Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / Misc / GDI / UnsafeNativeMethods.cs / 1 / UnsafeNativeMethods.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
#if WINFORMS_NAMESPACE
namespace System.Windows.Forms.Internal
#elif DRAWING_NAMESPACE
namespace System.Drawing.Internal
#else
namespace System.Experimental.Gdi
#endif
{
using System;
using System.Internal;
using System.Runtime.InteropServices;
using System.Security.Permissions;
using System.Collections;
using System.IO;
using System.Text;
using System.Diagnostics.CodeAnalysis;
using System.Drawing;
using System.Diagnostics;
[
System.Security.SuppressUnmanagedCodeSecurityAttribute()
]
#if WINFORMS_PUBLIC_GRAPHICS_LIBRARY
public
#else
internal
#endif
static partial class IntUnsafeNativeMethods
{
[DllImport(ExternDll.User32, SetLastError=true, ExactSpelling=true, EntryPoint="GetDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntGetDC(HandleRef hWnd);
public static IntPtr GetDC(HandleRef hWnd) {
IntPtr hdc = System.Internal.HandleCollector.Add(IntGetDC(hWnd), IntSafeNativeMethods.CommonHandles.HDC);
DbgUtil.AssertWin32(hdc != IntPtr.Zero, "GetHdc([hWnd=0x{0:X8}]) failed.", hWnd);
return hdc;
}
///
/// NOTE: DeleteDC is to be used to delete the hdc created from CreateCompatibleDC ONLY. All other hdcs should be
/// deleted with DeleteHDC.
///
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "DeleteDC", CharSet = CharSet.Auto)]
public static extern bool IntDeleteDC(HandleRef hDC);
public static bool DeleteDC(HandleRef hDC) {
System.Internal.HandleCollector.Remove((IntPtr)hDC, IntSafeNativeMethods.CommonHandles.GDI);
bool retVal = IntDeleteDC(hDC);
DbgUtil.AssertWin32(retVal, "DeleteDC([hdc=0x{0:X8}]) failed.", (int)hDC.Handle);
return retVal;
}
public static bool DeleteHDC(HandleRef hDC) {
System.Internal.HandleCollector.Remove((IntPtr)hDC, IntSafeNativeMethods.CommonHandles.HDC);
bool retVal = IntDeleteDC(hDC);
DbgUtil.AssertWin32(retVal, "DeleteHDC([hdc=0x{0:X8}]) failed.", (int)hDC.Handle);
return retVal;
}
[DllImport(ExternDll.User32, SetLastError=true, ExactSpelling=true, EntryPoint="ReleaseDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntReleaseDC(HandleRef hWnd, HandleRef hDC);
public static int ReleaseDC(HandleRef hWnd, HandleRef hDC) {
System.Internal.HandleCollector.Remove((IntPtr)hDC, IntSafeNativeMethods.CommonHandles.HDC);
// Note: retVal == 0 means it was not released but doesn't necessarily means an error; class or private DCs are never released.
return IntReleaseDC(hWnd, hDC);
}
// SECREVIEW : This method is called internally only and passed in safe data (obtain from the system).
[SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint="CreateDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntCreateDC(string lpszDriverName, string lpszDeviceName, string lpszOutput, HandleRef /*DEVMODE*/ lpInitData);
public static IntPtr CreateDC(String lpszDriverName, string lpszDeviceName, string lpszOutput, HandleRef /*DEVMODE*/ lpInitData)
{
IntPtr hdc = System.Internal.HandleCollector.Add(IntCreateDC(lpszDriverName, lpszDeviceName, lpszOutput, lpInitData), IntSafeNativeMethods.CommonHandles.HDC);
DbgUtil.AssertWin32(hdc != IntPtr.Zero, "CreateDC([driverName={0}], [deviceName={1}], [fileName={2}], [devMode={3}]) failed.", lpszDriverName, lpszDeviceName, lpszOutput, (int)lpInitData.Handle );
return hdc;
}
// SECREVIEW : This method is called internally only and passed in safe data (obtain from the system).
[SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint="CreateIC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntCreateIC(string lpszDriverName, string lpszDeviceName, string lpszOutput, HandleRef /*DEVMODE*/ lpInitData);
public static IntPtr CreateIC(string lpszDriverName, string lpszDeviceName, string lpszOutput, HandleRef /*DEVMODE*/ lpInitData)
{
IntPtr hdc = System.Internal.HandleCollector.Add(IntCreateIC(lpszDriverName, lpszDeviceName, lpszOutput, lpInitData), IntSafeNativeMethods.CommonHandles.HDC);
DbgUtil.AssertWin32(hdc != IntPtr.Zero, "CreateIC([driverName={0}], [deviceName={1}], [fileName={2}], [devMode={3}]) failed.", lpszDriverName, lpszDeviceName, lpszOutput, (int)lpInitData.Handle );
return hdc;
}
///
/// CreateCompatibleDC requires to add a GDI handle instead of an HDC handle to avoid perf penalty in HandleCollector.
/// The hdc obtained from this method needs to be deleted with DeleteDC instead of DeleteHDC.
///
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "CreateCompatibleDC", CharSet = CharSet.Auto)]
public static extern IntPtr IntCreateCompatibleDC(HandleRef hDC);
public static IntPtr CreateCompatibleDC(HandleRef hDC)
{
IntPtr compatibleDc = System.Internal.HandleCollector.Add(IntCreateCompatibleDC(hDC), IntSafeNativeMethods.CommonHandles.GDI);
DbgUtil.AssertWin32(compatibleDc != IntPtr.Zero, "CreateCompatibleDC([hdc=0x{0:X8}]) failed", (int)hDC.Handle);
return compatibleDc;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SaveDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntSaveDC(HandleRef hDC);
public static int SaveDC(HandleRef hDC)
{
int state = IntSaveDC(hDC);
DbgUtil.AssertWin32(state != 0, "SaveDC([hdc=0x{0:X8}]) failed", (int)hDC.Handle);
return state;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="RestoreDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntRestoreDC(HandleRef hDC, int nSavedDC);
public static bool RestoreDC(HandleRef hDC, int nSavedDC)
{
bool retVal = IntRestoreDC( hDC, nSavedDC );
//
return retVal;
}
[DllImport(ExternDll.User32, SetLastError=true, ExactSpelling = true)]
public static extern IntPtr WindowFromDC( HandleRef hDC );
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=CharSet.Auto)]
public static extern int GetDeviceCaps(HandleRef hDC, int nIndex);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="OffsetViewportOrgEx", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntOffsetViewportOrgEx(HandleRef hDC, int nXOffset, int nYOffset, [In, Out] IntNativeMethods.POINT point);
public static bool OffsetViewportOrgEx(HandleRef hDC, int nXOffset, int nYOffset, [In, Out] IntNativeMethods.POINT point)
{
bool retVal = IntOffsetViewportOrgEx(hDC, nXOffset, nYOffset, point);
DbgUtil.AssertWin32(retVal, "OffsetViewportOrgEx([hdc=0x{0:X8}], dx=[{1}], dy=[{2}], [out pPoint]) failed.", (int)hDC.Handle, nXOffset, nYOffset);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SetGraphicsMode", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntSetGraphicsMode(HandleRef hDC, int iMode);
public static int SetGraphicsMode(HandleRef hDC, int iMode)
{
iMode = IntSetGraphicsMode(hDC, iMode);
DbgUtil.AssertWin32(iMode != 0, "SetGraphicsMode([hdc=0x{0:X8}], [GM_ADVANCED]) failed.", (int)hDC.Handle);
return iMode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int GetGraphicsMode(HandleRef hDC);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true)]
public static extern int GetROP2( HandleRef hdc );
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int SetROP2(HandleRef hDC, int nDrawMode);
// Region.
