Hi all

I'm a fresh newbie in FLTK. I have two windows to display on one window. OpenGL class which inherits from Fl_GL_Window and the other one is Delta3d ( www.delta3d.org ) window , which inherits from Fl_DT_Window. When I put these windows on one main window as subwindows. But only one of them can be run. for example only Delta3d class works properly. the OpenGL one can run but opengl screen cannot redraw properly. It calls draw function properly but no visual drawing.

On the other hand, when I put only one of the subclasses on the main window,it works very well. What can be the reason? Don't I use two subwindows on a main window? subwindows have different processes.

The chart like as :

Main window

Subwindow1(opengl) Subwindow2(delta3d)

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waiting for your soonest reply

Regards

Ertunc