The IDirectDrawSurface3::GetBltStatus method obtains the blitter status.
HRESULT GetBltStatus(
DWORD dwFlags
);
| DDGBS_CANBLT | |
| Inquires whether a blit involving this surface can occur immediately, and returns DD_OK if the blit can be completed. | |
| DDGBS_ISBLTDONE | |
| Inquires whether the blit is done, and returns DD_OK if the last blit on this surface has completed. |
If the method succeeds, that means a blitter is present, the return value is DD_OK.
If the method fails, the return value is DDERR_WASSTILLDRAWING if the blitter is busy, DDERR_NOBLTHW if there is no blitter, or one of the following error values:
| DDERR_INVALIDOBJECT |
| DDERR_INVALIDPARAMS |
| DDERR_NOBLTHW |
| DDERR_SURFACEBUSY |
| DDERR_SURFACELOST |
| DDERR_UNSUPPORTED |
| DDERR_WASSTILLDRAWING |