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "CombineRgn", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntNativeMethods.RegionFlags IntCombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode);
public static IntNativeMethods.RegionFlags CombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode) {
Debug.Assert(hRgnDest.Wrapper != null && hRgnDest.Handle != IntPtr.Zero, "Destination region is invalid");
Debug.Assert(hRgnSrc1.Wrapper != null && hRgnSrc1.Handle != IntPtr.Zero, "Source region 1 is invalid");
Debug.Assert(hRgnSrc2.Wrapper != null && hRgnSrc2.Handle != IntPtr.Zero, "Source region 2 is invalid");
if (hRgnDest.Wrapper == null || hRgnSrc1.Wrapper == null || hRgnSrc2.Wrapper == null) {
return IntNativeMethods.RegionFlags.ERROR;
}
// Note: CombineRgn can return Error when no regions are combined, this is not an error condition.
return IntCombineRgn(hRgnDest, hRgnSrc1, hRgnSrc2, combineMode);
}
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "GetClipRgn", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetClipRgn(HandleRef hDC, HandleRef hRgn);
public static int GetClipRgn(HandleRef hDC, HandleRef hRgn) {
int retVal = IntGetClipRgn(hDC, hRgn);
DbgUtil.AssertWin32(retVal != -1, "IntGetClipRgn([hdc=0x{0:X8}], [hRgn]) failed.", (int)hDC.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "SelectClipRgn", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntNativeMethods.RegionFlags IntSelectClipRgn(HandleRef hDC, HandleRef hRgn);
public static IntNativeMethods.RegionFlags SelectClipRgn(HandleRef hDC, HandleRef hRgn)
{
IntNativeMethods.RegionFlags result = IntSelectClipRgn(hDC, hRgn);
DbgUtil.AssertWin32(result != IntNativeMethods.RegionFlags.ERROR, "SelectClipRgn([hdc=0x{0:X8}], [hRegion=0x{1:X8}]) failed.", (int)hDC.Handle, (int)hRgn.Handle);
return result;
}
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "GetRgnBox", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntNativeMethods.RegionFlags IntGetRgnBox(HandleRef hRgn, [In, Out] ref IntNativeMethods.RECT clipRect);
public static IntNativeMethods.RegionFlags GetRgnBox(HandleRef hRgn, [In, Out] ref IntNativeMethods.RECT clipRect)
{
IntNativeMethods.RegionFlags result = IntGetRgnBox(hRgn, ref clipRect);
DbgUtil.AssertWin32(result != IntNativeMethods.RegionFlags.ERROR, "GetRgnBox([hRegion=0x{0:X8}], [out rect]) failed.", (int)hRgn.Handle);
return result;
}
// Font.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage")]
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint="CreateFontIndirect", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntCreateFontIndirect([In, Out, MarshalAs(UnmanagedType.AsAny)] object lf); // need object here since LOGFONT is not public.
public static IntPtr CreateFontIndirect(/*IntNativeMethods.LOGFONT*/ object lf)
{
IntPtr hFont = System.Internal.HandleCollector.Add(IntCreateFontIndirect(lf), IntSafeNativeMethods.CommonHandles.GDI);
DbgUtil.AssertWin32(hFont != IntPtr.Zero, "CreateFontIndirect(logFont) failed.");
return hFont;
}
// Common.
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint = "DeleteObject", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntDeleteObject(HandleRef hObject);
public static bool DeleteObject(HandleRef hObject)
{
System.Internal.HandleCollector.Remove((IntPtr)hObject, IntSafeNativeMethods.CommonHandles.GDI);
bool retVal = IntDeleteObject(hObject);
DbgUtil.AssertWin32(retVal, "DeleteObject(hObj=[0x{0:X8}]) failed.", (int) hObject.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint = "GetObject", ExactSpelling=false, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetObject(HandleRef hBrush, int nSize, [In, Out] IntNativeMethods.LOGBRUSH lb);
public static int GetObject(HandleRef hBrush, IntNativeMethods.LOGBRUSH lb)
{
int retVal = IntGetObject(hBrush, System.Runtime.InteropServices.Marshal.SizeOf(typeof(IntNativeMethods.LOGBRUSH)), lb);
DbgUtil.AssertWin32(retVal != 0, "GetObject(hObj=[0x{0:X8}], [LOGBRUSH]) failed.", (int) hBrush.Handle );
return retVal;
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint = "GetObject", ExactSpelling=false, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetObject(HandleRef hFont, int nSize, [In, Out] IntNativeMethods.LOGFONT lf);
public static int GetObject(HandleRef hFont, IntNativeMethods.LOGFONT lp)
{
int retVal = IntGetObject(hFont, System.Runtime.InteropServices.Marshal.SizeOf(typeof(IntNativeMethods.LOGFONT)), lp);
DbgUtil.AssertWin32(retVal != 0, "GetObject(hObj=[0x{0:X8}], [LOGFONT]) failed.", (int) hFont.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SelectObject", CharSet=CharSet.Auto)]
public static extern IntPtr IntSelectObject(HandleRef hdc, HandleRef obj);
public static IntPtr SelectObject(HandleRef hdc, HandleRef obj)
{
IntPtr oldObj = IntSelectObject(hdc, obj);
DbgUtil.AssertWin32(oldObj != IntPtr.Zero, "SelectObject(hdc=hObj=[0x{0:X8}], hObj=[0x{1:X8}]) failed.", (int) hdc.Handle, (int) obj.Handle );
return oldObj;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="GetCurrentObject", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntGetCurrentObject(HandleRef hDC, int uObjectType);
public static IntPtr GetCurrentObject(HandleRef hDC, int uObjectType)
{
IntPtr hGdiObj = IntGetCurrentObject(hDC, uObjectType);
// If the selected object is a region the return value is HGI_ERROR on failure.
DbgUtil.AssertWin32(hGdiObj != IntPtr.Zero, "GetObject(hdc=[0x{0:X8}], type=[{1}]) failed.", hDC, uObjectType );
return hGdiObj;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="GetStockObject", CharSet=CharSet.Auto)]
public static extern IntPtr IntGetStockObject(int nIndex);
public static IntPtr GetStockObject(int nIndex)
{
IntPtr hGdiObj = IntGetStockObject(nIndex);
DbgUtil.AssertWin32(hGdiObj != IntPtr.Zero, "GetStockObject({0}) failed.", nIndex );
return hGdiObj;
}
// Drawing.
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int GetNearestColor(HandleRef hDC, int color);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int /*COLORREF*/ SetTextColor(HandleRef hDC, int crColor);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int GetTextAlign( HandleRef hdc );
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int /*COLORREF*/ GetTextColor(HandleRef hDC);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int SetBkColor(HandleRef hDC, int clr);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="SetBkMode", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntSetBkMode(HandleRef hDC, int nBkMode);
public static int SetBkMode(HandleRef hDC, int nBkMode)
{
int oldMode = IntSetBkMode( hDC, nBkMode );
DbgUtil.AssertWin32(oldMode != 0, "SetBkMode(hdc=[0x{0:X8}], Mode=[{1}]) failed.", (int)hDC.Handle, nBkMode );
return oldMode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="GetBkMode", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetBkMode(HandleRef hDC);
public static int GetBkMode(HandleRef hDC)
{
int mode = IntGetBkMode( hDC );
DbgUtil.AssertWin32(mode != 0, "GetBkMode(hdc=[0x{0:X8}]) failed.", (int)hDC.Handle );
return mode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int GetBkColor(HandleRef hDC);
[DllImport( ExternDll.User32, SetLastError = true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Unicode )]
public static extern int DrawTextW( HandleRef hDC, string lpszString, int nCount, ref IntNativeMethods.RECT lpRect, int nFormat );
[DllImport( ExternDll.User32, SetLastError = true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Ansi )]
public static extern int DrawTextA( HandleRef hDC, byte[] lpszString, int byteCount, ref IntNativeMethods.RECT lpRect, int nFormat );
public static int DrawText( HandleRef hDC, string text, ref IntNativeMethods.RECT lpRect, int nFormat )
{
int retVal;
if( Marshal.SystemDefaultCharSize == 1 )
{
// CapRectangleForWin9x(ref lpRect);
// we have to do this because if we pass too big of a value (<= 2^31) to win9x
// it fails and returns negative values as the rect in which it painted the text
lpRect.top = Math.Min( Int16.MaxValue, lpRect.top );
lpRect.left = Math.Min( Int16.MaxValue, lpRect.left );
lpRect.right = Math.Min( Int16.MaxValue, lpRect.right );
lpRect.bottom = Math.Min( Int16.MaxValue, lpRect.bottom );
// Convert Unicode string to ANSI.
int byteCount = IntUnsafeNativeMethods.WideCharToMultiByte( IntNativeMethods.CP_ACP, 0, text, text.Length, null, 0, IntPtr.Zero, IntPtr.Zero );
byte[] textBytes = new byte[byteCount];
IntUnsafeNativeMethods.WideCharToMultiByte( IntNativeMethods.CP_ACP, 0, text, text.Length, textBytes, textBytes.Length, IntPtr.Zero, IntPtr.Zero );
// Security: Windows 95/98/Me: This value may not exceed 8192.
