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DdSetGammaRamp function

[This function is subject to change with each operating system revision. Instead, use the Microsoft DirectDraw and Microsoft Direct3DAPIs; these APIs insulate applications from such operating system changes, and hide many other difficulties involved in interacting directly with display drivers. ]

The DdSetGammaRamp function sets the gamma ramp for the device.

GdiEntry15 is defined as an alias for this function.

Syntax


BOOL APIENTRY DdSetGammaRamp(
  _In_  LPDDRAWI_DIRECTDRAW_LCL pDDraw,
  _In_  HDC hdc,
  _In_  LPVOID lpGammaRamp
);

Parameters

pDDraw [in]

Pointer to user-mode DirectDraw device object.

hdc [in]

Reserved.

lpGammaRamp [in]

Pointer to an array of DDGAMMARAMP structures.

Return value

The return value is TRUE if the function is successful. Otherwise, it is NULL.

Remarks

It is recommended that applications use the IDirectDrawGammaControl::SetGammaRamp or IDirect3DDevice9::SetGammaRamp methods instead since these methods offer the same functionality independent of the operating system.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Ddrawgdi.h

See also

Graphics Low Level Client Support

 

 

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