Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / UIAutomation / Win32Providers / MS / Internal / AutomationProxies / WindowsSlider.cs / 1 / WindowsSlider.cs
//----------------------------------------------------------------------------
//
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//
//
// Description: Slider Proxy
//
// History:
// Kris Krueger (krisk) Created
// a-jeanp Entirely revised
//
//---------------------------------------------------------------------------
using System;
using System.Text;
using System.Collections;
using System.Runtime.InteropServices;
using System.ComponentModel;
using System.Windows.Automation;
using System.Windows.Automation.Provider;
using System.Windows;
using MS.Win32;
namespace MS.Internal.AutomationProxies
{
class WindowsSlider: ProxyHwnd, IRangeValueProvider
{
// -----------------------------------------------------
//
// Constructors
//
// -----------------------------------------------------
#region Constructors
WindowsSlider (IntPtr hwnd, ProxyFragment parent, int item)
: base (hwnd, parent, item )
{
_fHorizontal = IsHorizontalSlider ();
_fIsKeyboardFocusable = true;
// Set the strings to return properly the properties.
_cControlType = ControlType.Slider;
// support for events
_createOnEvent = new WinEventTracker.ProxyRaiseEvents (RaiseEvents);
}
#endregion
#region Proxy Create
// Static Create method called by UIAutomation to create this proxy.
// returns null if unsuccessful
internal static IRawElementProviderSimple Create(IntPtr hwnd, int idChild, int idObject)
{
return Create(hwnd, idChild);
}
private static IRawElementProviderSimple Create(IntPtr hwnd, int idChild)
{
// Something is wrong if idChild is not zero
if (idChild != 0)
{
System.Diagnostics.Debug.Assert (idChild == 0, "Invalid Child Id, idChild != 0");
throw new ArgumentOutOfRangeException("idChild", idChild, SR.Get(SRID.ShouldBeZero));
}
return new WindowsSlider(hwnd, null, idChild);
}
// Static Create method called by the event tracker system
internal static void RaiseEvents (IntPtr hwnd, int eventId, object idProp, int idObject, int idChild)
{
if (idObject != NativeMethods.OBJID_VSCROLL && idObject != NativeMethods.OBJID_HSCROLL)
{
WindowsSlider wtv = new WindowsSlider (hwnd, null, 0);
wtv.DispatchEvents (eventId, idProp, idObject, idChild);
}
}
#endregion
//------------------------------------------------------
//
// Patterns Implementation
//
//-----------------------------------------------------
#region ProxySimple Interface
// Returns a pattern interface if supported.
internal override object GetPatternProvider (AutomationPattern iid)
{
return iid == RangeValuePattern.Pattern ? this : null;
}
// Process all the Logical and Raw Element Properties
internal override object GetElementProperty(AutomationProperty idProp)
{
if (idProp == AutomationElement.OrientationProperty)
{
return IsVerticalSlider() ? OrientationType.Vertical : OrientationType.Horizontal;
}
return base.GetElementProperty(idProp);
}
#endregion
#region ProxyFragment Interface
// Returns the next sibling element in the raw hierarchy.
// Peripheral controls have always negative values.
// Returns null if no next child
internal override ProxySimple GetNextSibling (ProxySimple child)
{
SItem item = (SItem)(child._item + 1);
return item <= SItem.LargeIncrement ? CreateSliderItem (item) : null;
}
// Returns the previous sibling element in the raw hierarchy.
// Peripheral controls have always negative values.
