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Manpage of SDL_SetGamma

SDL_SetGamma

Index
 

NAME

SDL_SetGamma- Sets the color gamma function for the display  

SYNOPSIS

fB#include "SDL&.h"

fBint fBSDL_SetGammafPfR(fBfloat redgamma, float greengamma, float bluegammafR);  

DESCRIPTION

Sets the "gamma function" for the display of each color component&. Gamma controls the brightness/contrast of colors displayed on the screen&. A gamma value of 1&.0 is identity (i&.e&., no adjustment is made)&.

This function adjusts the gamma based on the "gamma function" parameter, you can directly specify lookup tables for gamma adjustment with fISDL_SetGammaRampfR&.

Not all display hardware is able to change gamma&.  

RETURN VALUE

Returns -1 on error (or if gamma adjustment is not supported)&.  

SEE ALSO

fISDL_GetGammaRampfR fISDL_SetGammaRampfR


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO