XtPopdown(3Xt) XtPopdown(3Xt)
NAME
XtPopdown, XtCallbackPopdown, MenuPopdown - unmap a
pop-up
SYNOPSIS
void XtPopdown(popup_shell)
Widget popup_shell;
void XtCallbackPopdown(w, client_data, call_data)
Widget w;
caddr_t client_data;
caddr_t 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.
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XtPopdown(3Xt) XtPopdown(3Xt)
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 Programming Manual
Xlib Programming Manual
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