byteCount = Math.Min( byteCount, IntNativeMethods.MaxTextLengthInWin9x );
retVal = DrawTextA( hDC, textBytes, byteCount, ref lpRect, nFormat );
}
else
{
retVal = DrawTextW( hDC, text, text.Length, ref lpRect, nFormat );
}
DbgUtil.AssertWin32( retVal != 0, "DrawText(hdc=[0x{0:X8}], text=[{1}], rect=[{2}], flags=[{3}] failed.", (int) hDC.Handle, text, lpRect, nFormat );
return retVal;
}
[DllImport(ExternDll.User32, SetLastError=true, CharSet=System.Runtime.InteropServices.CharSet.Unicode)]
public static extern int DrawTextExW(HandleRef hDC, string lpszString, int nCount, ref IntNativeMethods.RECT lpRect, int nFormat, [In, Out] IntNativeMethods.DRAWTEXTPARAMS lpDTParams);
[DllImport(ExternDll.User32, SetLastError=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi)]
public static extern int DrawTextExA(HandleRef hDC, byte[] lpszString, int byteCount, ref IntNativeMethods.RECT lpRect, int nFormat, [In, Out] IntNativeMethods.DRAWTEXTPARAMS lpDTParams);
public static int DrawTextEx(HandleRef hDC, string text, ref IntNativeMethods.RECT lpRect, int nFormat, [In, Out] IntNativeMethods.DRAWTEXTPARAMS lpDTParams)
{
int retVal;
if( Marshal.SystemDefaultCharSize == 1)
{
// CapRectangleForWin9x(ref lpRect);
// we have to do this because if we pass too big of a value (<= 2^31) to win9x
// it fails and returns negative values as the rect in which it painted the text
lpRect.top = Math.Min(Int16.MaxValue, lpRect.top);
lpRect.left = Math.Min(Int16.MaxValue, lpRect.left);
lpRect.right = Math.Min(Int16.MaxValue, lpRect.right);
lpRect.bottom = Math.Min(Int16.MaxValue, lpRect.bottom);
// Convert Unicode string to ANSI.
int byteCount = IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, null, 0, IntPtr.Zero, IntPtr.Zero);
byte[] textBytes = new byte[byteCount];
IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, textBytes, textBytes.Length, IntPtr.Zero, IntPtr.Zero);
// Security: Windows 95/98/Me: This value may not exceed 8192.
byteCount = Math.Min( byteCount, IntNativeMethods.MaxTextLengthInWin9x);
retVal = DrawTextExA( hDC, textBytes, byteCount, ref lpRect, nFormat, lpDTParams );
}
else
{
retVal = DrawTextExW( hDC, text, text.Length, ref lpRect, nFormat, lpDTParams );
}
DbgUtil.AssertWin32(retVal != 0, "DrawTextEx(hdc=[0x{0:X8}], text=[{1}], rect=[{2}], flags=[{3}] failed.", (int)hDC.Handle, text, lpRect, nFormat );
return retVal;
}
[SuppressMessage("Microsoft.Interoperability", "CA1400:PInvokeEntryPointsShouldExist")]
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Unicode)]
public static extern int GetTextExtentPoint32W(HandleRef hDC, string text, int len, [In, Out] IntNativeMethods.SIZE size);
[SuppressMessage("Microsoft.Interoperability", "CA1400:PInvokeEntryPointsShouldExist")]
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi)]
public static extern int GetTextExtentPoint32A(HandleRef hDC, byte[] lpszString, int byteCount, [In, Out] IntNativeMethods.SIZE size);
public static int GetTextExtentPoint32(HandleRef hDC, string text, [In, Out] IntNativeMethods.SIZE size)
{
int retVal;
int byteCount = text.Length;
if( Marshal.SystemDefaultCharSize == 1)
{
// Convert Unicode string to ANSI.
byteCount = IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, null, 0, IntPtr.Zero, IntPtr.Zero);
byte[] textBytes = new byte[byteCount];
IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, textBytes, textBytes.Length, IntPtr.Zero, IntPtr.Zero);
// Security: Windows 95/98/Me: This value may not exceed 8192.
byteCount = Math.Min( text.Length, IntNativeMethods.MaxTextLengthInWin9x);
retVal = GetTextExtentPoint32A(hDC, textBytes, byteCount, size);
}
else
{
retVal = GetTextExtentPoint32W(hDC, text, text.Length, size);
}
DbgUtil.AssertWin32(retVal != 0, "GetTextExtentPoint32(hdc=[0x{0:X8}], text=[{1}], size=[{2}] failed.", (int)hDC.Handle, text, size );
return retVal;
}
// WARNING: This method is currently used just for drawing the text background (ComponentEditorForm.cs) and not for rendering text.
// Prefer using DrawText over this method if possible, it handles Win9x issues properly. Ideally, we should remove this method
// but to avoid issues at this point I'm leaving it here.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=false, CharSet=CharSet.Auto)]
internal static extern bool ExtTextOut(HandleRef hdc, int x, int y, int options, ref IntNativeMethods.RECT rect,string str, int length, int[] spacing);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="LineTo", CharSet = CharSet.Auto)]
public static extern bool IntLineTo(HandleRef hdc, int x, int y);
public static bool LineTo(HandleRef hdc, int x, int y)
{
bool retVal = IntLineTo(hdc, x, y);
DbgUtil.AssertWin32(retVal, "LineTo(hdc=[0x{0:X8}], x=[{1}], y=[{2}] failed.", (int) hdc.Handle, x, y );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="MoveToEx", CharSet = CharSet.Auto)]
public static extern bool IntMoveToEx(HandleRef hdc, int x, int y, IntNativeMethods.POINT pt);
public static bool MoveToEx(HandleRef hdc, int x, int y, IntNativeMethods.POINT pt)
{
bool retVal = IntMoveToEx(hdc, x, y, pt);
DbgUtil.AssertWin32(retVal, "MoveToEx(hdc=[0x{0:X8}], x=[{1}], y=[{2}], pt=[{3}] failed.", (int) hdc.Handle, x, y, pt );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="Rectangle", CharSet = CharSet.Auto)]
public static extern bool IntRectangle(HandleRef hdc, int left, int top, int right, int bottom);
public static bool Rectangle(HandleRef hdc, int left, int top, int right, int bottom)
{
bool retVal = IntRectangle(hdc,left, top, right, bottom);
DbgUtil.AssertWin32(retVal, "Rectangle(hdc=[0x{0:X8}], left=[{1}], top=[{2}], right=[{3}], bottom=[{4}] failed.", (int) hdc.Handle, left, top, right, bottom );
return retVal;
}
[DllImport(ExternDll.User32, SetLastError=true, ExactSpelling = true, EntryPoint="FillRect", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntFillRect(HandleRef hdc, [In] ref IntNativeMethods.RECT rect, HandleRef hbrush);
public static bool FillRect(HandleRef hDC, [In] ref IntNativeMethods.RECT rect, HandleRef hbrush)
{
bool retVal = IntFillRect(hDC, ref rect, hbrush);
DbgUtil.AssertWin32(retVal, "FillRect(hdc=[0x{0:X8}], rect=[{1}], hbrush=[{2}]", (int)hDC.Handle, rect, hbrush.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="SetMapMode", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntSetMapMode(HandleRef hDC, int nMapMode);
public static int SetMapMode(HandleRef hDC, int nMapMode)
{
int oldMapMode = IntSetMapMode(hDC, nMapMode);
DbgUtil.AssertWin32(oldMapMode != 0, "SetMapMode(hdc=[0x{0:X8}], MapMode=[{1}]", (int)hDC.Handle, nMapMode);
return oldMapMode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="GetMapMode", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetMapMode(HandleRef hDC);
public static int GetMapMode(HandleRef hDC)
{
int mapMode = IntGetMapMode(hDC);
DbgUtil.AssertWin32(mapMode != 0, "GetMapMode(hdc=[0x{0:X8}]", (int)hDC.Handle);
return mapMode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="GetViewportExtEx")]
public static extern bool IntGetViewportExtEx( HandleRef hdc, [In, Out] IntNativeMethods.SIZE lpSize );
public static bool GetViewportExtEx( HandleRef hdc, [In, Out] IntNativeMethods.SIZE lpSize )
