typedef struct _PRL_IO_SCREEN_BUFFER_REGION {
  PRL_UINT32 x;
  PRL_UINT32 y;
  PRL_UINT32 width;
  PRL_UINT32 height;
  PRL_UINT32 scaleWidth;
  PRL_UINT32 scaleHeight;
  PRL_UINT32 display;
} PRL_IO_SCREEN_BUFFER_REGION;