Miscellany

typedef struct MFVideoAlphaBitmap {
  BOOL                     GetBitmapFromDC;
  union {
    HDC               hdc;
    IDirect3DSurface9 *pDDs;
  } bitmap;
  MFVideoAlphaBitmapParams params;
} MFVideoAlphaBitmap;


[StructLayout(LayoutKind.Sequential), UnmanagedName("MFVideoAlphaBitmap")]
public class MFVideoAlphaBitmap
{
   public bool GetBitmapFromDC;
   public IntPtr hdc;
   public IntPtr pDDs;
   public MFVideoAlphaBitmapParams paras;
}