{
bool retVal = IntGetViewportExtEx( hdc, lpSize );
DbgUtil.AssertWin32(retVal, "GetViewportExtEx([hdc=0x{0:X8}], [out size]) failed.", (int)hdc.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="GetViewportOrgEx")]
public static extern bool IntGetViewportOrgEx( HandleRef hdc, [In, Out] IntNativeMethods.POINT lpPoint );
public static bool GetViewportOrgEx( HandleRef hdc, [In, Out] IntNativeMethods.POINT lpPoint )
{
bool retVal = IntGetViewportOrgEx( hdc, lpPoint );
DbgUtil.AssertWin32(retVal, "GetViewportOrgEx([hdc=0x{0:X8}], [out point]) failed.", (int)hdc.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SetViewportExtEx", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntSetViewportExtEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.SIZE size);
public static bool SetViewportExtEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.SIZE size)
{
bool retVal = IntSetViewportExtEx(hDC, x, y, size);
DbgUtil.AssertWin32(retVal, "SetViewportExtEx([hdc=0x{0:X8}], x=[{1}], y=[{2}], [out size]) failed.", (int)hDC.Handle, x, y);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SetViewportOrgEx", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntSetViewportOrgEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.POINT point);
public static bool SetViewportOrgEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.POINT point)
{
bool retVal = IntSetViewportOrgEx(hDC, x, y, point);
DbgUtil.AssertWin32(retVal, "SetViewportOrgEx([hdc=0x{0:X8}], x=[{1}], y=[{2}], [out point]) failed.", (int)hDC.Handle, x, y);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
public static extern int GetTextMetricsW(HandleRef hDC, [In, Out] ref IntNativeMethods.TEXTMETRIC lptm);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet = System.Runtime.InteropServices.CharSet.Ansi)]
public static extern int GetTextMetricsA(HandleRef hDC, [In, Out] ref IntNativeMethods.TEXTMETRICA lptm);
public static int GetTextMetrics(HandleRef hDC, ref IntNativeMethods.TEXTMETRIC lptm)
{
int retVal;
if (Marshal.SystemDefaultCharSize == 1)
{
// ANSI
IntNativeMethods.TEXTMETRICA lptmA = new IntNativeMethods.TEXTMETRICA();
retVal = IntUnsafeNativeMethods.GetTextMetricsA(hDC, ref lptmA);
lptm.tmHeight = lptmA.tmHeight;
lptm.tmAscent = lptmA.tmAscent;
lptm.tmDescent = lptmA.tmDescent;
lptm.tmInternalLeading = lptmA.tmInternalLeading;
lptm.tmExternalLeading = lptmA.tmExternalLeading;
lptm.tmAveCharWidth = lptmA.tmAveCharWidth;
lptm.tmMaxCharWidth = lptmA.tmMaxCharWidth;
lptm.tmWeight = lptmA.tmWeight;
lptm.tmOverhang = lptmA.tmOverhang;
lptm.tmDigitizedAspectX = lptmA.tmDigitizedAspectX;
lptm.tmDigitizedAspectY = lptmA.tmDigitizedAspectY;
lptm.tmFirstChar = (char) lptmA.tmFirstChar;
lptm.tmLastChar = (char) lptmA.tmLastChar;
lptm.tmDefaultChar = (char) lptmA.tmDefaultChar;
lptm.tmBreakChar = (char) lptmA.tmBreakChar;
lptm.tmItalic = lptmA.tmItalic;
lptm.tmUnderlined = lptmA.tmUnderlined;
lptm.tmStruckOut = lptmA.tmStruckOut;
lptm.tmPitchAndFamily = lptmA.tmPitchAndFamily;
lptm.tmCharSet = lptmA.tmCharSet;
}
else
{
// Unicode
retVal = IntUnsafeNativeMethods.GetTextMetricsW(hDC, ref lptm);
}
DbgUtil.AssertWin32(retVal != 0, "GetTextMetrics(hdc=[0x{0:X8}], [out TEXTMETRIC] failed.", (int)hDC.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="BeginPath", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntBeginPath(HandleRef hDC);
public static bool BeginPath(HandleRef hDC)
{
bool retVal = IntBeginPath(hDC);
DbgUtil.AssertWin32(retVal, "BeginPath(hdc=[0x{0:X8}]failed.", (int)hDC.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="EndPath", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntEndPath(HandleRef hDC);
public static bool EndPath(HandleRef hDC)
{
bool retVal = IntEndPath(hDC);
DbgUtil.AssertWin32(retVal, "EndPath(hdc=[0x{0:X8}]failed.", (int)hDC.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="StrokePath", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntStrokePath(HandleRef hDC);
public static bool StrokePath(HandleRef hDC)
{
bool retVal = IntStrokePath(hDC);
DbgUtil.AssertWin32(retVal, "StrokePath(hdc=[0x{0:X8}]failed.", (int)hDC.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="AngleArc", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntAngleArc(HandleRef hDC, int x, int y, int radius, float startAngle, float endAngle);
public static bool AngleArc(HandleRef hDC, int x, int y, int radius, float startAngle, float endAngle)
{
bool retVal = IntAngleArc(hDC, x, y, radius, startAngle, endAngle);
DbgUtil.AssertWin32(retVal, "AngleArc(hdc=[0x{0:X8}], ...) failed.", (int)hDC.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="Arc", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntArc(
HandleRef hDC,
int nLeftRect, // x-coord of rectangle's upper-left corner
int nTopRect, // y-coord of rectangle's upper-left corner
int nRightRect, // x-coord of rectangle's lower-right corner
int nBottomRect, // y-coord of rectangle's lower-right corner
int nXStartArc, // x-coord of first radial ending point
int nYStartArc, // y-coord of first radial ending point
int nXEndArc, // x-coord of second radial ending point
int nYEndArc // y-coord of second radial ending point
);
public static bool Arc(
HandleRef hDC,
int nLeftRect, // x-coord of rectangle's upper-left corner
int nTopRect, // y-coord of rectangle's upper-left corner
int nRightRect, // x-coord of rectangle's lower-right corner
int nBottomRect, // y-coord of rectangle's lower-right corner
int nXStartArc, // x-coord of first radial ending point
int nYStartArc, // y-coord of first radial ending point
int nXEndArc, // x-coord of second radial ending point
int nYEndArc // y-coord of second radial ending point
)
{
bool retVal = IntArc(hDC, nLeftRect, nTopRect, nRightRect, nBottomRect, nXStartArc, nYStartArc, nXEndArc, nYEndArc);
DbgUtil.AssertWin32(retVal, "Arc(hdc=[0x{0:X8}], ...) failed.", (int)hDC.Handle);
return retVal;
}
// Misc.
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int SetTextAlign(HandleRef hDC, int nMode);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="Ellipse", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntEllipse(HandleRef hDc, int x1, int y1, int x2, int y2);
public static bool Ellipse(HandleRef hDc, int x1, int y1, int x2, int y2)
{
bool retVal = IntEllipse(hDc, x1, y1, x2, y2);
DbgUtil.AssertWin32(retVal, "Ellipse(hdc=[0x{0:X8}], x1=[{1}], y1=[{2}], x2=[{3}], y2=[{4}]) failed.", (int) hDc.Handle, x1, y1, x2, y2);
return retVal;
}
// SECREVIEW: From MSDN: Using the MultiByteToWideChar/WideCharToMultiByte function incorrectly can compromise the security of your application.
// Calling the WideCharToMultiByte function can easily cause a buffer overrun because the size of the In buffer equals the number
// of WCHARs in the string, while the size of the Out buffer equals the number of bytes. To avoid a buffer overrun, be sure to specify
// a buffer size appropriate for the data type the buffer receives. For more information, see Security Considerations: International Features.
// Always call these functions passing a null destination buffer to get its size and the create the buffer with the exact size.
