If I have the following code... Where I create a windowed screen...
window = OpenWindow(#pb_any, 0,0, DesktopWidth(0), DesktopHeight(0), #PB_Window_BorderLess,"")
If window = 0
End
EndIf
screen = OpenWindowedScreen(WindowID(), 0, 0, DesktopWidth(0), DesktopHeight(0), 1, 0, 0)
If screen = 0 ...