// Returns null is no previous
internal override ProxySimple GetPreviousSibling (ProxySimple child)
{
SItem item = (SItem)(child._item - 1);
return item >= SItem.LargeDecrement ? CreateSliderItem (item) : null;
}
// Returns the first child element in the raw hierarchy.
internal override ProxySimple GetFirstChild ()
{
return CreateSliderItem (SItem.LargeDecrement);
}
// Returns the last child element in the raw hierarchy.
internal override ProxySimple GetLastChild ()
{
return CreateSliderItem (SItem.LargeIncrement);
}
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint (int x, int y)
{
for (SItem item = SItem.LargeDecrement; (int) item <= (int) SItem.LargeIncrement; item = (SItem) ((int) item + 1))
{
NativeMethods.Win32Rect rc = new NativeMethods.Win32Rect (SliderItem.GetBoundingRectangle (_hwnd, item, _fHorizontal));
if (Misc.PtInRect(ref rc, x, y))
{
return CreateSliderItem (item);
}
}
return null;
}
#endregion
#region RangeValue Pattern
// Sets a new position for the Slider.
void IRangeValueProvider.SetValue (double val)
{
// Make sure that the control is enabled
if (!SafeNativeMethods.IsWindowEnabled(_hwnd))
{
throw new ElementNotEnabledException();
}
// bug# 15533, Set value does not accept float
int newVal = Convert.ToInt32 (val);
SetSliderValue (newVal);
// bug# 15531, Set value of slider control needs to notify parent of change
IntPtr parent = Misc.GetParent(_hwnd);
if (IntPtr.Zero != parent)
{
// Horizontal sliders update parent with WM_HSCROLL, vertical with WM_VSCROLL
int msg = IsHorizontalSlider () ? NativeMethods.WM_HSCROLL : NativeMethods.WM_VSCROLL;
// New position
int wParam = (newVal << 16) | NativeMethods.SB_THUMBPOSITION;
// Notify parent of new position
Misc.ProxySendMessage(parent, msg, new IntPtr(wParam), IntPtr.Zero);
}
}
// Request to get the value that this UI element is representing in a native format
double IRangeValueProvider.Value
{
get
{
return (double)GetSliderValue ();
}
}
bool IRangeValueProvider.IsReadOnly
{
get
{
return false;
}
}
double IRangeValueProvider.Maximum
{
get
{
return (double)Max;
}
}
double IRangeValueProvider.Minimum
{
get
{
return (double)Min;
}
}
double IRangeValueProvider.SmallChange
{
get
{
return (double)LineSize;
}
}
double IRangeValueProvider.LargeChange
{
get
{
double pageSize = (double)PageSize;
return PageSize != 0.0 ? pageSize : (double)LineSize;
}
}
#endregion
// ------------------------------------------------------
//
// Private methods
//
// ------------------------------------------------------
#region Private Methods
private ProxySimple CreateSliderItem (SItem item)
{
return new SliderItem (_hwnd, this, (int) item, _fHorizontal);
}
private bool IsHorizontalSlider ()
{
return (!IsVerticalSlider ());
}
private bool IsVerticalSlider ()
{
return (Misc.IsBitSet(WindowStyle, NativeMethods.TBS_VERT));
}
private int GetSliderValue ()
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETPOS, IntPtr.Zero, IntPtr.Zero);
}
private void SetSliderValue (int val)
{
// check for the range
if (val > Max)
{
throw new ArgumentOutOfRangeException("value", val, SR.Get(SRID.RangeValueMax));
}
else if (val < Min)
{
throw new ArgumentOutOfRangeException("value", val, SR.Get(SRID.RangeValueMin));
}
Misc.ProxySendMessage(_hwnd, NativeMethods.TBM_SETPOS, new IntPtr(1), new IntPtr(val));
}
private int LineSize
{
get
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETLINESIZE, IntPtr.Zero, IntPtr.Zero);
}
}
private int Min
{
get
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETRANGEMIN, IntPtr.Zero, IntPtr.Zero);
}
}
private int Max
{
get
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETRANGEMAX, IntPtr.Zero, IntPtr.Zero);
}
}
private int PageSize
{
get
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETPAGESIZE, IntPtr.Zero, IntPtr.Zero);
}
}
#endregion
// -----------------------------------------------------
//
// Private Fields
//
// ------------------------------------------------------
#region Private Fields
private bool _fHorizontal;
// Index value used to represent the container itself.
private enum SItem
{
LargeDecrement = 0,
Thumb = 1,
LargeIncrement = 2
}
#endregion
// -----------------------------------------------------
//
// SliderItem Private Class
//
//-----------------------------------------------------
#region SliderItem
class SliderItem: ProxySimple, IInvokeProvider
{
// -----------------------------------------------------
//
// Constructors
//
// ------------------------------------------------------
#region Constructors
internal SliderItem (IntPtr hwnd, ProxyFragment parent, int item, bool fHorizontal)
: base (hwnd, parent, item )
{
_fHorizontal = fHorizontal;
// Set the strings to return properly the properties.