[DllImport(ExternDll.Kernel32, ExactSpelling=true, CharSet=CharSet.Unicode)]
public static extern int WideCharToMultiByte(int codePage, int flags, [MarshalAs(UnmanagedType.LPWStr)]string wideStr, int chars, [In,Out]byte[] pOutBytes, int bufferBytes, IntPtr defaultChar, IntPtr pDefaultUsed);
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
#if WINFORMS_NAMESPACE
namespace System.Windows.Forms.Internal
#elif DRAWING_NAMESPACE
namespace System.Drawing.Internal
#else
namespace System.Experimental.Gdi
#endif
{
using System;
using System.Internal;
using System.Runtime.InteropServices;
using System.Security.Permissions;
using System.Collections;
using System.IO;
using System.Text;
using System.Diagnostics.CodeAnalysis;
using System.Drawing;
using System.Diagnostics;
[
System.Security.SuppressUnmanagedCodeSecurityAttribute()
]
#if WINFORMS_PUBLIC_GRAPHICS_LIBRARY
public
#else
internal
#endif
static partial class IntUnsafeNativeMethods
{
[DllImport(ExternDll.User32, SetLastError=true, ExactSpelling=true, EntryPoint="GetDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntGetDC(HandleRef hWnd);
public static IntPtr GetDC(HandleRef hWnd) {
IntPtr hdc = System.Internal.HandleCollector.Add(IntGetDC(hWnd), IntSafeNativeMethods.CommonHandles.HDC);
DbgUtil.AssertWin32(hdc != IntPtr.Zero, "GetHdc([hWnd=0x{0:X8}]) failed.", hWnd);
return hdc;
}
///
/// NOTE: DeleteDC is to be used to delete the hdc created from CreateCompatibleDC ONLY. All other hdcs should be
/// deleted with DeleteHDC.
///
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "DeleteDC", CharSet = CharSet.Auto)]
public static extern bool IntDeleteDC(HandleRef hDC);
public static bool DeleteDC(HandleRef hDC) {
System.Internal.HandleCollector.Remove((IntPtr)hDC, IntSafeNativeMethods.CommonHandles.GDI);
bool retVal = IntDeleteDC(hDC);
DbgUtil.AssertWin32(retVal, "DeleteDC([hdc=0x{0:X8}]) failed.", (int)hDC.Handle);
return retVal;
}
public static bool DeleteHDC(HandleRef hDC) {
System.Internal.HandleCollector.Remove((IntPtr)hDC, IntSafeNativeMethods.CommonHandles.HDC);
bool retVal = IntDeleteDC(hDC);
DbgUtil.AssertWin32(retVal, "DeleteHDC([hdc=0x{0:X8}]) failed.", (int)hDC.Handle);
return retVal;
}
[DllImport(ExternDll.User32, SetLastError=true, ExactSpelling=true, EntryPoint="ReleaseDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntReleaseDC(HandleRef hWnd, HandleRef hDC);
public static int ReleaseDC(HandleRef hWnd, HandleRef hDC) {
System.Internal.HandleCollector.Remove((IntPtr)hDC, IntSafeNativeMethods.CommonHandles.HDC);
// Note: retVal == 0 means it was not released but doesn't necessarily means an error; class or private DCs are never released.
return IntReleaseDC(hWnd, hDC);
}
// SECREVIEW : This method is called internally only and passed in safe data (obtain from the system).
[SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint="CreateDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntCreateDC(string lpszDriverName, string lpszDeviceName, string lpszOutput, HandleRef /*DEVMODE*/ lpInitData);
public static IntPtr CreateDC(String lpszDriverName, string lpszDeviceName, string lpszOutput, HandleRef /*DEVMODE*/ lpInitData)
{
IntPtr hdc = System.Internal.HandleCollector.Add(IntCreateDC(lpszDriverName, lpszDeviceName, lpszOutput, lpInitData), IntSafeNativeMethods.CommonHandles.HDC);
DbgUtil.AssertWin32(hdc != IntPtr.Zero, "CreateDC([driverName={0}], [deviceName={1}], [fileName={2}], [devMode={3}]) failed.", lpszDriverName, lpszDeviceName, lpszOutput, (int)lpInitData.Handle );
return hdc;
}
// SECREVIEW : This method is called internally only and passed in safe data (obtain from the system).
[SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint="CreateIC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntCreateIC(string lpszDriverName, string lpszDeviceName, string lpszOutput, HandleRef /*DEVMODE*/ lpInitData);
public static IntPtr CreateIC(string lpszDriverName, string lpszDeviceName, string lpszOutput, HandleRef /*DEVMODE*/ lpInitData)
{
IntPtr hdc = System.Internal.HandleCollector.Add(IntCreateIC(lpszDriverName, lpszDeviceName, lpszOutput, lpInitData), IntSafeNativeMethods.CommonHandles.HDC);
DbgUtil.AssertWin32(hdc != IntPtr.Zero, "CreateIC([driverName={0}], [deviceName={1}], [fileName={2}], [devMode={3}]) failed.", lpszDriverName, lpszDeviceName, lpszOutput, (int)lpInitData.Handle );
return hdc;
}
///
/// CreateCompatibleDC requires to add a GDI handle instead of an HDC handle to avoid perf penalty in HandleCollector.
/// The hdc obtained from this method needs to be deleted with DeleteDC instead of DeleteHDC.
///
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "CreateCompatibleDC", CharSet = CharSet.Auto)]
public static extern IntPtr IntCreateCompatibleDC(HandleRef hDC);
public static IntPtr CreateCompatibleDC(HandleRef hDC)
{
IntPtr compatibleDc = System.Internal.HandleCollector.Add(IntCreateCompatibleDC(hDC), IntSafeNativeMethods.CommonHandles.GDI);
DbgUtil.AssertWin32(compatibleDc != IntPtr.Zero, "CreateCompatibleDC([hdc=0x{0:X8}]) failed", (int)hDC.Handle);
return compatibleDc;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SaveDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntSaveDC(HandleRef hDC);
public static int SaveDC(HandleRef hDC)
{
int state = IntSaveDC(hDC);
DbgUtil.AssertWin32(state != 0, "SaveDC([hdc=0x{0:X8}]) failed", (int)hDC.Handle);
return state;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="RestoreDC", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntRestoreDC(HandleRef hDC, int nSavedDC);
public static bool RestoreDC(HandleRef hDC, int nSavedDC)
{
bool retVal = IntRestoreDC( hDC, nSavedDC );
//
return retVal;
}
[DllImport(ExternDll.User32, SetLastError=true, ExactSpelling = true)]
public static extern IntPtr WindowFromDC( HandleRef hDC );
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=CharSet.Auto)]
public static extern int GetDeviceCaps(HandleRef hDC, int nIndex);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="OffsetViewportOrgEx", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntOffsetViewportOrgEx(HandleRef hDC, int nXOffset, int nYOffset, [In, Out] IntNativeMethods.POINT point);
public static bool OffsetViewportOrgEx(HandleRef hDC, int nXOffset, int nYOffset, [In, Out] IntNativeMethods.POINT point)
{
bool retVal = IntOffsetViewportOrgEx(hDC, nXOffset, nYOffset, point);
DbgUtil.AssertWin32(retVal, "OffsetViewportOrgEx([hdc=0x{0:X8}], dx=[{1}], dy=[{2}], [out pPoint]) failed.", (int)hDC.Handle, nXOffset, nYOffset);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SetGraphicsMode", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntSetGraphicsMode(HandleRef hDC, int iMode);
public static int SetGraphicsMode(HandleRef hDC, int iMode)
{
iMode = IntSetGraphicsMode(hDC, iMode);
DbgUtil.AssertWin32(iMode != 0, "SetGraphicsMode([hdc=0x{0:X8}], [GM_ADVANCED]) failed.", (int)hDC.Handle);
return iMode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int GetGraphicsMode(HandleRef hDC);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true)]
public static extern int GetROP2( HandleRef hdc );
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int SetROP2(HandleRef hDC, int nDrawMode);
// Region.
