###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!)
# SDL_GLattr

An enumeration of OpenGL configuration attributes.

## Header File

Defined in [SDL_video.h](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_video.h), but apps should use `#include <SDL3/SDL.h>`

## Syntax

```c
typedef enum SDL_GLattr
{
    SDL_GL_RED_SIZE,
    SDL_GL_GREEN_SIZE,
    SDL_GL_BLUE_SIZE,
    SDL_GL_ALPHA_SIZE,
    SDL_GL_BUFFER_SIZE,
    SDL_GL_DOUBLEBUFFER,
    SDL_GL_DEPTH_SIZE,
    SDL_GL_STENCIL_SIZE,
    SDL_GL_ACCUM_RED_SIZE,
    SDL_GL_ACCUM_GREEN_SIZE,
    SDL_GL_ACCUM_BLUE_SIZE,
    SDL_GL_ACCUM_ALPHA_SIZE,
    SDL_GL_STEREO,
    SDL_GL_MULTISAMPLEBUFFERS,
    SDL_GL_MULTISAMPLESAMPLES,
    SDL_GL_ACCELERATED_VISUAL,
    SDL_GL_RETAINED_BACKING,
    SDL_GL_CONTEXT_MAJOR_VERSION,
    SDL_GL_CONTEXT_MINOR_VERSION,
    SDL_GL_CONTEXT_FLAGS,
    SDL_GL_CONTEXT_PROFILE_MASK,
    SDL_GL_SHARE_WITH_CURRENT_CONTEXT,
    SDL_GL_FRAMEBUFFER_SRGB_CAPABLE,
    SDL_GL_CONTEXT_RELEASE_BEHAVIOR,
    SDL_GL_CONTEXT_RESET_NOTIFICATION,
    SDL_GL_CONTEXT_NO_ERROR,
    SDL_GL_FLOATBUFFERS,
    SDL_GL_EGL_PLATFORM
} SDL_GLattr;
```

## Remarks

While you can set most OpenGL attributes normally, the attributes listed
above must be known before SDL creates the window that will be used with
the OpenGL context. These attributes are set and read with
[SDL_GL_SetAttribute](SDL_GL_SetAttribute)() and
[SDL_GL_GetAttribute](SDL_GL_GetAttribute)().

In some cases, these attributes are minimum requests; the GL does not
promise to give you exactly what you asked for. It's possible to ask for a
16-bit depth buffer and get a 24-bit one instead, for example, or to ask
for no stencil buffer and still have one available. Context creation should
fail if the GL can't provide your requested attributes at a minimum, but
you should check to see exactly what you got.

## Version

This enum is available since SDL 3.0.0.

----
[CategoryAPI](CategoryAPI), [CategoryAPIEnum](CategoryAPIEnum)