void set_error_callback(void function(GLenum, string, string) cb);
ReturnType!(func) checkgl(alias func, Args...)(Args args);
checkgl checks in a debug build after every opengl call glGetError and calls an error-callback which can be set with set_error_callback a default is provided
string gl_error_string(GLenum error);
Converts an OpenGL errorenum to a string
template type2glenum(T)
D type to OpenGL enum
template glenum2type(GLenum t)
OpenGL enum to D type
template glenum2sizect(GLenum t)
int glenum2size(GLenum t);
OpenGL enum to D type size