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