_fIsContent = false;
_sAutomationId = _asAutomationId[item];
if ((WindowsSlider.SItem)item == WindowsSlider.SItem.Thumb)
{
_cControlType = ControlType.Thumb;
}
else
{
_cControlType = ControlType.Button;
}
}
#endregion
//-----------------------------------------------------
//
// Patterns Implementation
//
//------------------------------------------------------
#region ProxySimple Interface
// Returns a pattern interface if supported.
internal override object GetPatternProvider (AutomationPattern iid)
{
return _item != (int) WindowsSlider.SItem.Thumb && iid == InvokePattern.Pattern ? this : null;
}
// Gets the bounding rectangle for this element
internal override Rect BoundingRectangle
{
get
{
return GetBoundingRectangle (_hwnd, (WindowsSlider.SItem) _item, _fHorizontal);
}
}
//Gets the controls help text
internal override string HelpText
{
get
{
IntPtr hwndToolTip = Misc.ProxySendMessage(_hwnd, NativeMethods.TBM_GETTOOLTIPS, IntPtr.Zero, IntPtr.Zero);
return Misc.GetItemToolTipText(_hwnd, hwndToolTip, 0);
}
}
//Gets the localized name
internal override string LocalizedName
{
get
{
return ST.Get(_asNames[_item]);
}
}
#endregion
#region Invoke Pattern
// Same as a click on the large or smale increment
void IInvokeProvider.Invoke ()
{
// Make sure that the control is enabled
if (!SafeNativeMethods.IsWindowEnabled(_hwnd))
{
throw new ElementNotEnabledException();
}
// Check that button can be clicked (button enabled and not hidden)
// This state could change anytime so success is not guaranteed
IntPtr wParam = (IntPtr) (_item == (int) WindowsSlider.SItem.LargeDecrement ? NativeMethods.VK_PRIOR : NativeMethods.VK_NEXT);
Misc.ProxySendMessage(_hwnd, NativeMethods.WM_KEYDOWN, wParam, IntPtr.Zero);
}
#endregion
// ------------------------------------------------------
//
// Internal Methods
//
// -----------------------------------------------------
#region Internal Methods
// Returns the bounding rectangle of the control.
internal static Rect GetBoundingRectangle (IntPtr hwnd, WindowsSlider.SItem item, bool fHorizontal)
{
NativeMethods.Win32Rect rcChannel = new NativeMethods.Win32Rect ();
rcChannel.left = rcChannel.right = rcChannel.top = rcChannel.bottom = 1000;
unsafe
{
XSendMessage.XSend(hwnd, NativeMethods.TBM_GETCHANNELRECT, IntPtr.Zero, new IntPtr(&rcChannel), Marshal.SizeOf(rcChannel.GetType()), XSendMessage.ErrorValue.NoCheck);
}
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rcChannel, 2))
{
return Rect.Empty;
}
NativeMethods.Win32Rect rcThumb = new NativeMethods.Win32Rect();
rcThumb.left = rcThumb.right = rcThumb.top = rcThumb.bottom = 1000;
unsafe
{
XSendMessage.XSend(hwnd, NativeMethods.TBM_GETTHUMBRECT, IntPtr.Zero, new IntPtr(&rcThumb), Marshal.SizeOf(rcThumb.GetType()), XSendMessage.ErrorValue.NoCheck);
}
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rcThumb, 2))
{
return Rect.Empty;
}
if (fHorizontal)
{
// When WS_EX_RTLREADING is set swap the increment and decrement bars.
