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XtPopdown(3)                                    XT FUNCTIONS                                    XtPopdown(3)



NAME
       XtPopdown, XtCallbackPopdown - unmap a pop-up

SYNTAX
       void XtPopdown(Widget popup_shell);

       void XtCallbackPopdown(Widget w, XtPointer client_data, XtPointer call_data);

       void MenuPopdown(String shell_name);

ARGUMENTS
       call_data Specifies the callback data, which is not used by this procedure.

       client_data
                 Specifies a pointer to the XtPopdownID structure.

       popup_shell
                 Specifies the widget shell to pop down.

       shell_name
                 Specifies the name of the widget shell to pop down.

       w         Specifies the widget.

DESCRIPTION
       The XtPopdown function performs the following:

       •    Calls XtCheckSubclass to ensure popup_shell is a subclass of Shell.

       •    Checks that popup_shell is currently popped_up; otherwise, it generates an error.

       •    Unmaps popup_shell's window.

       •    If popup_shell's grab_kind is either XtGrabNonexclusive or XtGrabExclusive, it calls XtRemoveG-rab. XtRemoveGrab.
            rab.

       •    Sets pop-up shell's popped_up field to False.

       •    Calls the callback procedures on the shell's popdown_callback list.

       The XtCallbackPopdown function casts the client data parameter to an XtPopdownID pointer:

       typedef struct {
            Widget shell_widget;
            Widget enable_widget;
       } XtPopdownIDRec, *XtPopdownID;
The shell_widget is the pop-up shell to pop down, and the enable_widget is the widget that was used to pop
it up.

       XtCallbackPopdown calls XtPopdown with the specified shell_widget and then calls XtSetSensitive to
       resensitize the enable_widget.

       If a shell name is not given, MenuPopdown calls XtPopdown with the widget for which the translation
       is specified.  If a shell_name is specified in the translation table, MenuPopdown tries to find the
       shell by looking up the widget tree starting at the parent of the widget in which it is invoked.  If
       it finds a shell with the specified name in the pop-up children of that parent, it pops down the
       shell; otherwise, it moves up the parent chain as needed.  If MenuPopdown gets to the application
       top-level shell widget and cannot find a matching shell, it generates an error.

SEE ALSO
       XtCreatePopupShell(3Xt), XtPopup(3Xt)
       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface



X Version 11                                     libXt 1.0.5                                    XtPopdown(3)