1 <!-- ##### SECTION Title ##### -->
4 <!-- ##### SECTION Short_Description ##### -->
5 a drop down menu widget.
7 <!-- ##### SECTION Long_Description ##### -->
9 A #GtkMenu is a #GtkMenuShell that implements a drop down menu consisting of
10 a list of #GtkMenuItem objects which can be navigated and activated by the
11 user to perform application functions.
15 A #GtkMenu is most commonly dropped down by activating a #GtkMenuItem in a
16 #GtkMenuBar or popped up by activating a #GtkMenuItem in another #GtkMenu.
20 A #GtkMenu can also be popped up by activating a #GtkOptionMenu.
21 Other composite widgets such as the #GtkNotebook can pop up a #GtkMenu
26 Applications can display a #GtkMenu as a popup menu by calling the
27 gtk_menu_popup() function. The example below shows how an application
28 can pop up a menu when the 3rd mouse button is pressed.
32 <title>Connecting the popup signal handler.</title>
34 /* connect our handler which will popup the menu */
35 gtk_signal_connect_object(GTK_OBJECT(window), "button_press_event",
36 GTK_SIGNAL_FUNC (my_popup_handler), GTK_OBJECT(menu));
41 <title>Signal handler which displays a popup menu.</title>
44 my_popup_handler(GtkWidget *widget, GdkEvent *event)
47 GdkEventButton *event_button;
49 g_return_val_if_fail (widget != NULL, FALSE);
50 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
51 g_return_val_if_fail (event != NULL, FALSE);
53 /* The "widget" is the menu that was supplied when
54 * gtk_signal_connect_object was called.
56 menu = GTK_MENU (widget);
58 if (event->type == GDK_BUTTON_PRESS)
60 event_button = (GdkEventButton *) event;
61 if (event_button->button == 3)
63 gtk_menu_popup (menu, NULL, NULL, NULL, NULL,
64 event_button->button, event_button->time);
74 <!-- ##### SECTION See_Also ##### -->
79 <!-- ##### STRUCT GtkMenu ##### -->
81 The #GtkMenu-struct struct contains private data only, and
82 should be accessed using the functions below.
86 <!-- ##### FUNCTION gtk_menu_new ##### -->
88 Creates a new #GtkMenu.
91 @Returns: a new #GtkMenu.
94 <!-- ##### MACRO gtk_menu_append ##### -->
96 Adds a new #GtkMenuItem to the end of the menu's item list.
99 <!-- # Unused Parameters # -->
103 @child: The #GtkMenuItem to add.
106 <!-- ##### MACRO gtk_menu_prepend ##### -->
108 Adds a new #GtkMenuItem to the beginning of the menu's item list.
111 <!-- # Unused Parameters # -->
115 @child: The #GtkMenuItem to add.
118 <!-- ##### MACRO gtk_menu_insert ##### -->
120 Adds a new #GtkMenuItem to the menu's item list at the position
121 indicated by @position.
124 <!-- # Unused Parameters # -->
126 @child: The #GtkMenuItem to add.
127 @position: The position in the item list where @child is added.
128 Positions are numbered from 0 to n-1.
131 <!-- ##### FUNCTION gtk_menu_reorder_child ##### -->
133 Moves a #GtkMenuItem to a new position within the #GtkMenu.
137 @child: the #GtkMenuItem to move.
138 @position: the new position to place @child. Positions are numbered from
142 <!-- ##### FUNCTION gtk_menu_popup ##### -->
144 Displays a menu and makes it available for selection. Applications can use
145 this function to display context-sensitive menus, and will typically supply
146 NULL for the @parent_menu_shell, @parent_menu_item, @func and @data
147 parameters. The default menu positioning function will position the menu
148 at the current pointer position.
152 @parent_menu_shell: the menu shell containing the triggering menu item.
153 @parent_menu_item: the menu item whose activation triggered the popup.
154 @func: a user supplied function used to position the menu.
155 @data: user supplied data to be passed to @func.
156 @button: the button which was pressed to initiate the event.
157 @activate_time: the time at which the activation event occurred.
160 <!-- ##### FUNCTION gtk_menu_set_accel_group ##### -->
162 Set the #GtkAccelGroup which holds global accelerators for the menu.
166 @accel_group: the #GtkAccelGroup to be associated with the menu.
169 <!-- ##### FUNCTION gtk_menu_get_accel_group ##### -->
178 <!-- ##### FUNCTION gtk_menu_set_title ##### -->
180 Sets the title string for the menu. The title is displayed when the menu
181 is shown as a tearoff menu.
185 @title: a string containing the title for the menu.
188 <!-- ##### FUNCTION gtk_menu_popdown ##### -->
190 Removes the menu from the screen.
196 <!-- ##### FUNCTION gtk_menu_reposition ##### -->
198 Repositions the menu according to its position function.
204 <!-- ##### FUNCTION gtk_menu_get_active ##### -->
206 Returns the selected menu item from the menu. This is used by the
211 @Returns: the #GtkMenuItem that was last selected in the menu. If a
212 selection has not yet been made, the first menu item is selected.
215 <!-- ##### FUNCTION gtk_menu_set_active ##### -->
217 Selects the specified menu item within the menu. This is used by the
222 @index: the index of the menu item to select. Index values are from
226 <!-- ##### FUNCTION gtk_menu_set_tearoff_state ##### -->
228 Changes the tearoff state of the menu. A menu is normally displayed
229 as drop down menu which persists as long as the menu is active. It can
230 also be displayed as a tearoff menu which persists until it is closed
235 @torn_off: If TRUE, menu is displayed as a tearoff menu.
238 <!-- ##### FUNCTION gtk_menu_attach_to_widget ##### -->
240 Attaches the menu to the widget and provides a callback function that will
241 be invoked when the menu calls gtk_menu_detach() during its destruction.
245 @attach_widget: the #GtkWidget that the menu will be attached to.
246 @detacher: the user supplied callback function that will be called when
247 the menu calls gtk_menu_detach().
250 <!-- ##### FUNCTION gtk_menu_detach ##### -->
252 Detaches the menu from the widget to which it had been attached.
253 This function will call the callback function, @detacher, provided
254 when the gtk_menu_attach_to_widget() function was called.
260 <!-- ##### FUNCTION gtk_menu_get_attach_widget ##### -->
262 Returns the #GtkWidget that the menu is attached to.
266 @Returns: the #GtkWidget that the menu is attached to.
269 <!-- ##### USER_FUNCTION GtkMenuPositionFunc ##### -->
271 A user function supplied when calling gtk_menu_popup() which controls the
272 positioning of the menu when it is displayed. The function sets the @x
273 and @y parameters to the coordinates where the menu is to be drawn.
277 @x: address of the #gint representing the horizontal position where the
278 menu shall be drawn. This is an output parameter.
279 @y: address of the #gint representing the vertical position where the
280 menu shall be drawn. This is an output parameter.
282 @user_data: the data supplied by the user in the gtk_menu_popup() @data
286 <!-- ##### USER_FUNCTION GtkMenuDetachFunc ##### -->
288 A user function supplied when calling gtk_menu_attach_to_widget() which
289 will be called when the menu is later detached from the widget.
292 @attach_widget: the #GtkWidget that the menu is being detached from.
293 @menu: the #GtkMenu being detached.