GtkToggleButton

## GtkToggleButton GtkToggleButton — Create buttons which retain their state |

## Synopsis

    #include <gtk/gtk.h>

    struct              GtkToggleButton;
    GtkWidget *         gtk_toggle_button_new               (void);
    GtkWidget *         gtk_toggle_button_new_with_label    (const gchar *label);
    GtkWidget *         gtk_toggle_button_new_with_mnemonic (const gchar *label);
    void                gtk_toggle_button_set_mode          (GtkToggleButton *toggle_button,
                                                             gboolean draw_indicator);
    gboolean            gtk_toggle_button_get_mode          (GtkToggleButton *toggle_button);
    void                gtk_toggle_button_toggled           (GtkToggleButton *toggle_button);
    gboolean            gtk_toggle_button_get_active        (GtkToggleButton *toggle_button);
    void                gtk_toggle_button_set_active        (GtkToggleButton *toggle_button,
                                                             gboolean is_active);
    gboolean            gtk_toggle_button_get_inconsistent  (GtkToggleButton *toggle_button);
    void                gtk_toggle_button_set_inconsistent  (GtkToggleButton *toggle_button,
                                                             gboolean setting);

## Object Hierarchy

      GObject
       +----GInitiallyUnowned
             +----GtkWidget
                   +----GtkContainer
                         +----GtkBin
                               +----GtkButton
                                     +----GtkToggleButton
                                           +----GtkCheckButton
                                           +----GtkMenuButton

## Implemented Interfaces

GtkToggleButton implements AtkImplementorIface, GtkBuildable, GtkActionable and GtkActivatable.

## Properties

      "active"                   gboolean              : Read / Write
      "draw-indicator"           gboolean              : Read / Write
      "inconsistent"             gboolean              : Read / Write

## Signals

      "toggled"                                        : Run First

## Description

A GtkToggleButton is a GtkButton which will remain 'pressed-in' when clicked. Clicking again will cause the toggle button to return to its normal state.

A toggle button is created by calling either `gtk_toggle_button_new()` or `gtk_toggle_button_new_with_label()`. If using the former, it is advisable to pack a widget, (such as a GtkLabel and/or a GtkImage), into the toggle button's container. (See GtkButton for more information).

The state of a GtkToggleButton can be set specifically using `gtk_toggle_button_set_active()`, and retrieved using `gtk_toggle_button_get_active()`.

To simply switch the state of a toggle button, use `gtk_toggle_button_toggled()`.

Example 24. Creating two GtkToggleButton widgets.

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    void make_toggles (void) {
       GtkWidget *dialog, *toggle1, *toggle2;

       dialog = gtk_dialog_new ();
       toggle1 = gtk_toggle_button_new_with_label ("Hi, i'm a toggle button.");

       // Makes this toggle button invisible
       gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (toggle1), TRUE);

       g_signal_connect (toggle1, "toggled",
                         G_CALLBACK (output_state), NULL);
       gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->action_area),
                           toggle1, FALSE, FALSE, 2);

       toggle2 = gtk_toggle_button_new_with_label ("Hi, i'm another toggle button.");
       gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (toggle2), FALSE);
       g_signal_connect (toggle2, "toggled",
                         G_CALLBACK (output_state), NULL);
       gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->action_area),
                           toggle2, FALSE, FALSE, 2);

       gtk_widget_show_all (dialog);
    }

## Details

### struct GtkToggleButton

    struct GtkToggleButton;

### gtk_toggle_button_new ()

    GtkWidget *         gtk_toggle_button_new               (void);

Creates a new toggle button. A widget should be packed into the button, as in `gtk_button_new()`.

Returns : | a new toggle button.

### gtk_toggle_button_new_with_label ()

    GtkWidget *         gtk_toggle_button_new_with_label    (const gchar *label);

Creates a new toggle button with a text label.

`label` : | a string containing the message to be placed in the toggle button.
Returns : | a new toggle button.

