I am sure you can create a polygon and fill that polygon and have a mouse button click on it as its mouse position would tell the programe that it was over it but wouldn’t it be nice to have an easy extensibility of making dockable toolbars and menus that have hotkeys and fonts I am not sure if this is yet possible?
“Fonts” and “Menus” are nothing OGL should deal with directly - it’s for tool-kit on top of OGL. Your vague suggestion is just garbage (and off-topic for this subforum) - please refrain from making this kind of threads here.
There are already a few tool-kits out there that do this. Just search the web for something like “OpenGL GUI framework”.