//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);
}