if (Misc.IsLayoutRTL(hwnd))
{
if (item == SItem.LargeDecrement)
{
item = SItem.LargeIncrement;
}
else if (item == SItem.LargeIncrement)
{
item = SItem.LargeDecrement;
}
}
switch (item)
{
case WindowsSlider.SItem.LargeDecrement :
return new Rect (rcChannel.left, rcChannel.top, rcThumb.left - rcChannel.left, rcChannel.bottom - rcChannel.top);
case WindowsSlider.SItem.Thumb :
return new Rect (rcThumb.left, rcThumb.top, rcThumb.right - rcThumb.left, rcThumb.bottom - rcThumb.top);
case WindowsSlider.SItem.LargeIncrement :
return new Rect (rcThumb.right, rcChannel.top, rcChannel.right - rcThumb.right, rcChannel.bottom - rcChannel.top);
}
}
else
{
int dx = rcChannel.bottom - rcChannel.top;
int dy = rcChannel.right - rcChannel.left;
switch (item)
{
case WindowsSlider.SItem.LargeDecrement :
return new Rect (rcChannel.left, rcChannel.top, dx, rcThumb.top - rcChannel.top);
case WindowsSlider.SItem.Thumb :
return new Rect (rcThumb.left, rcThumb.top, rcThumb.right - rcThumb.left, rcThumb.bottom - rcThumb.top);
case WindowsSlider.SItem.LargeIncrement :
return new Rect (rcChannel.left, rcThumb.bottom, dx, dy);
}
}
return Rect.Empty;
}
#endregion
// ------------------------------------------------------
//
// Private Fields
//
// -----------------------------------------------------
#region Private Fields
private bool _fHorizontal;
private STID [] _asNames = {
STID.LocalizedNameWindowsSliderItemBackByLargeAmount,
STID.LocalizedNameWindowsSliderItemThumb,
STID.LocalizedNameWindowsSliderItemForwardByLargeAmount
};
private static string[] _asAutomationId = new string[] {
"LargeDecrement", "Thumb", "LargeIncrement" // This string is a non-localizable string
};
#endregion
}
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------------------
//
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//
//
// Description: Slider Proxy
//
// History:
// Kris Krueger (krisk) Created
// a-jeanp Entirely revised
//
//---------------------------------------------------------------------------
using System;
using System.Text;
using System.Collections;
using System.Runtime.InteropServices;
using System.ComponentModel;
using System.Windows.Automation;
using System.Windows.Automation.Provider;
using System.Windows;
using MS.Win32;
namespace MS.Internal.AutomationProxies
{
class WindowsSlider: ProxyHwnd, IRangeValueProvider
{
// -----------------------------------------------------
//
// Constructors
//
// -----------------------------------------------------
#region Constructors
WindowsSlider (IntPtr hwnd, ProxyFragment parent, int item)
: base (hwnd, parent, item )
{
_fHorizontal = IsHorizontalSlider ();
_fIsKeyboardFocusable = true;
// Set the strings to return properly the properties.
_cControlType = ControlType.Slider;
// support for events
_createOnEvent = new WinEventTracker.ProxyRaiseEvents (RaiseEvents);
}
#endregion
#region Proxy Create
// Static Create method called by UIAutomation to create this proxy.
// returns null if unsuccessful
internal static IRawElementProviderSimple Create(IntPtr hwnd, int idChild, int idObject)
{
return Create(hwnd, idChild);
}
private static IRawElementProviderSimple Create(IntPtr hwnd, int idChild)
{
// Something is wrong if idChild is not zero
if (idChild != 0)
{
System.Diagnostics.Debug.Assert (idChild == 0, "Invalid Child Id, idChild != 0");
throw new ArgumentOutOfRangeException("idChild", idChild, SR.Get(SRID.ShouldBeZero));
}
return new WindowsSlider(hwnd, null, idChild);
}
// Static Create method called by the event tracker system
internal static void RaiseEvents (IntPtr hwnd, int eventId, object idProp, int idObject, int idChild)
{
if (idObject != NativeMethods.OBJID_VSCROLL && idObject != NativeMethods.OBJID_HSCROLL)
{
WindowsSlider wtv = new WindowsSlider (hwnd, null, 0);
wtv.DispatchEvents (eventId, idProp, idObject, idChild);
}
}
#endregion
//------------------------------------------------------
//
// Patterns Implementation
//
//-----------------------------------------------------
#region ProxySimple Interface
// Returns a pattern interface if supported.
