Creates a new
GtkWindow, which is a toplevel window that can
contain other widgets. Nearly always, the type of the window should
GTK_WINDOW_TOPLEVEL. If you're implementing something like a
popup menu from scratch (which is a bad idea, just use
you might use
GTK_WINDOW_POPUP is not for
dialogs, though in some other toolkits dialogs are called "popups".
GTK_WINDOW_POPUP means a pop-up menu or pop-up tooltip.
On X11, popup windows are not controlled by the window manager.
gtkWindowNew(type = NULL, show = TRUE)
- type of window
If you simply want an undecorated window (no window borders), use
gtkWindowSetDecorated, don't use