public GhostCursor(Visual visual)
{
BitmapSource renderBitmap = CaptureScreen(visual);
BitmapSource actualCursor = CaptureCursor();
byte[] pixels = GetBitmapPixels(actualCursor, (int)actualCursor.Width, (int)actualCursor.Height);
WriteableBitmap wrbmp = new WriteableBitmap(renderBitmap);
wrbmp.WritePixels(new Int32Rect(0, 0, (int)actualCursor.Width, (int)actualCursor.Height), pixels, actualCursor.PixelWidth * actualCursor.Format.BitsPerPixel / 8, 0);
int width = renderBitmap.PixelWidth;
int height = renderBitmap.PixelHeight;
int stride = width * 4;
// unfortunately, this byte array will get placed on the large object heap more than likely ...
pixels = GetBitmapPixels(wrbmp, width, height);
// -height specifies top-down bitmap
BITMAPV5HEADER bInfo = new BITMAPV5HEADER(width, -height, 32);
IntPtr ppvBits = IntPtr.Zero;
BitmapHandle dibSectionHandle = null;
try
{
dibSectionHandle = new BitmapHandle(CreateDIBSection(IntPtr.Zero, ref bInfo, DIB_RGB_COLORS, out ppvBits, IntPtr.Zero, 0));
// copy the pixels into the DIB section now ...
Marshal.Copy(pixels, 0, ppvBits, pixels.Length);
if (!dibSectionHandle.IsInvalid && ppvBits != IntPtr.Zero)
{
CreateCursor(width, height, dibSectionHandle);
}
}
finally
{
if (dibSectionHandle != null)
{
dibSectionHandle.Dispose();
}
}
}
