Hi,
To implement your own OpenGL code in Vizard you will want to use the Custom Node plugin. You need Visual Studio .NET to open and compile the project. You can download all the necessary files
here . The zip file contains all the necessary library files, example code, and documentation. Since you want the OpenGL code to act as a GUI you will need to add it to the screen once you have your Custom Node compiled:
Code:
custom = viz.add('customnode.dlc',0,'',0,0,0,0,viz.SCREEN)
Let me know if you need any more help. Good luck!