GTK+ 3 Reference Manual: GtkInfoBar

## GtkInfoBar GtkInfoBar — Report important messages to the user |

## Synopsis

    #include <gtk/gtk.h>

    struct              GtkInfoBar;
    GtkWidget *         gtk_info_bar_new                    (void);
    GtkWidget *         gtk_info_bar_new_with_buttons       (const gchar *first_button_text,
                                                             ...);
    void                gtk_info_bar_add_action_widget      (GtkInfoBar *info_bar,
                                                             GtkWidget *child,
                                                             gint response_id);
    GtkWidget *         gtk_info_bar_add_button             (GtkInfoBar *info_bar,
                                                             const gchar *button_text,
                                                             gint response_id);
    void                gtk_info_bar_add_buttons            (GtkInfoBar *info_bar,
                                                             const gchar *first_button_text,
                                                             ...);
    void                gtk_info_bar_set_response_sensitive (GtkInfoBar *info_bar,
                                                             gint response_id,
                                                             gboolean setting);
    void                gtk_info_bar_set_default_response   (GtkInfoBar *info_bar,
                                                             gint response_id);
    void                gtk_info_bar_response               (GtkInfoBar *info_bar,
                                                             gint response_id);
    void                gtk_info_bar_set_message_type       (GtkInfoBar *info_bar,
                                                             GtkMessageType message_type);
    GtkMessageType      gtk_info_bar_get_message_type       (GtkInfoBar *info_bar);
    GtkWidget *         gtk_info_bar_get_action_area        (GtkInfoBar *info_bar);
    GtkWidget *         gtk_info_bar_get_content_area       (GtkInfoBar *info_bar);
    gboolean            gtk_info_bar_get_show_close_button  (GtkInfoBar *info_bar);
    void                gtk_info_bar_set_show_close_button  (GtkInfoBar *info_bar,
                                                             gboolean setting);

## Object Hierarchy

      GObject
       +----GInitiallyUnowned
             +----GtkWidget
                   +----GtkContainer
                         +----GtkBox
                               +----GtkInfoBar

## Implemented Interfaces

GtkInfoBar implements AtkImplementorIface, GtkBuildable and GtkOrientable.

## Properties

      "message-type"             GtkMessageType        : Read / Write / Construct
      "show-close-button"        gboolean              : Read / Write / Construct

## Style Properties

      "action-area-border"       gint                  : Read
      "button-spacing"           gint                  : Read
      "content-area-border"      gint                  : Read
      "content-area-spacing"     gint                  : Read

## Signals

      "close"                                          : Action
      "response"                                       : Run Last

## Description

GtkInfoBar is a widget that can be used to show messages to the user without showing a dialog. It is often temporarily shown at the top or bottom of a document. In contrast to GtkDialog, which has a action area at the bottom, GtkInfoBar has an action area at the side.

The API of GtkInfoBar is very similar to GtkDialog, allowing you to add buttons to the action area with `gtk_info_bar_add_button()` or `gtk_info_bar_new_with_buttons()`. The sensitivity of action widgets can be controlled with `gtk_info_bar_set_response_sensitive()`. To add widgets to the main content area of a GtkInfoBar, use `gtk_info_bar_get_content_area()` and add your widgets to the container.

Similar to GtkMessageDialog, the contents of a GtkInfoBar can by classified as error message, warning, informational message, etc, by using `gtk_info_bar_set_message_type()`. GTK+ may use the message type to determine how the message is displayed.

Example 20. Simple GtkInfoBar usage.

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    /* set up info bar */
    info_bar = gtk_info_bar_new ();
    gtk_widget_set_no_show_all (info_bar, TRUE);
    message_label = gtk_label_new ("");
    gtk_widget_show (message_label);
    content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (info_bar));
    gtk_container_add (GTK_CONTAINER (content_area), message_label);
    gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
                             _("_OK"), GTK_RESPONSE_OK);
    g_signal_connect (info_bar, "response",
                      G_CALLBACK (gtk_widget_hide), NULL);
    gtk_grid_attach (GTK_GRID (grid),
                     info_bar,
                     0, 2, 1, 1);

    /* ... */

    /* show an error message */
    gtk_label_set_text (GTK_LABEL (message_label), error_message);
    gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
                                   GTK_MESSAGE_ERROR);
    gtk_widget_show (info_bar);

### GtkInfoBar as GtkBuildable

The GtkInfoBar implementation of the GtkBuildable interface exposes the content area and action area as internal children with the names "content_area" and "action_area".

