glCopyColorTable Interface to
OpenGL function glCopyColorTable
usage: glCopyColorTable( target, internalformat, x, y, width )
C function: void glCopyColorTable(GLenum target, GLenum internalformat, GLint x, GLint y, GLsizei width)
Psychtoolbox/PsychOpenGL/MOGL/wrap/glCopyColorTable.m