GLA_CTYPE_BITMAP
GLA_CTYPE_SCREEN
GLA_CTYPE_UNKNOWN
GLA_CTYPE_WINDOW
GLA_EXTERNAL_READBUFFER_BITMAP
TGL_CONTEXT_BITMAP
TGL_CONTEXT_NODEPTH
TGL_CONTEXT_SCREEN
TGL_CONTEXT_STENCIL
TGL_CONTEXT_VERSION_53_0
TGL_CONTEXT_VERSION_53_1
TGL_CONTEXT_VERSION_53_11
TGL_CONTEXT_VERSION_53_9
TGL_CONTEXT_WINDOW
TGL_CORRECT_NORMALS_HINT
TGL_LOWQUALITY_TEXTURES_HINT
TINYGLNAME