view docs/man3/SDL_SetGamma.3 @ 1296:f418917e0b7a

Fixed crash: #include <SDL.h> int main(int argc, char** argv) { SDL_Init(SDL_INIT_EVERYTHING); SDL_SetVideoMode(640, 480, 0, SDL_FULLSCREEN); SDL_ShowCursor(SDL_DISABLE); SDL_Delay(1000); SDL_SetVideoMode(640, 480, 0, SDL_FULLSCREEN | SDL_OPENGL); SDL_Quit(); printf("Everything okay\n"); }
author Sam Lantinga <slouken@libsdl.org>
date Mon, 30 Jan 2006 13:30:44 +0000
parents e5bc29de3f0a
children 546f7c1eb755
line wrap: on
line source

.TH "SDL_SetGamma" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_SetGamma\- Sets the color gamma function for the display
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBint \fBSDL_SetGamma\fP\fR(\fBfloat redgamma, float greengamma, float bluegamma\fR);
.SH "DESCRIPTION"
.PP
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)\&.
.PP
This function adjusts the gamma based on the "gamma function" parameter, you can directly specify lookup tables for gamma adjustment with \fISDL_SetGammaRamp\fR\&.
.PP
Not all display hardware is able to change gamma\&.
.SH "RETURN VALUE"
.PP
Returns -1 on error (or if gamma adjustment is not supported)\&.
.SH "SEE ALSO"
.PP
\fISDL_GetGammaRamp\fR \fISDL_SetGammaRamp\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01