//CLM [04.26.06] this function called when a tab becomes 'active' public override void Activate() { base.Activate(); //this call passes in the panel width and height MainWindow.mMainWindow.deviceResize(d3dRenderPanel.Width, d3dRenderPanel.Height, false); //this call passes in the panel handle in which you want to render to. //this is handled during the 'present' call BRenderDevice.setWindowTarget(d3dRenderPanel); }