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "CombineRgn", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntNativeMethods.RegionFlags IntCombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode);
public static IntNativeMethods.RegionFlags CombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode) {
Debug.Assert(hRgnDest.Wrapper != null && hRgnDest.Handle != IntPtr.Zero, "Destination region is invalid");
Debug.Assert(hRgnSrc1.Wrapper != null && hRgnSrc1.Handle != IntPtr.Zero, "Source region 1 is invalid");
Debug.Assert(hRgnSrc2.Wrapper != null && hRgnSrc2.Handle != IntPtr.Zero, "Source region 2 is invalid");
if (hRgnDest.Wrapper == null || hRgnSrc1.Wrapper == null || hRgnSrc2.Wrapper == null) {
return IntNativeMethods.RegionFlags.ERROR;
}
// Note: CombineRgn can return Error when no regions are combined, this is not an error condition.
return IntCombineRgn(hRgnDest, hRgnSrc1, hRgnSrc2, combineMode);
}
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "GetClipRgn", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetClipRgn(HandleRef hDC, HandleRef hRgn);
public static int GetClipRgn(HandleRef hDC, HandleRef hRgn) {
int retVal = IntGetClipRgn(hDC, hRgn);
DbgUtil.AssertWin32(retVal != -1, "IntGetClipRgn([hdc=0x{0:X8}], [hRgn]) failed.", (int)hDC.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "SelectClipRgn", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntNativeMethods.RegionFlags IntSelectClipRgn(HandleRef hDC, HandleRef hRgn);
public static IntNativeMethods.RegionFlags SelectClipRgn(HandleRef hDC, HandleRef hRgn)
{
IntNativeMethods.RegionFlags result = IntSelectClipRgn(hDC, hRgn);
DbgUtil.AssertWin32(result != IntNativeMethods.RegionFlags.ERROR, "SelectClipRgn([hdc=0x{0:X8}], [hRegion=0x{1:X8}]) failed.", (int)hDC.Handle, (int)hRgn.Handle);
return result;
}
[DllImport(ExternDll.Gdi32, SetLastError = true, ExactSpelling = true, EntryPoint = "GetRgnBox", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntNativeMethods.RegionFlags IntGetRgnBox(HandleRef hRgn, [In, Out] ref IntNativeMethods.RECT clipRect);
public static IntNativeMethods.RegionFlags GetRgnBox(HandleRef hRgn, [In, Out] ref IntNativeMethods.RECT clipRect)
{
IntNativeMethods.RegionFlags result = IntGetRgnBox(hRgn, ref clipRect);
DbgUtil.AssertWin32(result != IntNativeMethods.RegionFlags.ERROR, "GetRgnBox([hRegion=0x{0:X8}], [out rect]) failed.", (int)hRgn.Handle);
return result;
}
// Font.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage")]
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint="CreateFontIndirect", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntCreateFontIndirect([In, Out, MarshalAs(UnmanagedType.AsAny)] object lf); // need object here since LOGFONT is not public.
public static IntPtr CreateFontIndirect(/*IntNativeMethods.LOGFONT*/ object lf)
{
IntPtr hFont = System.Internal.HandleCollector.Add(IntCreateFontIndirect(lf), IntSafeNativeMethods.CommonHandles.GDI);
DbgUtil.AssertWin32(hFont != IntPtr.Zero, "CreateFontIndirect(logFont) failed.");
return hFont;
}
// Common.
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint = "DeleteObject", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntDeleteObject(HandleRef hObject);
public static bool DeleteObject(HandleRef hObject)
{
System.Internal.HandleCollector.Remove((IntPtr)hObject, IntSafeNativeMethods.CommonHandles.GDI);
bool retVal = IntDeleteObject(hObject);
DbgUtil.AssertWin32(retVal, "DeleteObject(hObj=[0x{0:X8}]) failed.", (int) hObject.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint = "GetObject", ExactSpelling=false, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetObject(HandleRef hBrush, int nSize, [In, Out] IntNativeMethods.LOGBRUSH lb);
public static int GetObject(HandleRef hBrush, IntNativeMethods.LOGBRUSH lb)
{
int retVal = IntGetObject(hBrush, System.Runtime.InteropServices.Marshal.SizeOf(typeof(IntNativeMethods.LOGBRUSH)), lb);
DbgUtil.AssertWin32(retVal != 0, "GetObject(hObj=[0x{0:X8}], [LOGBRUSH]) failed.", (int) hBrush.Handle );
return retVal;
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[DllImport(ExternDll.Gdi32, SetLastError=true, EntryPoint = "GetObject", ExactSpelling=false, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetObject(HandleRef hFont, int nSize, [In, Out] IntNativeMethods.LOGFONT lf);
public static int GetObject(HandleRef hFont, IntNativeMethods.LOGFONT lp)
{
int retVal = IntGetObject(hFont, System.Runtime.InteropServices.Marshal.SizeOf(typeof(IntNativeMethods.LOGFONT)), lp);
DbgUtil.AssertWin32(retVal != 0, "GetObject(hObj=[0x{0:X8}], [LOGFONT]) failed.", (int) hFont.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SelectObject", CharSet=CharSet.Auto)]
public static extern IntPtr IntSelectObject(HandleRef hdc, HandleRef obj);
public static IntPtr SelectObject(HandleRef hdc, HandleRef obj)
{
IntPtr oldObj = IntSelectObject(hdc, obj);
DbgUtil.AssertWin32(oldObj != IntPtr.Zero, "SelectObject(hdc=hObj=[0x{0:X8}], hObj=[0x{1:X8}]) failed.", (int) hdc.Handle, (int) obj.Handle );
return oldObj;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="GetCurrentObject", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern IntPtr IntGetCurrentObject(HandleRef hDC, int uObjectType);
public static IntPtr GetCurrentObject(HandleRef hDC, int uObjectType)
{
IntPtr hGdiObj = IntGetCurrentObject(hDC, uObjectType);
// If the selected object is a region the return value is HGI_ERROR on failure.
DbgUtil.AssertWin32(hGdiObj != IntPtr.Zero, "GetObject(hdc=[0x{0:X8}], type=[{1}]) failed.", hDC, uObjectType );
return hGdiObj;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="GetStockObject", CharSet=CharSet.Auto)]
public static extern IntPtr IntGetStockObject(int nIndex);
public static IntPtr GetStockObject(int nIndex)
{
IntPtr hGdiObj = IntGetStockObject(nIndex);
DbgUtil.AssertWin32(hGdiObj != IntPtr.Zero, "GetStockObject({0}) failed.", nIndex );
return hGdiObj;
}
// Drawing.
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int GetNearestColor(HandleRef hDC, int color);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int /*COLORREF*/ SetTextColor(HandleRef hDC, int crColor);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int GetTextAlign( HandleRef hdc );
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int /*COLORREF*/ GetTextColor(HandleRef hDC);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int SetBkColor(HandleRef hDC, int clr);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="SetBkMode", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntSetBkMode(HandleRef hDC, int nBkMode);
public static int SetBkMode(HandleRef hDC, int nBkMode)
{
int oldMode = IntSetBkMode( hDC, nBkMode );
DbgUtil.AssertWin32(oldMode != 0, "SetBkMode(hdc=[0x{0:X8}], Mode=[{1}]) failed.", (int)hDC.Handle, nBkMode );
return oldMode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="GetBkMode", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetBkMode(HandleRef hDC);
public static int GetBkMode(HandleRef hDC)
{
int mode = IntGetBkMode( hDC );
DbgUtil.AssertWin32(mode != 0, "GetBkMode(hdc=[0x{0:X8}]) failed.", (int)hDC.Handle );
return mode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int GetBkColor(HandleRef hDC);
[DllImport( ExternDll.User32, SetLastError = true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Unicode )]
public static extern int DrawTextW( HandleRef hDC, string lpszString, int nCount, ref IntNativeMethods.RECT lpRect, int nFormat );
[DllImport( ExternDll.User32, SetLastError = true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Ansi )]
public static extern int DrawTextA( HandleRef hDC, byte[] lpszString, int byteCount, ref IntNativeMethods.RECT lpRect, int nFormat );
public static int DrawText( HandleRef hDC, string text, ref IntNativeMethods.RECT lpRect, int nFormat )
{
int retVal;
if( Marshal.SystemDefaultCharSize == 1 )
{
// CapRectangleForWin9x(ref lpRect);
// we have to do this because if we pass too big of a value (<= 2^31) to win9x
// it fails and returns negative values as the rect in which it painted the text
lpRect.top = Math.Min( Int16.MaxValue, lpRect.top );
lpRect.left = Math.Min( Int16.MaxValue, lpRect.left );
lpRect.right = Math.Min( Int16.MaxValue, lpRect.right );
lpRect.bottom = Math.Min( Int16.MaxValue, lpRect.bottom );
// Convert Unicode string to ANSI.
int byteCount = IntUnsafeNativeMethods.WideCharToMultiByte( IntNativeMethods.CP_ACP, 0, text, text.Length, null, 0, IntPtr.Zero, IntPtr.Zero );
byte[] textBytes = new byte[byteCount];
IntUnsafeNativeMethods.WideCharToMultiByte( IntNativeMethods.CP_ACP, 0, text, text.Length, textBytes, textBytes.Length, IntPtr.Zero, IntPtr.Zero );
// Security: Windows 95/98/Me: This value may not exceed 8192.
