Synopsis
#include <gtk/gtk.h>
GtkRadioButton;
GtkWidget* gtk_radio_button_new (GSList *group);
GtkWidget* gtk_radio_button_new_from_widget (GtkRadioButton *radio_group_member);
GtkWidget* gtk_radio_button_new_with_label (GSList *group,
const gchar *label);
GtkWidget* gtk_radio_button_new_with_label_from_widget
(GtkRadioButton *radio_group_member,
const gchar *label);
GtkWidget* gtk_radio_button_new_with_mnemonic (GSList *group,
const gchar *label);
GtkWidget* gtk_radio_button_new_with_mnemonic_from_widget
(GtkRadioButton *radio_group_member,
const gchar *label);
#define gtk_radio_button_group
void gtk_radio_button_set_group (GtkRadioButton *radio_button,
GSList *group);
GSList* gtk_radio_button_get_group (GtkRadioButton *radio_button);
Object Hierarchy
GObject
+----GInitiallyUnowned
+----GtkObject
+----GtkWidget
+----GtkContainer
+----GtkBin
+----GtkButton
+----GtkToggleButton
+----GtkCheckButton
+----GtkRadioButton
DescriptionA single radio button performs the same basic function as a GtkCheckButton, as its position in the object hierarchy reflects. It is only when multiple radio buttons are grouped together that they become a different user interface component in their own right. Every radio button is a member of some group of radio buttons. When one is selected, all other radio buttons in the same group are deselected. A GtkRadioButton is one way of giving the user a choice from many options.
Radio button widgets are created with
Alternatively, when adding widgets to an existing group of radio buttons,
use
To retrieve the group a GtkRadioButton is assigned to, use
To remove a GtkRadioButton from one group and make it part of a new one, use The group list does not need to be freed, as each GtkRadioButton will remove itself and its list item when it is destroyed.
Example 12. How to create a group of two radio buttons.
void create_radio_buttons (void) {
GtkWidget *window, *radio1, *radio2, *box, *entry;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
box = gtk_vbox_new (TRUE, 2);
/* 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, TRUE, TRUE, 2);
gtk_box_pack_start (GTK_BOX (box), radio2, TRUE, TRUE, 2);
gtk_container_add (GTK_CONTAINER (window), box);
gtk_widget_show_all (window);
return;
}
When an unselected button in the group is clicked the clicked button
receives the "toggled" signal, as does the previously selected button.
Inside the "toggled" handler, DetailsGtkRadioButtontypedef struct _GtkRadioButton GtkRadioButton; Contains only private data that should be read and manipulated using the functions below. 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
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
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
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_radio_button_group#define gtk_radio_button_group gtk_radio_button_get_group Warning
Deprecated compatibility macro. Use 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.
Signal DetailsThe
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the object which received the signal |
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user data set when the signal handler was connected. |
Since 2.4