protected void UpdateClipRegion(ClipRegionChangeType regionChangeType = ClipRegionChangeType.FromPropertyChange)
{
var hwndSource = (HwndSource)PresentationSource.FromVisual(this);
if (hwndSource == null)
{
return;
}
RECT lpRect;
NativeMethods.GetWindowRect(hwndSource.Handle, out lpRect);
var windowPlacement = NativeMethods.GetWindowPlacement(hwndSource.Handle);
UpdateClipRegion(hwndSource.Handle, windowPlacement, regionChangeType, lpRect);
}
private static RECT GetClientRectRelativeToWindowRect(IntPtr hwnd)
{
RECT lpRect1;
NativeMethods.GetWindowRect(hwnd, out lpRect1);
RECT lpRect2;
NativeMethods.GetClientRect(hwnd, out lpRect2);
var point = new Core.Platform.Point {
X = 0, Y = 0
};
NativeMethods.ClientToScreen(hwnd, ref point);
lpRect2.Offset(point.X - lpRect1.Left, point.Y - lpRect1.Top);
return(lpRect2);
}
public void UpdateWindowPos()
{
var targetWindowHandle = TargetWindowHandle;
RECT lpRect;
NativeMethods.GetWindowRect(targetWindowHandle, out lpRect);
NativeMethods.GetWindowPlacement(targetWindowHandle);
if (!IsVisible)
{
return;
}
switch (_direction)
{
case Dock.Left:
Border.Height = lpRect.Height;
Left = lpRect.Left - 9;
Top = lpRect.Top - 9;
Width = 9;
Height = lpRect.Height + 18;
break;
case Dock.Top:
Border.Width = lpRect.Width + 2;
Left = lpRect.Left - 9;
Top = lpRect.Top - 9;
Width = lpRect.Width + 18;
Height = 9;
break;
case Dock.Right:
Border.Height = lpRect.Height;
Left = lpRect.Right;
Top = lpRect.Top - 9;
Width = 9;
Height = lpRect.Height + 18;
break;
default:
Border.Width = lpRect.Width + 2;
Left = lpRect.Left - 9;
Top = lpRect.Bottom;
Width = lpRect.Width + 18;
Height = 9;
break;
}
}
private Cursor GetCursor(IntPtr lParam)
{
var xlParam = NativeMethods.GetXlParam(lParam.ToInt32());
var ylParam = NativeMethods.GetYlParam(lParam.ToInt32());
RECT lpRect;
NativeMethods.GetWindowRect(new WindowInteropHelper(this).Handle, out lpRect);
switch (_direction)
{
case Dock.Left:
if (ylParam - 18 < lpRect.Top)
{
return(Cursors.SizeNWSE);
}
return(ylParam + 18 > lpRect.Bottom ? Cursors.SizeNESW : Cursors.SizeWE);
case Dock.Top:
if (xlParam - 18 < lpRect.Left)
{
return(Cursors.SizeNWSE);
}
return(xlParam + 18 > lpRect.Right ? Cursors.SizeNESW : Cursors.SizeNS);
case Dock.Right:
if (ylParam - 18 < lpRect.Top)
{
return(Cursors.SizeNESW);
}
return(ylParam + 18 > lpRect.Bottom ? Cursors.SizeNWSE : Cursors.SizeWE);
default:
if (xlParam - 18 < lpRect.Left)
{
return(Cursors.SizeNESW);
}
return(xlParam + 18 > lpRect.Right ? Cursors.SizeNWSE : Cursors.SizeNS);
}
}