internal override object GetPatternProvider (AutomationPattern iid)
{
return iid == RangeValuePattern.Pattern ? this : null;
}
// Process all the Logical and Raw Element Properties
internal override object GetElementProperty(AutomationProperty idProp)
{
if (idProp == AutomationElement.OrientationProperty)
{
return IsVerticalSlider() ? OrientationType.Vertical : OrientationType.Horizontal;
}
return base.GetElementProperty(idProp);
}
#endregion
#region ProxyFragment Interface
// Returns the next sibling element in the raw hierarchy.
// Peripheral controls have always negative values.
// Returns null if no next child
internal override ProxySimple GetNextSibling (ProxySimple child)
{
SItem item = (SItem)(child._item + 1);
return item <= SItem.LargeIncrement ? CreateSliderItem (item) : null;
}
// Returns the previous sibling element in the raw hierarchy.
// Peripheral controls have always negative values.
// Returns null is no previous
internal override ProxySimple GetPreviousSibling (ProxySimple child)
{
SItem item = (SItem)(child._item - 1);
return item >= SItem.LargeDecrement ? CreateSliderItem (item) : null;
}
// Returns the first child element in the raw hierarchy.
internal override ProxySimple GetFirstChild ()
{
return CreateSliderItem (SItem.LargeDecrement);
}
// Returns the last child element in the raw hierarchy.
internal override ProxySimple GetLastChild ()
{
return CreateSliderItem (SItem.LargeIncrement);
}
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint (int x, int y)
{
for (SItem item = SItem.LargeDecrement; (int) item <= (int) SItem.LargeIncrement; item = (SItem) ((int) item + 1))
{
NativeMethods.Win32Rect rc = new NativeMethods.Win32Rect (SliderItem.GetBoundingRectangle (_hwnd, item, _fHorizontal));
if (Misc.PtInRect(ref rc, x, y))
{
return CreateSliderItem (item);
}
}
return null;
}
#endregion
#region RangeValue Pattern
// Sets a new position for the Slider.
void IRangeValueProvider.SetValue (double val)
{
// Make sure that the control is enabled
if (!SafeNativeMethods.IsWindowEnabled(_hwnd))
{
throw new ElementNotEnabledException();
}
// bug# 15533, Set value does not accept float
int newVal = Convert.ToInt32 (val);
SetSliderValue (newVal);
// bug# 15531, Set value of slider control needs to notify parent of change
IntPtr parent = Misc.GetParent(_hwnd);
if (IntPtr.Zero != parent)
{
// Horizontal sliders update parent with WM_HSCROLL, vertical with WM_VSCROLL
int msg = IsHorizontalSlider () ? NativeMethods.WM_HSCROLL : NativeMethods.WM_VSCROLL;
// New position
int wParam = (newVal << 16) | NativeMethods.SB_THUMBPOSITION;
// Notify parent of new position
Misc.ProxySendMessage(parent, msg, new IntPtr(wParam), IntPtr.Zero);
}
}
// Request to get the value that this UI element is representing in a native format
double IRangeValueProvider.Value
{
get
{
return (double)GetSliderValue ();
}
}
bool IRangeValueProvider.IsReadOnly
{
get
{
return false;
}
}
double IRangeValueProvider.Maximum
{
get
{
return (double)Max;
}
}
double IRangeValueProvider.Minimum
{
get
{
return (double)Min;
}
}
double IRangeValueProvider.SmallChange
{
get
{
return (double)LineSize;
}
}
double IRangeValueProvider.LargeChange
{
get
{
double pageSize = (double)PageSize;
return PageSize != 0.0 ? pageSize : (double)LineSize;
}
}
#endregion
// ------------------------------------------------------
//
// Private methods
//
// ------------------------------------------------------
#region Private Methods
private ProxySimple CreateSliderItem (SItem item)
{
return new SliderItem (_hwnd, this, (int) item, _fHorizontal);
}
private bool IsHorizontalSlider ()
{
return (!IsVerticalSlider ());
}
private bool IsVerticalSlider ()
{
return (Misc.IsBitSet(WindowStyle, NativeMethods.TBS_VERT));
}
private int GetSliderValue ()
