| DirectX SDK | 
The DirectDrawSurface7.GetFlipStatus method indicates whether the surface has finished its flipping process.
object.GetFlipStatus(flags As CONST_DDGFSFLAGS) As Long
If the method succeeds, depending on which constant is specified in the flags parameter, 0 is returned for False and nonzero for True.
If the method fails, it raises an error, and Err.Number can be set to DDERR_WASSTILLDRAWING if the surface has not finished its flipping process, or one of the following values:
| DDERR_INVALIDOBJECT | 
| DDERR_INVALIDPARAMS | 
| DDERR_INVALIDSURFACETYPE | 
| DDERR_SURFACEBUSY | 
| DDERR_SURFACELOST | 
| DD_OK | 
| DDERR_UNSUPPORTED |