Connecting the popup signal handler.

1
2
3

// connect our handler which will popup the menu
g_signal_connect_swapped (window, "button_press_event",
G_CALLBACK (my_popup_handler), menu);

Signal handler which displays a popup menu.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

static gint
my_popup_handler (GtkWidget *widget, GdkEvent *event)
{
  GtkMenu *menu;
  GdkEventButton *event_button;

  g_return_val_if_fail (widget != NULL, FALSE);
  g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  // The "widget" is the menu that was supplied when 
  // g_signal_connect_swapped() was called.
  menu = GTK_MENU (widget);

  if (event->type == GDK_BUTTON_PRESS)
    {
      event_button = (GdkEventButton *) event;
      if (event_button->button == GDK_BUTTON_SECONDARY)
        {
          gtk_menu_popup (menu, NULL, NULL, NULL, NULL, 
                          event_button->button, event_button->time);
          return TRUE;
        }
    }

  return FALSE;
}

gtk_menu_new ()

GtkWidget *
gtk_menu_new (void);

Creates a new GtkMenu

gtk_menu_new_from_model ()

GtkWidget *
gtk_menu_new_from_model (GMenuModel *model);

Creates a GtkMenu and populates it with menu items and submenus according to model .

The created menu items are connected to actions found in the GtkApplicationWindow to which the menu belongs - typically by means of being attached to a widget (see gtk_menu_attach_to_widget()) that is contained within the GtkApplicationWindows widget hierarchy.

Actions can also be added using gtk_widget_insert_action_group() on the menu's attach widget or on any of its parent widgets.

Since 3.4

gtk_menu_set_screen ()

void
gtk_menu_set_screen (GtkMenu *menu,
                     GdkScreen *screen);

Sets the GdkScreen on which the menu will be displayed.

Since 2.2

gtk_menu_reorder_child ()

void
gtk_menu_reorder_child (GtkMenu *menu,
                        GtkWidget *child,
                        gint position);

Moves child to a new position in the list of menu children.

gtk_menu_attach ()

void
gtk_menu_attach (GtkMenu *menu,
                 GtkWidget *child,
                 guint left_attach,
                 guint right_attach,
                 guint top_attach,
                 guint bottom_attach);

Adds a new GtkMenuItem to a (table) menu. The number of “cells” that an item will occupy is specified by left_attach , right_attach , top_attach and bottom_attach . These each represent the leftmost, rightmost, uppermost and lower column and row numbers of the table. (Columns and rows are indexed from zero).

Note that this function is not related to gtk_menu_detach().

Since 2.4

gtk_menu_popup_for_device ()

void
gtk_menu_popup_for_device (GtkMenu *menu,
                           GdkDevice *device,
                           GtkWidget *parent_menu_shell,
                           GtkWidget *parent_menu_item,
                           GtkMenuPositionFunc func,
                           gpointer data,
                           GDestroyNotify destroy,
                           guint button,
                           guint32 activate_time);

Displays a menu and makes it available for selection.

Applications can use this function to display context-sensitive menus, and will typically supply NULL for the parent_menu_shell , parent_menu_item , func , data and destroy parameters. The default menu positioning function will position the menu at the current position of device (or its corresponding pointer).

The button parameter should be the mouse button pressed to initiate the menu popup. If the menu popup was initiated by something other than a mouse button press, such as a mouse button release or a keypress, button should be 0.

The activate_time parameter is used to conflict-resolve initiation of concurrent requests for mouse/keyboard grab requests. To function properly, this needs to be the time stamp of the user event (such as a mouse click or key press) that caused the initiation of the popup. Only if no such event is available, gtk_get_current_event_time() can be used instead.

Since 3.0

gtk_menu_popup ()

void
gtk_menu_popup (GtkMenu *menu,
                GtkWidget *parent_menu_shell,
                GtkWidget *parent_menu_item,
                GtkMenuPositionFunc func,
                gpointer data,
                guint button,
                guint32 activate_time);

Displays a menu and makes it available for selection.

Applications can use this function to display context-sensitive menus, and will typically supply NULL for the parent_menu_shell , parent_menu_item , func and data parameters. The default menu positioning function will position the menu at the current mouse cursor position.

The button parameter should be the mouse button pressed to initiate the menu popup. If the menu popup was initiated by something other than a mouse button press, such as a mouse button release or a keypress, button should be 0.

