DDHAL_WAITFORVPORTSYNCDATA
The DDHAL_WAITFORVPORTSYNCDATA structure contains the information required to sync the video port. This structure passes the information to the DirectDraw HAL WaitForVideoPortSync callback function.
typedef struct _DDHAL_WAITFORVPORTSYNCDATA
{
LPDDRAWI_DIRECTDRAW_LCL lpDD;
LPDDRAWI_DDVIDEOPORT_LCL lpVideoPort;
DWORD dwFlags;
DWORD dwLine;
DWORD dwTimeOut;
HRESULT ddRVal;
LPDDHALVPORTCB_WAITFORSYNC WaitForVideoPortSync;
} DDHAL_WAITFORVPORTSYNCDATA;
Members
lpDD
Pointer to the DDRAWI_DIRECTDRAW_LCL structure that represents the DirectDraw object.lpVideoPort
Pointer to the DDRAWI_DDVIDEOPORT_LCL structure that represents this video port.dwFlags
Control flags for video synchronization.Flag Usage DDVPWAIT_BEGIN Waits until the beginning of the next V-sync. DDVPWAIT_END Waits until the end of the next/current V-sync. DDVPWAIT_LINE Waits until the beginning of the specified line. dwLine
Indicates the line number on which to synchronize.dwTimeOut
Indicates the maximum amount of time to wait, in milliseconds, before timing out.ddRVal
Passes the DirectDraw return values.WaitForVideoPortSync
This member is used by DirectDraw and should not be filled in by the driver.
Last updated on Tuesday, July 13, 2004
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