public void RenderRect(D2D1_RECT rect, int width, int height, int conW, int conH)
 {
     if (this._direceHandle != IntPtr.Zero)
     {
         DirectShowImageBase.RenderRect(this._direceHandle, rect, width, height, conW, conH);
     }
 }
 private static extern void RenderRect(IntPtr intPtr, D2D1_RECT rect, int width, int height, int conW, int conH);