can't find a close button for Window

[cwing2019]

After using g.MasterWindowFlagsFrameless to hidden the OS style titlebar.
We create a window like this:

g.Window("window").Flags(g.WindowFlagsMenuBar|g.WindowFlagsNoCollapse|g.FocusedFlagsChildWindows).Layout....

it shows a window with menubar without inner titlebar with close button.
is there any style can show a close button on the right corner?

[gucio321]

@cwing2019 MasterWIndowFlagsFrameless is supposed to remove window decoration with its buttons.

Let mek now if you still need help!