28 #ifndef __vtkOpenGLHardwareSupport_h
29 #define __vtkOpenGLHardwareSupport_h
31 #include "vtkRenderingOpenGLModule.h"
45 int GetNumberOfFixedTextureUnits();
49 int GetNumberOfTextureUnits();
52 bool GetSupportsMultiTexturing();
69 bool ExtensionManagerSet();