### gtk_toggle_button_new_with_mnemonic ()

    GtkWidget *         gtk_toggle_button_new_with_mnemonic (const gchar *label);

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

`label` : | the text of the button, with an underscore in front of the mnemonic character
Returns : | a new GtkToggleButton

### gtk_toggle_button_set_mode ()

    void                gtk_toggle_button_set_mode          (GtkToggleButton *toggle_button,
                                                             gboolean draw_indicator);

Sets whether the button is displayed as a separate indicator and label. You can call this function on a checkbutton or a radiobutton with `draw_indicator` = `FALSE` to make the button look like a normal button

This function only affects instances of classes like GtkCheckButton and GtkRadioButton that derive from GtkToggleButton, not instances of GtkToggleButton itself.

`toggle_button` : | a GtkToggleButton
`draw_indicator` : | if `TRUE`, draw the button as a separate indicator and label; if `FALSE`, draw the button like a normal button

### gtk_toggle_button_get_mode ()

    gboolean            gtk_toggle_button_get_mode          (GtkToggleButton *toggle_button);

Retrieves whether the button is displayed as a separate indicator and label. See `gtk_toggle_button_set_mode()`.

`toggle_button` : | a GtkToggleButton
Returns : | `TRUE` if the togglebutton is drawn as a separate indicator and label.

### gtk_toggle_button_toggled ()

    void                gtk_toggle_button_toggled           (GtkToggleButton *toggle_button);

Emits the "toggled" signal on the GtkToggleButton. There is no good reason for an application ever to call this function.

`toggle_button` : | a GtkToggleButton.

### gtk_toggle_button_get_active ()

    gboolean            gtk_toggle_button_get_active        (GtkToggleButton *toggle_button);

Queries a GtkToggleButton and returns its current state. Returns `TRUE` if the toggle button is pressed in and `FALSE` if it is raised.

`toggle_button` : | a GtkToggleButton.
Returns : | a gboolean value.

### gtk_toggle_button_set_active ()

    void                gtk_toggle_button_set_active        (GtkToggleButton *toggle_button,
                                                             gboolean is_active);

Sets the status of the toggle button. Set to `TRUE` if you want the GtkToggleButton to be 'pressed in', and `FALSE` to raise it. This action causes the "toggled" signal and the "clicked" signal to be emitted.

`toggle_button` : | a GtkToggleButton.
`is_active` : | `TRUE` or `FALSE`.

### gtk_toggle_button_get_inconsistent ()

    gboolean            gtk_toggle_button_get_inconsistent  (GtkToggleButton *toggle_button);

Gets the value set by `gtk_toggle_button_set_inconsistent()`.

`toggle_button` : | a GtkToggleButton
Returns : | `TRUE` if the button is displayed as inconsistent, `FALSE` otherwise

### gtk_toggle_button_set_inconsistent ()

    void                gtk_toggle_button_set_inconsistent  (GtkToggleButton *toggle_button,
                                                             gboolean setting);

If the user has selected a range of elements (such as some text or spreadsheet cells) that are affected by a toggle button, and the current values in that range are inconsistent, you may want to display the toggle in an "in between" state. This function turns on "in between" display. Normally you would turn off the inconsistent state again if the user toggles the toggle button. This has to be done manually, `gtk_toggle_button_set_inconsistent()` only affects visual appearance, it doesn't affect the semantics of the button.

`toggle_button` : | a GtkToggleButton
`setting` : | `TRUE` if state is inconsistent

## Property Details

### The `"active"` property

      "active"                   gboolean              : Read / Write

If the toggle button should be pressed in.

Default value: FALSE

### The `"draw-indicator"` property

      "draw-indicator"           gboolean              : Read / Write

If the toggle part of the button is displayed.

Default value: FALSE

### The `"inconsistent"` property

      "inconsistent"             gboolean              : Read / Write

If the toggle button is in an "in between" state.

Default value: FALSE

## Signal Details

### The `"toggled"` signal

    void                user_function                      (GtkToggleButton *togglebutton,
                                                            gpointer         user_data)         : Run First

Should be connected if you wish to perform an action whenever the GtkToggleButton's state is changed.

`togglebutton` : | the object which received the signal.
`user_data` : | user data set when the signal handler was connected.

## See Also

GtkButton, GtkCheckButton, GtkCheckMenuItem