Museum

Home

Lab Overview

Retrotechnology Articles

Online Manuals

⇒ XtPopdown(3Xt) — Dell System V Release 4 Issue 2.2

Media Vault

Software Library

Restoration Projects

Artifacts Sought

Related Articles

XtCreatePopupShell(3Xt)

XtPopup(3Xt)



XtPopdown(3Xt)              X Version 11(Release 3)              XtPopdown(3Xt)


NAME
      XtPopdown, XtCallbackPopdown, MenuPopdown - unmap a pop-up

SYNTAX
      void XtPopdown(popup_shell)
            Widget popup_shell;

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

      void MenuPopdown(shell_name)
            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 XtRemoveGrab.

      ⊕    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:





10/89                                                                    Page 1







XtPopdown(3Xt)              X Version 11(Release 3)              XtPopdown(3Xt)


      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






























Page 2                                                                    10/89





Typewritten Software • bear@typewritten.org • Edmonds, WA 98026