public void SetRegion(IntPtr hwnd, System.Drawing.Region region)
{
var graphics = System.Drawing.Graphics.FromHwnd(hwnd);
hRgnBlur = region.GetHrgn(graphics);
dwFlags |= DWM_BB.BlurRegion;
graphics.Dispose();
}
/// <summary>
/// Presents the contents of the next buffer in the sequence of back buffers to the screen.
/// </summary>
/// <param name="flags">The flags.</param>
/// <param name="sourceRectangle">The area of the back buffer that should be presented.</param>
/// <param name="destinationRectangle">The area of the front buffer that should receive the result of the presentation.</param>
/// <param name="windowOverride">The destination window whose client area is taken as the target for this presentation.</param>
/// <param name="region">Specifies a region on the back buffer that contains the minimal amount of pixels that need to be updated.</param>
/// <unmanaged>HRESULT IDirect3DSwapChain9::Present([In, Optional] const void* pSourceRect,[InOut, Optional] const void* pDestRect,[In] HWND hDestWindowOverride,[In] const RGNDATA* pDirtyRegion,[In] unsigned int dwFlags)</unmanaged>
public void Present(Present flags, Rectangle sourceRectangle, Rectangle destinationRectangle, IntPtr windowOverride, System.Drawing.Region region)
{
unsafe
{
var graphics = System.Drawing.Graphics.FromHwnd(windowOverride);
var regionPtr = region.GetHrgn(graphics);
graphics.Dispose();
var srcPtr = IntPtr.Zero;
if (sourceRectangle != Rectangle.Empty)
{
srcPtr = new IntPtr(&sourceRectangle);
}
var destPtr = IntPtr.Zero;
if (destinationRectangle != Rectangle.Empty)
{
destPtr = new IntPtr(&destinationRectangle);
}
Present(srcPtr, destPtr, windowOverride, regionPtr, (int)flags);
}
}
public void SetRegion(System.Drawing.Graphics graphics, System.Drawing.Region region)
{
hRgnBlur = region.GetHrgn(graphics);
dwFlags |= BlurBehindFlags.BlurRegion;
}