DD_MOTIONCOMPCALLBACKS structure (ddrawint.h)
The DD_MOTIONCOMPCALLBACKS structure contains entry pointers to the motion compensation callback functions that a device driver supports.
Syntax
typedef struct DD_MOTIONCOMPCALLBACKS {
DWORD dwSize;
DWORD dwFlags;
PDD_MOCOMPCB_GETGUIDS GetMoCompGuids;
PDD_MOCOMPCB_GETFORMATS GetMoCompFormats;
PDD_MOCOMPCB_CREATE CreateMoComp;
PDD_MOCOMPCB_GETCOMPBUFFINFO GetMoCompBuffInfo;
PDD_MOCOMPCB_GETINTERNALINFO GetInternalMoCompInfo;
PDD_MOCOMPCB_BEGINFRAME BeginMoCompFrame;
PDD_MOCOMPCB_ENDFRAME EndMoCompFrame;
PDD_MOCOMPCB_RENDER RenderMoComp;
PDD_MOCOMPCB_QUERYSTATUS QueryMoCompStatus;
PDD_MOCOMPCB_DESTROY DestroyMoComp;
} DD_MOTIONCOMPCALLBACKS;
Members
dwSize
Specifies the size in bytes of this DD_MOTIONCOMPCALLBACKS structure.
dwFlags
Indicates what additional Microsoft DirectDraw motion compensation callback functions the driver has implemented. For every bit set in dwFlags, the driver must initialize the corresponding function pointer member of this structure. This member can be one or more of the following flags:
- DDHAL_MOCOMP32_BEGINFRAME
- DDHAL_MOCOMP32_CREATE
- DDHAL_MOCOMP32_DESTROY
- DDHAL_MOCOMP32_GETCOMPBUFFINFO
- DDHAL_MOCOMP32_GETINTERNALINFO
- DDHAL_MOCOMP32_ENDFRAME
- DDHAL_MOCOMP32_GETFORMATS
- DDHAL_MOCOMP32_GETGUIDS
- DDHAL_MOCOMP32_QUERYSTATUS
- DDHAL_MOCOMP32_RENDER
GetMoCompGuids
Points to the driver-supplied DdMoCompGetGuids callback function.
GetMoCompFormats
Points to the driver-supplied DdMoCompGetFormats callback function.
CreateMoComp
Points to the driver-supplied DdMoCompCreate callback function.
GetMoCompBuffInfo
Points to the driver-supplied DdMoCompGetBuffInfo callback function.
GetInternalMoCompInfo
Points to the driver-supplied DdMoCompGetInternalInfo callback function.
BeginMoCompFrame
Points to the driver-supplied DdMoCompBeginFrame callback function.
EndMoCompFrame
Points to the driver-supplied DdMoCompEndFrame callback function.
RenderMoComp
Points to the driver-supplied DdMoCompRender callback function.
QueryMoCompStatus
Points to the driver-supplied DdMoCompQueryStatus callback function.
DestroyMoComp
Points to the driver-supplied DdMoCompDestroy callback function.
Remarks
Entries that the display driver does not use should be set to NULL. The driver should initialize this structure when its DdGetDriverInfo function is called with the GUID_MotionCompCallbacks GUID.
Requirements
| Requirement | Value |
|---|---|
| Header | ddrawint.h (include Winddi.h) |