IDirectDraw::GetVerticalBlankStatus
This method retrieves the status of the vertical blank.
HRESULT GetVerticalBlankStatus(
LPBOOL lpbIsInVB
);
Parameters
- lpbIsInVB
Address of the variable that will be filled with the status of the vertical blank. This parameter is TRUE if a vertical blank is occurring, and FALSE otherwise.
Return Values
If the method succeeds, the return value is DD_OK.
If the method fails, the return value may be one of the following error values:
| DDERR_INVALIDOBJECT |
| DDERR_INVALIDPARAMS |
Remarks
To synchronize with the vertical blank, use the IDirectDraw::WaitForVerticalBlank method.
Requirements
Pocket PC: Windows Mobile 5.0 and later
Smartphone: Windows Mobile 5.0 and later
OS Versions: Windows CE 5.01 and later
Header: Ddraw.h.
Library: Ddraw.lib.
See Also
IDirectDraw::GetScanLine | IDirectDraw::WaitForVerticalBlank
Send Feedback on this topic to the authors