byteCount = Math.Min( byteCount, IntNativeMethods.MaxTextLengthInWin9x );
retVal = DrawTextA( hDC, textBytes, byteCount, ref lpRect, nFormat );
}
else
{
retVal = DrawTextW( hDC, text, text.Length, ref lpRect, nFormat );
}
DbgUtil.AssertWin32( retVal != 0, "DrawText(hdc=[0x{0:X8}], text=[{1}], rect=[{2}], flags=[{3}] failed.", (int) hDC.Handle, text, lpRect, nFormat );
return retVal;
}
[DllImport(ExternDll.User32, SetLastError=true, CharSet=System.Runtime.InteropServices.CharSet.Unicode)]
public static extern int DrawTextExW(HandleRef hDC, string lpszString, int nCount, ref IntNativeMethods.RECT lpRect, int nFormat, [In, Out] IntNativeMethods.DRAWTEXTPARAMS lpDTParams);
[DllImport(ExternDll.User32, SetLastError=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi)]
public static extern int DrawTextExA(HandleRef hDC, byte[] lpszString, int byteCount, ref IntNativeMethods.RECT lpRect, int nFormat, [In, Out] IntNativeMethods.DRAWTEXTPARAMS lpDTParams);
public static int DrawTextEx(HandleRef hDC, string text, ref IntNativeMethods.RECT lpRect, int nFormat, [In, Out] IntNativeMethods.DRAWTEXTPARAMS lpDTParams)
{
int retVal;
if( Marshal.SystemDefaultCharSize == 1)
{
// CapRectangleForWin9x(ref lpRect);
// we have to do this because if we pass too big of a value (<= 2^31) to win9x
// it fails and returns negative values as the rect in which it painted the text
lpRect.top = Math.Min(Int16.MaxValue, lpRect.top);
lpRect.left = Math.Min(Int16.MaxValue, lpRect.left);
lpRect.right = Math.Min(Int16.MaxValue, lpRect.right);
lpRect.bottom = Math.Min(Int16.MaxValue, lpRect.bottom);
// Convert Unicode string to ANSI.
int byteCount = IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, null, 0, IntPtr.Zero, IntPtr.Zero);
byte[] textBytes = new byte[byteCount];
IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, textBytes, textBytes.Length, IntPtr.Zero, IntPtr.Zero);
// Security: Windows 95/98/Me: This value may not exceed 8192.
byteCount = Math.Min( byteCount, IntNativeMethods.MaxTextLengthInWin9x);
retVal = DrawTextExA( hDC, textBytes, byteCount, ref lpRect, nFormat, lpDTParams );
}
else
{
retVal = DrawTextExW( hDC, text, text.Length, ref lpRect, nFormat, lpDTParams );
}
DbgUtil.AssertWin32(retVal != 0, "DrawTextEx(hdc=[0x{0:X8}], text=[{1}], rect=[{2}], flags=[{3}] failed.", (int)hDC.Handle, text, lpRect, nFormat );
return retVal;
}
[SuppressMessage("Microsoft.Interoperability", "CA1400:PInvokeEntryPointsShouldExist")]
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Unicode)]
public static extern int GetTextExtentPoint32W(HandleRef hDC, string text, int len, [In, Out] IntNativeMethods.SIZE size);
[SuppressMessage("Microsoft.Interoperability", "CA1400:PInvokeEntryPointsShouldExist")]
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi)]
public static extern int GetTextExtentPoint32A(HandleRef hDC, byte[] lpszString, int byteCount, [In, Out] IntNativeMethods.SIZE size);
public static int GetTextExtentPoint32(HandleRef hDC, string text, [In, Out] IntNativeMethods.SIZE size)
{
int retVal;
int byteCount = text.Length;
if( Marshal.SystemDefaultCharSize == 1)
{
// Convert Unicode string to ANSI.
byteCount = IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, null, 0, IntPtr.Zero, IntPtr.Zero);
byte[] textBytes = new byte[byteCount];
IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, textBytes, textBytes.Length, IntPtr.Zero, IntPtr.Zero);
// Security: Windows 95/98/Me: This value may not exceed 8192.
byteCount = Math.Min( text.Length, IntNativeMethods.MaxTextLengthInWin9x);
retVal = GetTextExtentPoint32A(hDC, textBytes, byteCount, size);
}
else
{
retVal = GetTextExtentPoint32W(hDC, text, text.Length, size);
}
DbgUtil.AssertWin32(retVal != 0, "GetTextExtentPoint32(hdc=[0x{0:X8}], text=[{1}], size=[{2}] failed.", (int)hDC.Handle, text, size );
return retVal;
}
// WARNING: This method is currently used just for drawing the text background (ComponentEditorForm.cs) and not for rendering text.
// Prefer using DrawText over this method if possible, it handles Win9x issues properly. Ideally, we should remove this method
// but to avoid issues at this point I'm leaving it here.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=false, CharSet=CharSet.Auto)]
internal static extern bool ExtTextOut(HandleRef hdc, int x, int y, int options, ref IntNativeMethods.RECT rect,string str, int length, int[] spacing);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="LineTo", CharSet = CharSet.Auto)]
public static extern bool IntLineTo(HandleRef hdc, int x, int y);
public static bool LineTo(HandleRef hdc, int x, int y)
{
bool retVal = IntLineTo(hdc, x, y);
DbgUtil.AssertWin32(retVal, "LineTo(hdc=[0x{0:X8}], x=[{1}], y=[{2}] failed.", (int) hdc.Handle, x, y );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="MoveToEx", CharSet = CharSet.Auto)]
public static extern bool IntMoveToEx(HandleRef hdc, int x, int y, IntNativeMethods.POINT pt);
public static bool MoveToEx(HandleRef hdc, int x, int y, IntNativeMethods.POINT pt)
{
bool retVal = IntMoveToEx(hdc, x, y, pt);
DbgUtil.AssertWin32(retVal, "MoveToEx(hdc=[0x{0:X8}], x=[{1}], y=[{2}], pt=[{3}] failed.", (int) hdc.Handle, x, y, pt );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="Rectangle", CharSet = CharSet.Auto)]
public static extern bool IntRectangle(HandleRef hdc, int left, int top, int right, int bottom);
public static bool Rectangle(HandleRef hdc, int left, int top, int right, int bottom)
{
bool retVal = IntRectangle(hdc,left, top, right, bottom);
DbgUtil.AssertWin32(retVal, "Rectangle(hdc=[0x{0:X8}], left=[{1}], top=[{2}], right=[{3}], bottom=[{4}] failed.", (int) hdc.Handle, left, top, right, bottom );
return retVal;
}
[DllImport(ExternDll.User32, SetLastError=true, ExactSpelling = true, EntryPoint="FillRect", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntFillRect(HandleRef hdc, [In] ref IntNativeMethods.RECT rect, HandleRef hbrush);
public static bool FillRect(HandleRef hDC, [In] ref IntNativeMethods.RECT rect, HandleRef hbrush)
{
bool retVal = IntFillRect(hDC, ref rect, hbrush);
DbgUtil.AssertWin32(retVal, "FillRect(hdc=[0x{0:X8}], rect=[{1}], hbrush=[{2}]", (int)hDC.Handle, rect, hbrush.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="SetMapMode", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntSetMapMode(HandleRef hDC, int nMapMode);
public static int SetMapMode(HandleRef hDC, int nMapMode)
{
int oldMapMode = IntSetMapMode(hDC, nMapMode);
DbgUtil.AssertWin32(oldMapMode != 0, "SetMapMode(hdc=[0x{0:X8}], MapMode=[{1}]", (int)hDC.Handle, nMapMode);
return oldMapMode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="GetMapMode", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern int IntGetMapMode(HandleRef hDC);
public static int GetMapMode(HandleRef hDC)
{
int mapMode = IntGetMapMode(hDC);
DbgUtil.AssertWin32(mapMode != 0, "GetMapMode(hdc=[0x{0:X8}]", (int)hDC.Handle);
return mapMode;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="GetViewportExtEx")]
public static extern bool IntGetViewportExtEx( HandleRef hdc, [In, Out] IntNativeMethods.SIZE lpSize );
public static bool GetViewportExtEx( HandleRef hdc, [In, Out] IntNativeMethods.SIZE lpSize )
{
bool retVal = IntGetViewportExtEx( hdc, lpSize );
DbgUtil.AssertWin32(retVal, "GetViewportExtEx([hdc=0x{0:X8}], [out size]) failed.", (int)hdc.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="GetViewportOrgEx")]
