## GtkToggleButton

GtkToggleButton — Create buttons which retain their state

## Functions

GtkWidget * | gtk_toggle_button_new ()
GtkWidget * | gtk_toggle_button_new_with_label ()
GtkWidget * | gtk_toggle_button_new_with_mnemonic ()
void | gtk_toggle_button_set_mode ()
gboolean | gtk_toggle_button_get_mode ()
void | gtk_toggle_button_toggled ()
gboolean | gtk_toggle_button_get_active ()
void | gtk_toggle_button_set_active ()
gboolean | gtk_toggle_button_get_inconsistent ()
void | gtk_toggle_button_set_inconsistent ()

## Properties

gboolean | active | Read / Write
gboolean | draw-indicator | Read / Write
gboolean | inconsistent | Read / Write

## Signals

void | toggled | Run First

## Types and Values

struct | GtkToggleButton

## Object Hierarchy

        GObject
        ╰── GInitiallyUnowned
            ╰── GtkWidget
                ╰── GtkContainer
                    ╰── GtkBin
                        ╰── GtkButton
                            ╰── GtkToggleButton
                                ├── GtkCheckButton
                                ╰── GtkMenuButton

## Implemented Interfaces

GtkToggleButton implements AtkImplementorIface, GtkBuildable, GtkActionable and GtkActivatable.

## Includes

    #include <gtk/gtk.h>

## 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()`.

### CSS nodes

GtkToggleButton has a single CSS node with name button. To differentiate it from a plain GtkButton, it gets the .toggle style class.

#### Creating two GtkToggleButton widgets.

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    static void output_state (GtkToggleButton *source, gpointer user_data) {
      printf ("Active: %d\n", gtk_toggle_button_get_active (source));
    }

    void make_toggles (void) {
      GtkWidget *window, *toggle1, *toggle2;
      GtkWidget *box;
      const char *text;

      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);

      text = "Hi, I’m a toggle button.";
      toggle1 = gtk_toggle_button_new_with_label (text);

      // 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_container_add (GTK_CONTAINER (box), toggle1);

      text = "Hi, I’m a toggle button.";
      toggle2 = gtk_toggle_button_new_with_label (text);
      gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (toggle2),
                                  FALSE);
      g_signal_connect (toggle2, "toggled",
                        G_CALLBACK (output_state),
                        NULL);
      gtk_container_add (GTK_CONTAINER (box), toggle2);

      gtk_container_add (GTK_CONTAINER (window), box);
      gtk_widget_show_all (window);
    }

## Functions

### 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.

#### Parameters

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.

#### Parameters

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 can be used to create linked strip of buttons that work like a GtkStackSwitcher.

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

#### Parameters

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()`.

#### Parameters

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.

#### Parameters

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.

#### Parameters

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.

#### Parameters

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()`.

#### Parameters

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.

#### Parameters

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

## Types and Values

### struct GtkToggleButton

    struct GtkToggleButton;

## Property Details

### The `“active”` property

      “active”                   gboolean

If the toggle button should be pressed in.

Owner: GtkToggleButton

Flags: Read / Write

Default value: FALSE

### The `“draw-indicator”` property

      “draw-indicator”           gboolean

If the toggle part of the button is displayed.

Owner: GtkToggleButton

Flags: Read / Write

Default value: FALSE

### The `“inconsistent”` property

      “inconsistent”             gboolean

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

Owner: GtkToggleButton

Flags: Read / Write

Default value: FALSE

## Signal Details

### The `“toggled”` signal

    void
    user_function (GtkToggleButton *togglebutton,
                   gpointer         user_data)

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

#### Parameters

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

Flags: Run First

## See Also

GtkButton, GtkCheckButton, GtkCheckMenuItem