gdk:gl-context-required-version (context)

context -- a gdk:gl-context object

major - an integer with the major version to request
minor - an integer with the minor version to request

The gdk:gl-context-required-version function retrieves the major and minor version of OpenGL to request. The (setf gdk:gl-context-required-version) function sets the major and minor version to request. Setting major and minor to zero will use the default values.

The gdk:gl-context object must not be realized or made current prior to calling this function.