DDHAL_GAMMACONTROLDATA (Compact 2013)

3/26/2014

This structure contains the gamma control information for a specified surface.

Syntax

typedef struct _DDHAL_GAMMACONTROLDATA {
  LPDDRAWI_DIRECTDRAW_GBL     lpDD;
  LPDDRAWI_DDRAWSURFACE_LCL lpDDSurface;
  LPDDGAMMARAMP lpGammaData;
  DWORD dwFlags;
  HRESULT ddRVal;
} DDHAL_GAMMACONTROLDATA, * LPDDHAL_GAMMACONTROLDATA;

Members

• lpDD
  Pointer to the DDRAWI_DIRECTDRAW_GBL structure that represents the DirectDraw object.

• lpDDSurface
  Pointer to the DDRAWI_DDRAWSURFACE_LCL structure that represents the DirectDrawSurface object.

• lpGammaData
  Pointer to a DDGAMMARAMP structure that defines the gamma controls associated with an overlay or primary surface.

• dwFlags
  Color control flags.

  The following table shows the possible flags.

  Flag	Description
  DDGAMMAC_I_GETGAMMA	Indicates you want to get the current gamma controls.
  DDGAMMAC_I_SETGAMMA	Indicates you want to set new gamma control values.

• ddRVal
  Passes the DirectDraw return values.

Requirements

Header

ddrawi.h

See Also

Reference

Color Control Structures
DDRAWI_DIRECTDRAW_GBL
DDRAWI_DDRAWSURFACE_LCL