DDOVERLAYFX

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Windows Embedded CE 6.0 R3

4/8/2010

This structure passes override information to the IDirectDrawSurface::UpdateOverlay method.

Syntax

typedef struct _DDOVERLAYFX{ 
  DWORD dwSize; 
  DWORD dwAlphaConstBitDepth; 
  DWORD dwAlphaConst; 
  DDCOLORKEY dckDestColorkey; 
  DDCOLORKEY dckSrcColorkey; 
} DDOVERLAYFX,FAR *LPDDOVERLAYFX;  

Members

• dwSize
  Size of the structure, in bytes.

  This member must be initialized before the structure is used.

• dwAlphaConstBitDepth
  Bit depth used to specify the alpha constant.

• dwAlphaConst
  Constant to use as the alpha channel.

• dckDestColorkey
  Destination color key override.

• dckSrcColorkey
  Source color key override.

Requirements