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


Set an OpenGL window attribute before window creation.


int SDL_GL_SetAttribute(SDL_GLattr attr, int value);

Function Parameters

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

Return Value

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


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.


This function is available since SDL 2.0.0.


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