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETPOS, IntPtr.Zero, IntPtr.Zero);
}
private void SetSliderValue (int val)
{
// check for the range
if (val > Max)
{
throw new ArgumentOutOfRangeException("value", val, SR.Get(SRID.RangeValueMax));
}
else if (val < Min)
{
throw new ArgumentOutOfRangeException("value", val, SR.Get(SRID.RangeValueMin));
}
Misc.ProxySendMessage(_hwnd, NativeMethods.TBM_SETPOS, new IntPtr(1), new IntPtr(val));
}
private int LineSize
{
get
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETLINESIZE, IntPtr.Zero, IntPtr.Zero);
}
}
private int Min
{
get
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETRANGEMIN, IntPtr.Zero, IntPtr.Zero);
}
}
private int Max
{
get
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETRANGEMAX, IntPtr.Zero, IntPtr.Zero);
}
}
private int PageSize
{
get
{
return Misc.ProxySendMessageInt(_hwnd, NativeMethods.TBM_GETPAGESIZE, IntPtr.Zero, IntPtr.Zero);
}
}
#endregion
// -----------------------------------------------------
//
// Private Fields
//
// ------------------------------------------------------
#region Private Fields
private bool _fHorizontal;
// Index value used to represent the container itself.
private enum SItem
{
LargeDecrement = 0,
Thumb = 1,
LargeIncrement = 2
}
#endregion
// -----------------------------------------------------
//
// SliderItem Private Class
//
//-----------------------------------------------------
#region SliderItem
class SliderItem: ProxySimple, IInvokeProvider
{
// -----------------------------------------------------
//
// Constructors
//
// ------------------------------------------------------
#region Constructors
internal SliderItem (IntPtr hwnd, ProxyFragment parent, int item, bool fHorizontal)
: base (hwnd, parent, item )
{
_fHorizontal = fHorizontal;
// Set the strings to return properly the properties.
_fIsContent = false;
_sAutomationId = _asAutomationId[item];
if ((WindowsSlider.SItem)item == WindowsSlider.SItem.Thumb)
{
_cControlType = ControlType.Thumb;
}
else
{
_cControlType = ControlType.Button;
}
}
#endregion
//-----------------------------------------------------
//
// Patterns Implementation
//
//------------------------------------------------------
#region ProxySimple Interface
// Returns a pattern interface if supported.
internal override object GetPatternProvider (AutomationPattern iid)
{
return _item != (int) WindowsSlider.SItem.Thumb && iid == InvokePattern.Pattern ? this : null;
}
// Gets the bounding rectangle for this element
internal override Rect BoundingRectangle
{
get
{
return GetBoundingRectangle (_hwnd, (WindowsSlider.SItem) _item, _fHorizontal);
}
}
//Gets the controls help text
internal override string HelpText
{
get
{
IntPtr hwndToolTip = Misc.ProxySendMessage(_hwnd, NativeMethods.TBM_GETTOOLTIPS, IntPtr.Zero, IntPtr.Zero);
return Misc.GetItemToolTipText(_hwnd, hwndToolTip, 0);
}
}
//Gets the localized name
internal override string LocalizedName
{
get
{
return ST.Get(_asNames[_item]);
}
}
#endregion
#region Invoke Pattern
// Same as a click on the large or smale increment
void IInvokeProvider.Invoke ()
{
// Make sure that the control is enabled
if (!SafeNativeMethods.IsWindowEnabled(_hwnd))
{
throw new ElementNotEnabledException();
}
// Check that button can be clicked (button enabled and not hidden)
// This state could change anytime so success is not guaranteed
IntPtr wParam = (IntPtr) (_item == (int) WindowsSlider.SItem.LargeDecrement ? NativeMethods.VK_PRIOR : NativeMethods.VK_NEXT);
Misc.ProxySendMessage(_hwnd, NativeMethods.WM_KEYDOWN, wParam, IntPtr.Zero);
}
#endregion
// ------------------------------------------------------
//
// Internal Methods
//
// -----------------------------------------------------
#region Internal Methods
// Returns the bounding rectangle of the control.
