IDirectDraw::GetVerticalBlankStatus (Windows Embedded CE 6.0)

1/6/2010

This method retrieves the status of the vertical blank.

Syntax

HRESULT GetVerticalBlankStatus(
  LPBOOL lpbIsInVB
);

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.

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.

To synchronize with the vertical blank, use the IDirectDraw::WaitForVerticalBlank method.

Header	ddraw.h
Library	ddraw.lib
Windows Embedded CE	Windows Embedded CE 6.0 and later