gtkMenuShellSetTakeFocus: gtkMenuShellSetTakeFocus

In RGtk2: R Bindings for Gtk 2.8.0 and Above

Description

If take.focus is TRUE (the default) the menu shell will take the keyboard focus so that it will receive all keyboard events which is needed to enable keyboard navigation in menus.

Usage

gtkMenuShellSetTakeFocus(object, take.focus)

Arguments

object	a GtkMenuShell
take.focus	TRUE if the menu shell should take the keyboard focus on popup.

Details

Setting take.focus to FALSE is useful only for special applications like virtual keyboard implementations which should not take keyboard focus.

The take.focus state of a menu or menu bar is automatically propagated to submenus whenever a submenu is popped up, so you don't have to worry about recursively setting it for your entire menu hierarchy. Only when programmatically picking a submenu and popping it up manually, the take.focus property of the submenu needs to be set explicitely.

Note that setting it to FALSE has side-effects:

If the focus is in some other app, it keeps the focus and keynav in the menu doesn't work. Consequently,

To avoid confusing the user, menus with take.focus set to FALSE should not display mnemonics or accelerators, since it cannot be guaranteed that they will work.

See also gdkKeyboardGrab Since 2.8

Author(s)

Derived by RGtkGen from GTK+ documentation

RGtk2 documentation built on Oct. 14, 2021, 5:08 p.m.