internal static Rect GetBoundingRectangle (IntPtr hwnd, WindowsSlider.SItem item, bool fHorizontal)
{
NativeMethods.Win32Rect rcChannel = new NativeMethods.Win32Rect ();
rcChannel.left = rcChannel.right = rcChannel.top = rcChannel.bottom = 1000;
unsafe
{
XSendMessage.XSend(hwnd, NativeMethods.TBM_GETCHANNELRECT, IntPtr.Zero, new IntPtr(&rcChannel), Marshal.SizeOf(rcChannel.GetType()), XSendMessage.ErrorValue.NoCheck);
}
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rcChannel, 2))
{
return Rect.Empty;
}
NativeMethods.Win32Rect rcThumb = new NativeMethods.Win32Rect();
rcThumb.left = rcThumb.right = rcThumb.top = rcThumb.bottom = 1000;
unsafe
{
XSendMessage.XSend(hwnd, NativeMethods.TBM_GETTHUMBRECT, IntPtr.Zero, new IntPtr(&rcThumb), Marshal.SizeOf(rcThumb.GetType()), XSendMessage.ErrorValue.NoCheck);
}
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rcThumb, 2))
{
return Rect.Empty;
}
if (fHorizontal)
{
// When WS_EX_RTLREADING is set swap the increment and decrement bars.
if (Misc.IsLayoutRTL(hwnd))
{
if (item == SItem.LargeDecrement)
{
item = SItem.LargeIncrement;
}
else if (item == SItem.LargeIncrement)
{
item = SItem.LargeDecrement;
}
}
switch (item)
{
case WindowsSlider.SItem.LargeDecrement :
return new Rect (rcChannel.left, rcChannel.top, rcThumb.left - rcChannel.left, rcChannel.bottom - rcChannel.top);
case WindowsSlider.SItem.Thumb :
return new Rect (rcThumb.left, rcThumb.top, rcThumb.right - rcThumb.left, rcThumb.bottom - rcThumb.top);
case WindowsSlider.SItem.LargeIncrement :
return new Rect (rcThumb.right, rcChannel.top, rcChannel.right - rcThumb.right, rcChannel.bottom - rcChannel.top);
}
}
else
{
int dx = rcChannel.bottom - rcChannel.top;
int dy = rcChannel.right - rcChannel.left;
switch (item)
{
case WindowsSlider.SItem.LargeDecrement :
return new Rect (rcChannel.left, rcChannel.top, dx, rcThumb.top - rcChannel.top);
case WindowsSlider.SItem.Thumb :
return new Rect (rcThumb.left, rcThumb.top, rcThumb.right - rcThumb.left, rcThumb.bottom - rcThumb.top);
case WindowsSlider.SItem.LargeIncrement :
return new Rect (rcChannel.left, rcThumb.bottom, dx, dy);
}
}
return Rect.Empty;
}
#endregion
// ------------------------------------------------------
//
// Private Fields
//
// -----------------------------------------------------
#region Private Fields
private bool _fHorizontal;
private STID [] _asNames = {
STID.LocalizedNameWindowsSliderItemBackByLargeAmount,
STID.LocalizedNameWindowsSliderItemThumb,
STID.LocalizedNameWindowsSliderItemForwardByLargeAmount
};
private static string[] _asAutomationId = new string[] {
"LargeDecrement", "Thumb", "LargeIncrement" // This string is a non-localizable string
};
#endregion
}
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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- EmptyTextWriter.cs
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