The activate_time parameter is used to conflict-resolve initiation of concurrent requests for mouse/keyboard grab requests. To function properly, this needs to be the timestamp of the user event (such as a mouse click or key press) that caused the initiation of the popup. Only if no such event is available, gtk_get_current_event_time() can be used instead.

gtk_menu_set_accel_group ()

void
gtk_menu_set_accel_group (GtkMenu *menu,
                          GtkAccelGroup *accel_group);

Set the GtkAccelGroup which holds global accelerators for the menu. This accelerator group needs to also be added to all windows that this menu is being used in with gtk_window_add_accel_group(), in order for those windows to support all the accelerators contained in this group.

gtk_menu_get_accel_group ()

GtkAccelGroup *
gtk_menu_get_accel_group (GtkMenu *menu);

Gets the GtkAccelGroup which holds global accelerators for the menu. See gtk_menu_set_accel_group().

gtk_menu_set_accel_path ()

void
gtk_menu_set_accel_path (GtkMenu *menu,
                         const gchar *accel_path);

Sets an accelerator path for this menu from which accelerator paths for its immediate children, its menu items, can be constructed. The main purpose of this function is to spare the programmer the inconvenience of having to call gtk_menu_item_set_accel_path() on each menu item that should support runtime user changable accelerators. Instead, by just calling gtk_menu_set_accel_path() on their parent, each menu item of this menu, that contains a label describing its purpose, automatically gets an accel path assigned.

For example, a menu containing menu items “New” and “Exit”, will, after gtk_menu_set_accel_path (menu, "<Gnumeric-Sheet>/File"); has been called, assign its items the accel paths: "<Gnumeric-Sheet>/File/New" and "<Gnumeric-Sheet>/File/Exit".

Assigning accel paths to menu items then enables the user to change their accelerators at runtime. More details about accelerator paths and their default setups can be found at gtk_accel_map_add_entry().

Note that accel_path string will be stored in a GQuark. Therefore, if you pass a static string, you can save some memory by interning it first with g_intern_static_string().

gtk_menu_get_accel_path ()

const gchar *
gtk_menu_get_accel_path (GtkMenu *menu);

Retrieves the accelerator path set on the menu.

Since 2.14

gtk_menu_set_title ()

void
gtk_menu_set_title (GtkMenu *menu,
                    const gchar *title);

Sets the title string for the menu.

The title is displayed when the menu is shown as a tearoff menu. If title is NULL, the menu will see if it is attached to a parent menu item, and if so it will try to use the same text as that menu item’s label.

gtk_menu_get_title ()

const gchar *
gtk_menu_get_title (GtkMenu *menu);

Returns the title of the menu. See gtk_menu_set_title().

gtk_menu_set_monitor ()

void
gtk_menu_set_monitor (GtkMenu *menu,
                      gint monitor_num);

Informs GTK+ on which monitor a menu should be popped up. See gdk_screen_get_monitor_geometry().

This function should be called from a GtkMenuPositionFunc if the menu should not appear on the same monitor as the pointer. This information can’t be reliably inferred from the coordinates returned by a GtkMenuPositionFunc, since, for very long menus, these coordinates may extend beyond the monitor boundaries or even the screen boundaries.

Since 2.4

gtk_menu_get_monitor ()

gint
gtk_menu_get_monitor (GtkMenu *menu);

Retrieves the number of the monitor on which to show the menu.

Since 2.14

gtk_menu_get_tearoff_state ()

gboolean
gtk_menu_get_tearoff_state (GtkMenu *menu);

Returns whether the menu is torn off. See gtk_menu_set_tearoff_state().

gtk_menu_set_reserve_toggle_size ()

void
gtk_menu_set_reserve_toggle_size (GtkMenu *menu,
                                  gboolean reserve_toggle_size);

Sets whether the menu should reserve space for drawing toggles or icons, regardless of their actual presence.

Since 2.18

gtk_menu_get_reserve_toggle_size ()

gboolean
gtk_menu_get_reserve_toggle_size (GtkMenu *menu);

Returns whether the menu reserves space for toggles and icons, regardless of their actual presence.

Since 2.18

gtk_menu_popdown ()

void
gtk_menu_popdown (GtkMenu *menu);

Removes the menu from the screen.

gtk_menu_reposition ()

void
gtk_menu_reposition (GtkMenu *menu);

Repositions the menu according to its position function.

gtk_menu_get_active ()

GtkWidget *
gtk_menu_get_active (GtkMenu *menu);

Returns the selected menu item from the menu. This is used by the GtkComboBox.

gtk_menu_set_active ()

void
gtk_menu_set_active (GtkMenu *menu,
                     guint index);

Selects the specified menu item within the menu. This is used by the GtkComboBox and should not be used by anyone else.

gtk_menu_set_tearoff_state ()

void
gtk_menu_set_tearoff_state (GtkMenu *menu,
                            gboolean torn_off);

Changes the tearoff state of the menu. A menu is normally displayed as drop down menu which persists as long as the menu is active. It can also be displayed as a tearoff menu which persists until it is closed or reattached.

gtk_menu_attach_to_widget ()

void
gtk_menu_attach_to_widget (GtkMenu *menu,
                           GtkWidget *attach_widget,
                           GtkMenuDetachFunc detacher);

Attaches the menu to the widget and provides a callback function that will be invoked when the menu calls gtk_menu_detach() during its destruction.

