xtcallbackc(3) [hpux man page]

XtCallbackPopdown()													       XtCallbackPopdown()

Name
  XtCallbackPopdown - callback function to popdown a widget.

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

Inputs
  w	    Specifies the widget.

  client_data
	    Specifies a pointer to an XtPopdownID structure.

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

Description
  XtCallbackPopdown() casts is client_data argument to an XtPopdownIDRec *, calls XtPopdown on the widget in the shell_widget field, and then
  resensitizes the widget in the enable_widget field by calling XtSetSensitive().

  XtCallbackPopdown() is a convenience procedure designed to be registered on a widget's callback list (which is why  it  has  third,  unused
  argument) and used on a shell widget popped up with XtCallbackExclusive(), XtCallbackNone(), or XtCallbackNonexclusive().  The widget to be
  popped down and the widget that was desensitized when the shell was popped up should be stored into the XtPopdownID structure that is  reg-
  istered with XtCallbackPopdown().

Usage
  It is also possible to pop down a shell with the XtMenuPopdown action.

Example
  The  following  code	registers XtCallbackPopdown() to popdown the widget pshell when the button ok is pressed.  It assumes that pshell was
  popped up by XtCallbackExclusive() registered on the widget button.

     XtPopdownIDRec pop_rec;

     pop_rec.shell_widget = pshell;
     pop_rec.enable_widget = button;
     XtAddCallback(ok, XtNcallback, XtCallbackPopdown, &pop_rec);

Structures
  XtCallbackPopdown() expects a XtPopdownID as its client_data argument.

     typedef struct {
	 Widget shell_widget;
	 Widget enable_widget;
     } XtPopdownIDRec, *XtPopdownID;

See Also
  XtCallbackExclusive(1), XtCallbackNone(1), XtCallbackNonexclusive(1), XtMenuPopup(1), XtMenuPopdown(1), XtPopdown(1), XtPopup(1), XtSetSen-
  sitive(1).

Xt - Pop Ups														       XtCallbackPopdown()

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:

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

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

       o    Unmaps popup_shell's window.

       o    If popup_shell's grab_kind is either XtGrabNonexclusive or XtGrabExclusive, it calls XtRemoveGrab.

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

       o    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 spec-
       ified 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(3), XtPopup(3)
       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

X Version 11							    libXt 1.1.3 						      XtPopdown(3)