private static extern bool _GetCursorPos(out POINT lpPoint);
public static void UpdateLayeredWindow( IntPtr hwnd, SafeDC hdcDst, ref POINT pptDst, ref SIZE psize, SafeDC hdcSrc, ref POINT pptSrc, int crKey, ref BLENDFUNCTION pblend, ULW dwFlags) { if (!_UpdateLayeredWindow(hwnd, hdcDst, ref pptDst, ref psize, hdcSrc, ref pptSrc, crKey, ref pblend, dwFlags)) { HRESULT.ThrowLastError(); } }