DDSURFACEDESC Structure
Microsoft DirectShow 9.0 |
The structure is passed to CreateSurface to describe the surface that should be created. The relevant members differ for each type of surface being created.
typedef struct _DDSURFACEDESC{ DWORD dwSize; DWORD dwFlags; DWORD dwHeight; DWORD dwWidth; LONG lPitch; DWORD dwBackBufferCount; DWORD dwZBufferBitDepth; DWORD dwAlphaBitDepth; LPVOID lpSurface; DDCOLORKEY ddckCKDestOverlay; DDCOLORKEY ddckCKDestBlt; DDCOLORKEY ddckCKSrcOverlay; DDCOLORKEY ddckCKSrcBlt; DDPIXELFORMAT ddpfPixelFormat; DDSCAPS ddsCaps; } DDSURFACEDESC, FAR* LPDDSURFACEDESC;
Members
dwSize
Size of the structure. Must be initialized prior to use.
dwFlags
Flag | Description |
DDSD_CAPS | ddsCaps is valid. |
DDSD_HEIGHT | dwHeight is valid. |
DDSD_WIDTH | dwWidth is valid. |
DDSD_PITCH | lPitch is valid. |
DDSD_BACKBUFFERCOUNT | dwBackBufferCount is valid. |
DDSD_ZBUFFERBITDEPTH | dwZBufferBitDepth is valid. |
DDSD_ALPHABITDEPTH | dwAlphaBitDepth is valid. |
DDSD_LPSURFACE | lpSurface is valid. |
DDSD_PIXELFORMAT | ddpfPixelFormat is valid. |
DDSD_CKDESTOVERLAY | ddckCKDestOverlay is valid. |
DDSD_CKDESTBLT | ddckCKDestBlt is valid. |
DDSD_CKSRCOVERLAY | ddckCKSrcOverlay is valid. |
DDSD_CKSRCBLT | ddckCKSrcBlt is valid. |
DDSD_ALL | All members are valid. |
dwHeight
Height of surface.
dwWidth;
Width of input surface.
lPitch
Distance to start of next line (return value only).
dwBackBufferCount
Number of back buffers.
dwZBufferBitDepth
Depth of Z buffer.
dwAlphaBitDepth
Depth of alpha buffer.
lpSurface
Pointer to the associated surface memory.
ddckCKDestOverlay
Color key for destination overlay use.
ddckCKDestBlt
Color key for destination blit use.
ddckCKSrcOverlay
Color key for source overlay use.
ddckCKSrcBlt
Color key for source blit use.
ddpfPixelFormat
Pixel format description of the surface.
ddsCaps
DirectDraw surface capabilities.
See Also