CSS nodes

1
2
3

radiobutton
├── radio
╰── <child>

A GtkRadioButton with indicator (see gtk_toggle_button_set_mode()) has a main CSS node with name radiobutton and a subnode with name radio.

1
2
3

button.radio
├── radio
╰── <child>

A GtkRadioButton without indicator changes the name of its main node to button and adds a .radio style class to it. The subnode is invisible in this case.

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

void create_radio_buttons (void) {

   GtkWidget *window, *radio1, *radio2, *box, *entry;
   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
   box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
   gtk_box_set_homogeneous (GTK_BOX (box), TRUE);

   // Create a radio button with a GtkEntry widget
   radio1 = gtk_radio_button_new (NULL);
   entry = gtk_entry_new ();
   gtk_container_add (GTK_CONTAINER (radio1), entry);


   // Create a radio button with a label
   radio2 = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (radio1),
                                                         "I’m the second radio button.");

   // Pack them into a box, then show all the widgets
   gtk_box_pack_start (GTK_BOX (box), radio1);
   gtk_box_pack_start (GTK_BOX (box), radio2);
   gtk_container_add (GTK_CONTAINER (window), box);
   gtk_widget_show_all (window);
   return;
}

gtk_radio_button_new ()

GtkWidget *
gtk_radio_button_new (GSList *group);

Creates a new GtkRadioButton. To be of any practical value, a widget should then be packed into the radio button.

gtk_radio_button_new_from_widget ()

GtkWidget *
gtk_radio_button_new_from_widget (GtkRadioButton *radio_group_member);

Creates a new GtkRadioButton, adding it to the same group as radio_group_member . As with gtk_radio_button_new(), a widget should be packed into the radio button.

[constructor]

gtk_radio_button_new_with_label ()

GtkWidget *
gtk_radio_button_new_with_label (GSList *group,
                                 const gchar *label);

Creates a new GtkRadioButton with a text label.

gtk_radio_button_new_with_label_from_widget ()

GtkWidget *
gtk_radio_button_new_with_label_from_widget
                               (GtkRadioButton *radio_group_member,
                                const gchar *label);

Creates a new GtkRadioButton with a text label, adding it to the same group as radio_group_member .

[constructor]

gtk_radio_button_new_with_mnemonic ()

GtkWidget *
gtk_radio_button_new_with_mnemonic (GSList *group,
                                    const gchar *label);

Creates a new GtkRadioButton containing a label, adding it to the same group as group . The label will be created using gtk_label_new_with_mnemonic(), so underscores in label indicate the mnemonic for the button.

gtk_radio_button_new_with_mnemonic_from_widget ()

GtkWidget *
gtk_radio_button_new_with_mnemonic_from_widget
                               (GtkRadioButton *radio_group_member,
                                const gchar *label);

Creates a new GtkRadioButton containing a label. The label will be created using gtk_label_new_with_mnemonic(), so underscores in label indicate the mnemonic for the button.

[constructor]

gtk_radio_button_set_group ()

void
gtk_radio_button_set_group (GtkRadioButton *radio_button,
                            GSList *group);

Sets a GtkRadioButton’s group. It should be noted that this does not change the layout of your interface in any way, so if you are changing the group, it is likely you will need to re-arrange the user interface to reflect these changes.

gtk_radio_button_get_group ()

GSList *
gtk_radio_button_get_group (GtkRadioButton *radio_button);

Retrieves the group assigned to a radio button.

gtk_radio_button_join_group ()

void
gtk_radio_button_join_group (GtkRadioButton *radio_button,
                             GtkRadioButton *group_source);

Joins a GtkRadioButton object to the group of another GtkRadioButton object

Use this in language bindings instead of the gtk_radio_button_get_group() and gtk_radio_button_set_group() methods

A common way to set up a group of radio buttons is the following:

1
2
3
4
5
6
7
8
9
10

GtkRadioButton *radio_button;
GtkRadioButton *last_button;

while (some_condition)
  {
     radio_button = gtk_radio_button_new (NULL);

     gtk_radio_button_join_group (radio_button, last_button);
     last_button = radio_button;
  }

Since: 3.0

struct GtkRadioButton

struct GtkRadioButton;

The “group” property

  “group”                    GtkRadioButton *

Sets a new group for a radio button.

Owner: GtkRadioButton

Flags: Write

The “group-changed” signal

void
user_function (GtkRadioButton *button,
               gpointer        user_data)

Emitted when the group of radio buttons that a radio button belongs to changes. This is emitted when a radio button switches from being alone to being part of a group of 2 or more buttons, or vice-versa, and when a button is moved from one group of 2 or more buttons to a different one, but not when the composition of the group that a button belongs to changes.

Flags: Run First

Since: 2.4