XtPopdown(3Xt)XtPopdown(3Xt)NAME
XtPopdown, XtCallbackPopdown - unmap a pop-up
SYNOPSIS
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
Specifies the callback data, which is not used by this procedure.
Specifies a pointer to the XtPopdownID structure. Specifies the widget
shell to pop down. Specifies the name of the widget shell to pop down.
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 XtGrab‐
Nonexclusive 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;
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 wid‐
get for which the translation is specified. If a shell_name is speci‐
fied 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 appli‐
cation top-level shell widget and cannot find a matching shell, it gen‐
erates an error.
SEE ALSOXtCreatePopupShell(3Xt), XtPopup(3Xt)
X Toolkit Intrinsics -- C Language Interface
Xlib -- C Language X Interface
XtPopdown(3Xt)