If the menu is attached to the widget then it will be destroyed when the widget is destroyed, as if it was a child widget. An attached menu will also move between screens correctly if the widgets moves between screens.

gtk_menu_detach ()

void
gtk_menu_detach (GtkMenu *menu);

Detaches the menu from the widget to which it had been attached. This function will call the callback function, detacher , provided when the gtk_menu_attach_to_widget() function was called.

gtk_menu_get_attach_widget ()

GtkWidget *
gtk_menu_get_attach_widget (GtkMenu *menu);

Returns the GtkWidget that the menu is attached to.

gtk_menu_get_for_attach_widget ()

GList *
gtk_menu_get_for_attach_widget (GtkWidget *widget);

Returns a list of the menus which are attached to this widget. This list is owned by GTK+ and must not be modified.

Since 2.6

GtkMenuPositionFunc ()

void
(*GtkMenuPositionFunc) (GtkMenu *menu,
                        gint *x,
                        gint *y,
                        gboolean *push_in,
                        gpointer user_data);

A user function supplied when calling gtk_menu_popup() which controls the positioning of the menu when it is displayed. The function sets the x and y parameters to the coordinates where the menu is to be drawn. To make the menu appear on a different monitor than the mouse pointer, gtk_menu_set_monitor() must be called.

GtkMenuDetachFunc ()

void
(*GtkMenuDetachFunc) (GtkWidget *attach_widget,
                      GtkMenu *menu);

A user function supplied when calling gtk_menu_attach_to_widget() which will be called when the menu is later detached from the widget.

struct GtkMenu

struct GtkMenu;

The “accel-group” property

  “accel-group”              GtkAccelGroup *

The accel group holding accelerators for the menu.

Flags: Read / Write

Since 2.14

The “accel-path” property

  “accel-path”               gchar *

An accel path used to conveniently construct accel paths of child items.

Flags: Read / Write

Default value: NULL

Since 2.14

The “active” property

  “active”                   gint

The index of the currently selected menu item, or -1 if no menu item is selected.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

Since 2.14

The “attach-widget” property

  “attach-widget”            GtkWidget *

The widget the menu is attached to. Setting this property attaches the menu without a GtkMenuDetachFunc. If you need to use a detacher, use gtk_menu_attach_to_widget() directly.

Flags: Read / Write

Since 2.14

The “monitor” property

  “monitor”                  gint

The monitor the menu will be popped up on.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

Since 2.14

The “reserve-toggle-size” property

  “reserve-toggle-size”      gboolean

A boolean that indicates whether the menu reserves space for toggles and icons, regardless of their actual presence.

This property should only be changed from its default value for special-purposes such as tabular menus. Regular menus that are connected to a menu bar or context menus should reserve toggle space for consistency.

Flags: Read / Write

Default value: TRUE

Since 2.18

The “tearoff-state” property

  “tearoff-state”            gboolean

A boolean that indicates whether the menu is torn-off.

Flags: Read / Write

Default value: FALSE

Since 2.6

The “tearoff-title” property

  “tearoff-title”            gchar *

A title that may be displayed by the window manager when this menu is torn-off.

Flags: Read / Write

Default value: NULL

The “bottom-attach” child property

  “bottom-attach”            gint

The row number to attach the bottom of the child to.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

The “left-attach” child property

  “left-attach”              gint

The column number to attach the left side of the child to.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

The “right-attach” child property

  “right-attach”             gint

The column number to attach the right side of the child to.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

The “top-attach” child property

  “top-attach”               gint

The row number to attach the top of the child to.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

The “arrow-placement” style property

  “arrow-placement”          GtkArrowPlacement

Indicates where scroll arrows should be placed.

Flags: Read

Default value: GTK_ARROWS_BOTH

Since 2.16

The “arrow-scaling” style property

  “arrow-scaling”            gfloat

Arbitrary constant to scale down the size of the scroll arrow.

Flags: Read

Allowed values: [0,1]

Default value: 0.7

Since 2.16

The “double-arrows” style property

  “double-arrows”            gboolean

When scrolling, always show both arrows.

Flags: Read

Default value: TRUE

The “horizontal-offset” style property

  “horizontal-offset”        gint

When the menu is a submenu, position it this number of pixels offset horizontally.

Flags: Read

Default value: -2

The “horizontal-padding” style property

  “horizontal-padding”       gint

Extra space at the left and right edges of the menu.

Flags: Read

Allowed values: >= 0

Default value: 0

The “vertical-offset” style property

  “vertical-offset”          gint

When the menu is a submenu, position it this number of pixels offset vertically.

Flags: Read

Default value: 0

The “vertical-padding” style property

  “vertical-padding”         gint

Extra space at the top and bottom of the menu.

Flags: Read

Allowed values: >= 0

Default value: 1

The “move-scroll” signal

void
user_function (GtkMenu      *menu,
               GtkScrollType scroll_type,
               gpointer      user_data)

Flags: Action