## DDBLTBATCH

The DDBLTBATCH structure passes blit operations to the IDirectDrawSurface3::BltBatch method.

typedef struct _DDBLTBATCH{

LPRECT lprDest;

LPDIRECTDRAWSURFACE lpDDSSrc;

LPRECT lprSrc;

DWORD dwFlags;

LPDDBLTFX lpDDBltFx;

} DDBLTBATCH,FAR *LPDDBLTBATCH;

##### Members

lprDest
  Address of a RECT structure that defines the destination for the blit.
lpDDSSrc
  Address of a DirectDrawSurface object that will be the source of the blit.
lprSrc
  Address of a RECT structure that defines the source rectangle of the blit.
dwFlags
  Optional control flags.

  DDBLT_ALPHADEST
  | Uses either the alpha information in pixel format or the alpha channel surface attached to the destination surface as the alpha channel for this blit.
  DDBLT_ALPHADESTCONSTOVERRIDE
  | Uses the dwAlphaDestConst member of the DDBLTFX structure as the alpha channel for the destination surface for this blit.
  DDBLT_ALPHADESTNEG
  | Indicates that the destination surface becomes more transparent as the alpha value increases (0 is opaque).
  DDBLT_ALPHADESTSURFACEOVERRIDE
  | Uses the lpDDSAlphaDest member of the DDBLTFX structure as the alpha channel for the destination surface for this blit.
  DDBLT_ALPHAEDGEBLEND
  | Uses the dwAlphaEdgeBlend member of the DDBLTFX structure as the alpha channel for the edges of the image that border the color key colors.
  DDBLT_ALPHASRC
  | Uses either the alpha information in pixel format or the alpha channel surface attached to the source surface as the alpha channel for this blit.
  DDBLT_ALPHASRCCONSTOVERRIDE
  | Uses the dwAlphaSrcConst member of the DDBLTFX structure as the source alpha channel for this blit.
  DDBLT_ALPHASRCNEG
  | Indicates that the source surface becomes more transparent as the alpha value increases (0 is opaque).
  DDBLT_ALPHASRCSURFACEOVERRIDE
  | Uses the lpDDSAlphaSrc member of the DDBLTFX structure as the alpha channel source for this blit.
  DDBLT_ASYNC
  | Processes this blit asynchronously through the FIFO hardware in the order received. If there is no room in the FIFO hardware, the call fails.
  DDBLT_COLORFILL
  | Uses the dwFillColor member of the DDBLTFX structure as the RGB color that fills the destination rectangle on the destination surface.
  DDBLT_DDFX
  | Uses the dwDDFX member of the DDBLTFX structure to specify the effects to be used for this blit.
  DDBLT_DDROPS
  | Uses the dwDDROPS member of the DDBLTFX structure to specify the raster operations (ROPs) that are not part of the Win32 API.
  DDBLT_KEYDEST
  | Uses the color key associated with the destination surface.
  DDBLT_KEYDESTOVERRIDE
  | Uses the dckDestColorkey member of the DDBLTFX structure as the color key for the destination surface.
  DDBLT_KEYSRC
  | Uses the color key associated with the source surface.
  DDBLT_KEYSRCOVERRIDE
  | Uses the dckSrcColorkey member of the DDBLTFX structure as the color key for the source surface.
  DDBLT_ROP
  | Uses the dwROP member of the DDBLTFX structure for the ROP for this blit. The ROPs are the same as those defined in the Win32 API.
  DDBLT_ROTATIONANGLE
  | Uses the dwRotationAngle member of the DDBLTFX structure as the rotation angle (specified in 1/100th of a degree) for the surface.
  DDBLT_ZBUFFER
  | Performs a z-buffered blit using the z-buffers attached to the source and destination surfaces and the dwZBufferOpCode member of the DDBLTFX structure as the z-buffer opcode.
  DDBLT_ZBUFFERDESTCONSTOVERRIDE
  | Performs a z-buffered blit using the dwZDestConst and dwZBufferOpCode members of the DDBLTFX structure as the z-buffer and z-buffer opcode, respectively, for the destination.
  DDBLT_ZBUFFERDESTOVERRIDE
  | Performs a z-buffered blit using the lpDDSZBufferDest and dwZBufferOpCode members of the DDBLTFX structure as the z-buffer and z-buffer opcode, respectively, for the destination.
  DDBLT_ZBUFFERSRCCONSTOVERRIDE
  | Performs a z-buffered blit using the dwZSrcConst and dwZBufferOpCode members of the DDBLTFX structure as the z-buffer and z-buffer opcode, respectively, for the source.
  DDBLT_ZBUFFERSRCOVERRIDE
  | A z-buffered blit using the lpDDSZBufferSrc and dwZBufferOpCode members of the DDBLTFX structure as the z-buffer and z-buffer opcode, respectively, for the source.

lpDDBltFx
  Address of a DDBLTFX structure specifying additional blit effects.