I assume you mean you don't want to use a separate windows form, seeing as how the text box and the window you are slapping it on are bothe in the windows.forms namespace. I'm not familiar with the inner workings of the OpenGL view, but I would say yes, you can just create a textbox and add it as a child to the root form. Just make sure you're doing so on the main UI thread, otherwise hilarity ensues. Or crashing. One or the other. Probably the other... It's the other.