Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Misc / GDI / SafeNativeMethods.cs / 1 / SafeNativeMethods.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.Text; using System.Runtime.InteropServices; using System.ComponentModel; ////// This is an extract of the System.Drawing IntNativeMethods in the CommonUI tree. /// This is done to be able to compile the GDI code in both assemblies System.Drawing /// and System.Windows.Forms. /// [System.Security.SuppressUnmanagedCodeSecurityAttribute()] #if WINFORMS_PUBLIC_GRAPHICS_LIBRARY public #else internal #endif static partial class IntSafeNativeMethods { public sealed class CommonHandles { static CommonHandles(){} ////// Handle type for enhanced metafiles. /// public static readonly int EMF = System.Internal.HandleCollector.RegisterType("EnhancedMetaFile", 20, 500); ////// Handle type for GDI objects. /// public static readonly int GDI = System.Internal.HandleCollector.RegisterType("GDI", 90, 50); ////// Handle type for HDC's that count against the Win98 limit of five DC's. HDC's /// which are not scarce, such as HDC's for bitmaps, are counted as GDIHANDLE's. /// public static readonly int HDC = System.Internal.HandleCollector.RegisterType("HDC", 100, 2); // wait for 2 dc's before collecting } // Brush. [DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint = "CreateSolidBrush", CharSet = System.Runtime.InteropServices.CharSet.Auto)] private static extern IntPtr IntCreateSolidBrush(int crColor); public static IntPtr CreateSolidBrush(int crColor) { IntPtr hBrush = System.Internal.HandleCollector.Add(IntCreateSolidBrush(crColor), IntSafeNativeMethods.CommonHandles.GDI); DbgUtil.AssertWin32(hBrush != IntPtr.Zero, "IntCreateSolidBrush(color={0}) failed.", crColor); return hBrush; } // Pen. [DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint = "CreatePen", CharSet = System.Runtime.InteropServices.CharSet.Auto)] private static extern IntPtr IntCreatePen(int fnStyle, int nWidth, int crColor); public static IntPtr CreatePen(int fnStyle, int nWidth, int crColor) { IntPtr hPen = System.Internal.HandleCollector.Add(IntCreatePen(fnStyle, nWidth, crColor), IntSafeNativeMethods.CommonHandles.GDI); DbgUtil.AssertWin32(hPen != IntPtr.Zero, "IntCreatePen(style={0}, width={1}, color=[{2}]) failed.", fnStyle, nWidth, crColor); return hPen; } [DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, EntryPoint = "ExtCreatePen", CharSet = System.Runtime.InteropServices.CharSet.Auto)] private static extern IntPtr IntExtCreatePen(int fnStyle, int dwWidth, IntNativeMethods.LOGBRUSH lplb, int dwStyleCount, [MarshalAs(UnmanagedType.LPArray)] int[] lpStyle); public static IntPtr ExtCreatePen(int fnStyle, int dwWidth, IntNativeMethods.LOGBRUSH lplb, int dwStyleCount, int[] lpStyle) { IntPtr hPen = System.Internal.HandleCollector.Add(IntExtCreatePen(fnStyle, dwWidth, lplb, dwStyleCount, lpStyle), IntSafeNativeMethods.CommonHandles.GDI); DbgUtil.AssertWin32(hPen != IntPtr.Zero, "IntExtCreatePen(style={0}, width={1}, brush={2}, styleCount={3}, styles={4}) failed.", fnStyle, dwWidth, lplb, dwStyleCount, lpStyle); return hPen; } // Region [DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling=true, EntryPoint="CreateRectRgn", CharSet=System.Runtime.InteropServices.CharSet.Auto)] public static extern IntPtr IntCreateRectRgn(int x1, int y1, int x2, int y2); public static IntPtr CreateRectRgn(int x1, int y1, int x2, int y2) { IntPtr hRgn = System.Internal.HandleCollector.Add(IntCreateRectRgn(x1, y1, x2, y2), IntSafeNativeMethods.CommonHandles.GDI); DbgUtil.AssertWin32(hRgn != IntPtr.Zero, "IntCreateRectRgn([x1={0}, y1={1}, x2={2}, y2={3}]) failed.", x1, y1, x2, y2); return hRgn; } // Misc. [DllImport(ExternDll.Kernel32, SetLastError=true, CharSet=System.Runtime.InteropServices.CharSet.Auto)] public static extern int GetUserDefaultLCID(); [DllImport(ExternDll.Gdi32, SetLastError=true, ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)] public static extern bool GdiFlush(); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DbTransaction.cs
- StringStorage.cs
- DurableInstance.cs
- OpenFileDialog.cs
- Filter.cs
- Select.cs
- HttpContextServiceHost.cs
- XmlSchemaAppInfo.cs
- ToolboxItemAttribute.cs
- AuthorizationSection.cs
- DataRowComparer.cs
- hresults.cs
- WebPartCloseVerb.cs
- EventDescriptor.cs
- cryptoapiTransform.cs
- ValidationRuleCollection.cs
- ObjectHandle.cs
- SoundPlayer.cs
- Rule.cs
- SafePEFileHandle.cs
- X509CertificateChain.cs
- ThreadInterruptedException.cs
- StrongNameUtility.cs
- ClientRuntimeConfig.cs
- MemoryMappedView.cs
- UTF8Encoding.cs
- dbdatarecord.cs
- TextPointerBase.cs
- ItemMap.cs
- ApplicationHost.cs
- StickyNoteHelper.cs
- FileLoadException.cs
- ModelService.cs
- XmlHierarchyData.cs
- Timeline.cs
- SecureEnvironment.cs
- EndpointBehaviorElementCollection.cs
- Classification.cs
- GridViewAutomationPeer.cs
- GCHandleCookieTable.cs
- BevelBitmapEffect.cs
- SerializationAttributes.cs
- BaseConfigurationRecord.cs
- safex509handles.cs
- ProfilePropertySettings.cs
- Avt.cs
- AttachedAnnotation.cs
- EpmHelper.cs
- GroupBox.cs
- RuleSet.cs
- CommonDialog.cs
- MatrixTransform3D.cs
- ListItemConverter.cs
- ChangeBlockUndoRecord.cs
- DataGridViewSortCompareEventArgs.cs
- MexTcpBindingCollectionElement.cs
- DbProviderServices.cs
- Attributes.cs
- SparseMemoryStream.cs
- OdbcFactory.cs
- Assert.cs
- BitmapMetadataEnumerator.cs
- TypeInfo.cs
- DynamicMetaObject.cs
- RubberbandSelector.cs
- BrowserTree.cs
- RenderData.cs
- UriTemplateClientFormatter.cs
- DataFieldCollectionEditor.cs
- InternalsVisibleToAttribute.cs
- WeakEventManager.cs
- DataServiceRequestArgs.cs
- KnownTypesProvider.cs
- DateTimeUtil.cs
- ProjectionQueryOptionExpression.cs
- ObjectQuery.cs
- _LazyAsyncResult.cs
- WebPartVerbsEventArgs.cs
- PointUtil.cs
- EntityWithChangeTrackerStrategy.cs
- xsdvalidator.cs
- Geometry3D.cs
- ImpersonateTokenRef.cs
- ItemCollection.cs
- MonikerUtility.cs
- UriTemplatePathSegment.cs
- TableItemStyle.cs
- NetNamedPipeSecurityMode.cs
- ConnectionProviderAttribute.cs
- MimeTypeAttribute.cs
- TimerElapsedEvenArgs.cs
- TagElement.cs
- ToolboxComponentsCreatingEventArgs.cs
- TemplateParser.cs
- VBCodeProvider.cs
- LifetimeServices.cs
- KeyConstraint.cs
- CodeAccessPermission.cs
- GridViewRow.cs
- TreeNodeCollectionEditorDialog.cs