LPDDHALCOLORCB_GAMMACONTROL (Compact 2013)

Article
07/31/2017

3/26/2014

This callback function controls the brightness of an overlay or a primary surface.

Syntax

DWORD (FAR PASCAL * LPDDHALCOLORCB_GAMMACONTROL)(
  LPDDHAL_GAMMACONTROLDATA lpgcd
);

Parameters

lpgcd
[in, out] Pointer to a DDHAL_GAMMACONTROLDATA structure that contains the gamma control information.

Return Value

Returns one of the following values:

DDHAL_DRIVER_HANDLED
The request was handled although a specific action may not have been taken.

DDHAL_DRIVER_NOTHANDLED
The request was not handled or processed in any way.

Note

For a complete list of the DDHAL callback return values, see DDHAL Callback Return Values.

Requirements

Header	ddrawi.h
Library	Developer Implemented

See Also

Reference

Color Control Callback Functions
DDHAL_GAMMACONTROLDATA
DDHAL Callback Return Values