How do I open a dual graphic screen in blitzmax

[Hardcoal]

I used to know that.. but Ive lost the example File.. Thanks..

[markcwm]

At init use GLShareContexts() then SetGraphics CanvasGraphics(canvas) for Maxgui or GLMax2DDriver() for Max2d. Use SetGraphics at graphics init and then each render loop followed by SetViewport(0, 0, ClientWidth(canvas), ClientHeight(canvas)). I think that's all you need, see openb3d examples/minib3d/maxgui2.bmx

[Hardcoal]

thanks Mark