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This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist. |
The DDHAL_WAITFORVERTICALBLANKDATAstructure contains the vertical blank information. This structure passes the information to the DirectDraw HAL WaitForVerticalBlankcallback function.
typedef struct _DDHAL_WAITFORVERTICALBLANKDATA { LPDDRAWI_DIRECTDRAW_GBL lpDD ; DWORD dwFlags ; DWORD bIsInVB ; DWORD hEvent ; HRESULT ddRVal ; LPDDHAL_WAITFORVERTICALBLANK WaitForVerticalBlank ; } DDHAL_WAITFORVERTICALBLANKDATA;
Members
Flag | Usage |
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DDWAITVB_BLOCKBEGIN | Return when the vertical blank interval begins. |
DDWAITVB_BLOCKBEGINEVENT | Set up an event to trigger when the vertical blank begins. This flag is not currently supported. |
DDWAITVB_BLOCKEND | Return when the vertical blank interval ends and display begins. |
DDWAITVB_I_TESTVB | DirectDraw sets the flag to query if a vertical blank is in progress. |
Last updated on Tuesday, July 13, 2004