IDirectDraw::GetVerticalBlankStatus
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4/8/2010
This method retrieves the status of the vertical blank.
Syntax
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 Value
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 |
For more information on these error codes see DirectDraw Return Values.
Remarks
To synchronize with the vertical blank, use the IDirectDraw::WaitForVerticalBlank method.
Requirements
| Header | ddraw.h |
| Library | ddraw.lib |
| Windows Embedded CE | Windows Embedded CE 6.0 and later |
| Windows Mobile | Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later |