# SDL_GL_MakeCurrent Set up an OpenGL context for rendering into an OpenGL window. ## Header File Defined in [<SDL3/SDL_video.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_video.h) ## Syntax ```c bool SDL_GL_MakeCurrent(SDL_Window *window, SDL_GLContext context); ``` ## Function Parameters | | | | | ------------------------------ | ----------- | ------------------------------------------------ | | [SDL_Window](SDL_Window) * | **window** | the window to associate with the context. | | [SDL_GLContext](SDL_GLContext) | **context** | the OpenGL context to associate with the window. | ## Return Value (bool) Returns true on success or false on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Remarks The context must have been created with a compatible window. ## Thread Safety This function should only be called on the main thread. ## Version This function is available since SDL 3.2.0. ## See Also - [SDL_GL_CreateContext](SDL_GL_CreateContext) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryVideo](CategoryVideo)