| Value | Meaning |
|---|---|
| NOT_AVAILABLE0 | OpenGL support is not available |
| UNSUPPORTED_FORMAT1 | The requested visual format is not supported |
| UNSUPPORTED_PROFILE2 | The requested profile is not supported |
| COMPILATION_FAILED3 | The shader compilation failed |
| LINK_FAILED4 | The shader linking failed |
Error enumeration for GdkGLContext.