public static extern bool IntGetViewportOrgEx( HandleRef hdc, [In, Out] IntNativeMethods.POINT lpPoint );
public static bool GetViewportOrgEx( HandleRef hdc, [In, Out] IntNativeMethods.POINT lpPoint )
{
bool retVal = IntGetViewportOrgEx( hdc, lpPoint );
DbgUtil.AssertWin32(retVal, "GetViewportOrgEx([hdc=0x{0:X8}], [out point]) failed.", (int)hdc.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SetViewportExtEx", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntSetViewportExtEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.SIZE size);
public static bool SetViewportExtEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.SIZE size)
{
bool retVal = IntSetViewportExtEx(hDC, x, y, size);
DbgUtil.AssertWin32(retVal, "SetViewportExtEx([hdc=0x{0:X8}], x=[{1}], y=[{2}], [out size]) failed.", (int)hDC.Handle, x, y);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="SetViewportOrgEx", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntSetViewportOrgEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.POINT point);
public static bool SetViewportOrgEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.POINT point)
{
bool retVal = IntSetViewportOrgEx(hDC, x, y, point);
DbgUtil.AssertWin32(retVal, "SetViewportOrgEx([hdc=0x{0:X8}], x=[{1}], y=[{2}], [out point]) failed.", (int)hDC.Handle, x, y);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
public static extern int GetTextMetricsW(HandleRef hDC, [In, Out] ref IntNativeMethods.TEXTMETRIC lptm);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, CharSet = System.Runtime.InteropServices.CharSet.Ansi)]
public static extern int GetTextMetricsA(HandleRef hDC, [In, Out] ref IntNativeMethods.TEXTMETRICA lptm);
public static int GetTextMetrics(HandleRef hDC, ref IntNativeMethods.TEXTMETRIC lptm)
{
int retVal;
if (Marshal.SystemDefaultCharSize == 1)
{
// ANSI
IntNativeMethods.TEXTMETRICA lptmA = new IntNativeMethods.TEXTMETRICA();
retVal = IntUnsafeNativeMethods.GetTextMetricsA(hDC, ref lptmA);
lptm.tmHeight = lptmA.tmHeight;
lptm.tmAscent = lptmA.tmAscent;
lptm.tmDescent = lptmA.tmDescent;
lptm.tmInternalLeading = lptmA.tmInternalLeading;
lptm.tmExternalLeading = lptmA.tmExternalLeading;
lptm.tmAveCharWidth = lptmA.tmAveCharWidth;
lptm.tmMaxCharWidth = lptmA.tmMaxCharWidth;
lptm.tmWeight = lptmA.tmWeight;
lptm.tmOverhang = lptmA.tmOverhang;
lptm.tmDigitizedAspectX = lptmA.tmDigitizedAspectX;
lptm.tmDigitizedAspectY = lptmA.tmDigitizedAspectY;
lptm.tmFirstChar = (char) lptmA.tmFirstChar;
lptm.tmLastChar = (char) lptmA.tmLastChar;
lptm.tmDefaultChar = (char) lptmA.tmDefaultChar;
lptm.tmBreakChar = (char) lptmA.tmBreakChar;
lptm.tmItalic = lptmA.tmItalic;
lptm.tmUnderlined = lptmA.tmUnderlined;
lptm.tmStruckOut = lptmA.tmStruckOut;
lptm.tmPitchAndFamily = lptmA.tmPitchAndFamily;
lptm.tmCharSet = lptmA.tmCharSet;
}
else
{
// Unicode
retVal = IntUnsafeNativeMethods.GetTextMetricsW(hDC, ref lptm);
}
DbgUtil.AssertWin32(retVal != 0, "GetTextMetrics(hdc=[0x{0:X8}], [out TEXTMETRIC] failed.", (int)hDC.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="BeginPath", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntBeginPath(HandleRef hDC);
public static bool BeginPath(HandleRef hDC)
{
bool retVal = IntBeginPath(hDC);
DbgUtil.AssertWin32(retVal, "BeginPath(hdc=[0x{0:X8}]failed.", (int)hDC.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="EndPath", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntEndPath(HandleRef hDC);
public static bool EndPath(HandleRef hDC)
{
bool retVal = IntEndPath(hDC);
DbgUtil.AssertWin32(retVal, "EndPath(hdc=[0x{0:X8}]failed.", (int)hDC.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="StrokePath", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntStrokePath(HandleRef hDC);
public static bool StrokePath(HandleRef hDC)
{
bool retVal = IntStrokePath(hDC);
DbgUtil.AssertWin32(retVal, "StrokePath(hdc=[0x{0:X8}]failed.", (int)hDC.Handle );
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="AngleArc", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntAngleArc(HandleRef hDC, int x, int y, int radius, float startAngle, float endAngle);
public static bool AngleArc(HandleRef hDC, int x, int y, int radius, float startAngle, float endAngle)
{
bool retVal = IntAngleArc(hDC, x, y, radius, startAngle, endAngle);
DbgUtil.AssertWin32(retVal, "AngleArc(hdc=[0x{0:X8}], ...) failed.", (int)hDC.Handle);
return retVal;
}
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="Arc", CharSet=System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntArc(
HandleRef hDC,
int nLeftRect, // x-coord of rectangle's upper-left corner
int nTopRect, // y-coord of rectangle's upper-left corner
int nRightRect, // x-coord of rectangle's lower-right corner
int nBottomRect, // y-coord of rectangle's lower-right corner
int nXStartArc, // x-coord of first radial ending point
int nYStartArc, // y-coord of first radial ending point
int nXEndArc, // x-coord of second radial ending point
int nYEndArc // y-coord of second radial ending point
);
public static bool Arc(
HandleRef hDC,
int nLeftRect, // x-coord of rectangle's upper-left corner
int nTopRect, // y-coord of rectangle's upper-left corner
int nRightRect, // x-coord of rectangle's lower-right corner
int nBottomRect, // y-coord of rectangle's lower-right corner
int nXStartArc, // x-coord of first radial ending point
int nYStartArc, // y-coord of first radial ending point
int nXEndArc, // x-coord of second radial ending point
int nYEndArc // y-coord of second radial ending point
)
{
bool retVal = IntArc(hDC, nLeftRect, nTopRect, nRightRect, nBottomRect, nXStartArc, nYStartArc, nXEndArc, nYEndArc);
DbgUtil.AssertWin32(retVal, "Arc(hdc=[0x{0:X8}], ...) failed.", (int)hDC.Handle);
return retVal;
}
// Misc.
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern int SetTextAlign(HandleRef hDC, int nMode);
[DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint="Ellipse", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public static extern bool IntEllipse(HandleRef hDc, int x1, int y1, int x2, int y2);
public static bool Ellipse(HandleRef hDc, int x1, int y1, int x2, int y2)
{
bool retVal = IntEllipse(hDc, x1, y1, x2, y2);
DbgUtil.AssertWin32(retVal, "Ellipse(hdc=[0x{0:X8}], x1=[{1}], y1=[{2}], x2=[{3}], y2=[{4}]) failed.", (int) hDc.Handle, x1, y1, x2, y2);
return retVal;
}
// SECREVIEW: From MSDN: Using the MultiByteToWideChar/WideCharToMultiByte function incorrectly can compromise the security of your application.
// Calling the WideCharToMultiByte function can easily cause a buffer overrun because the size of the In buffer equals the number
// of WCHARs in the string, while the size of the Out buffer equals the number of bytes. To avoid a buffer overrun, be sure to specify
// a buffer size appropriate for the data type the buffer receives. For more information, see Security Considerations: International Features.
// Always call these functions passing a null destination buffer to get its size and the create the buffer with the exact size.
[DllImport(ExternDll.Kernel32, ExactSpelling=true, CharSet=CharSet.Unicode)]
public static extern int WideCharToMultiByte(int codePage, int flags, [MarshalAs(UnmanagedType.LPWStr)]string wideStr, int chars, [In,Out]byte[] pOutBytes, int bufferBytes, IntPtr defaultChar, IntPtr pDefaultUsed);
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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