(This is the legacy documentation for SDL2, the previous stable version; SDL3 is the current stable version.)

SDL_GL_SetAttribute

Set an OpenGL window attribute before window creation.

Header File

Syntax

int SDL_GL_SetAttribute(SDL_GLattr attr, int value);

Function Parameters

SDL_GLattr	attr	an SDL_GLattr enum value specifying the OpenGL attribute to set.
int	value	the desired value for the attribute.

Return Value

(int) Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Remarks

This function sets the OpenGL attribute attr to value. The requested attributes should be set before creating an OpenGL window. You should use SDL_GL_GetAttribute() to check the values after creating the OpenGL context, since the values obtained can differ from the requested ones.

Version

This function is available since SDL 2.0.0.