An OpenGL interface
loadExtensions() must be executed after the creation of a rendering context and before any OpenGL extension procs are used.
The OpenGL procs do perform automatic error checking by default. This can be disabled at compile-time by defining the conditional symbol noAutoGLerrorCheck (-d:noAutoGLerrorCheck), in which case the error checking code will be omitted from the binary; or at run-time by executing this statement: enableAutoGLerrorCheck(false).