Share via

IDirectDraw::GetVerticalBlankStatus (Windows Embedded CE 6.0)

  • Article

1/6/2010

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

See Also

Reference

IDirectDraw
IDirectDraw::GetScanLine
IDirectDraw::WaitForVerticalBlank