Parameters
extension
A null terminated ISO 8859-1 string containing the name of an OpenGL™ extension.
Return values
The function returns t if the extension is supported. Otherwise it returns nil.
Description
The function does a string search in the list of supported OpenGL™ extensions to find if the specified
extension is listed.
Notes
An OpenGL™ context must be created before this function can be called (i.e. an OpenGL™ window
must have been opened with glfwOpenWindow).
In addition to checking for OpenGL™ extensions, GLFW also checks for extensions in the operating
system “glue API”, such as WGL extensions under Windows and glX extensions under the X Window
System.