GtkInfoBar supports a custom <action-widgets> element, which can contain multiple <action-widget> elements. The "response" attribute specifies a numeric response, and the content of the element is the id of widget (which should be a child of the dialogs `action_area`).

## Details

### struct GtkInfoBar

    struct GtkInfoBar;

### gtk_info_bar_new ()

    GtkWidget *         gtk_info_bar_new                    (void);

Creates a new GtkInfoBar object.

Returns : | a new GtkInfoBar object

Since 2.18

### gtk_info_bar_new_with_buttons ()

    GtkWidget *         gtk_info_bar_new_with_buttons       (const gchar *first_button_text,
                                                             ...);

Creates a new GtkInfoBar with buttons. Button text/response ID pairs should be listed, with a `NULL` pointer ending the list. Button text can be either a stock ID such as `GTK_STOCK_OK`, or some arbitrary text. A response ID can be any positive number, or one of the values in the GtkResponseType enumeration. If the user clicks one of these dialog buttons, GtkInfoBar will emit the "response" signal with the corresponding response ID.

`first_button_text` : | stock ID or text to go in first button, or `NULL`. [allow-none]
`...` : | response ID for first button, then additional buttons, ending with `NULL`
Returns : | a new GtkInfoBar

### gtk_info_bar_add_action_widget ()

    void                gtk_info_bar_add_action_widget      (GtkInfoBar *info_bar,
                                                             GtkWidget *child,
                                                             gint response_id);

Add an activatable widget to the action area of a GtkInfoBar, connecting a signal handler that will emit the "response" signal on the message area when the widget is activated. The widget is appended to the end of the message areas action area.

`info_bar` : | a GtkInfoBar
`child` : | an activatable widget
`response_id` : | response ID for `child`

Since 2.18

### gtk_info_bar_add_button ()

    GtkWidget *         gtk_info_bar_add_button             (GtkInfoBar *info_bar,
                                                             const gchar *button_text,
                                                             gint response_id);

Adds a button with the given text and sets things up so that clicking the button will emit the "response" signal with the given response_id. The button is appended to the end of the info bars's action area. The button widget is returned, but usually you don't need it.

`info_bar` : | a GtkInfoBar
`button_text` : | text of button
`response_id` : | response ID for the button
Returns : | the GtkButton widget that was added. [transfer none]

Since 2.18

### gtk_info_bar_add_buttons ()

    void                gtk_info_bar_add_buttons            (GtkInfoBar *info_bar,
                                                             const gchar *first_button_text,
                                                             ...);

Adds more buttons, same as calling `gtk_info_bar_add_button()` repeatedly. The variable argument list should be `NULL`-terminated as with `gtk_info_bar_new_with_buttons()`. Each button must have both text and response ID.

`info_bar` : | a GtkInfoBar
`first_button_text` : | button text or stock ID
`...` : | response ID for first button, then more text-response_id pairs, ending with `NULL`

Since 2.18

### gtk_info_bar_set_response_sensitive ()

    void                gtk_info_bar_set_response_sensitive (GtkInfoBar *info_bar,
                                                             gint response_id,
                                                             gboolean setting);

Calls gtk_widget_set_sensitive (widget, setting) for each widget in the info bars's action area with the given response_id. A convenient way to sensitize/desensitize dialog buttons.

`info_bar` : | a GtkInfoBar
`response_id` : | a response ID
`setting` : | TRUE for sensitive

Since 2.18

### gtk_info_bar_set_default_response ()

    void                gtk_info_bar_set_default_response   (GtkInfoBar *info_bar,
                                                             gint response_id);

Sets the last widget in the info bar's action area with the given response_id as the default widget for the dialog. Pressing "Enter" normally activates the default widget.

Note that this function currently requires `info_bar` to be added to a widget hierarchy.

`info_bar` : | a GtkInfoBar
`response_id` : | a response ID

Since 2.18

### gtk_info_bar_response ()

    void                gtk_info_bar_response               (GtkInfoBar *info_bar,
                                                             gint response_id);

Emits the 'response' signal with the given `response_id`.

`info_bar` : | a GtkInfoBar
`response_id` : | a response ID

Since 2.18

### gtk_info_bar_set_message_type ()

    void                gtk_info_bar_set_message_type       (GtkInfoBar *info_bar,
                                                             GtkMessageType message_type);

Sets the message type of the message area. GTK+ uses this type to determine what color to use when drawing the message area.

`info_bar` : | a GtkInfoBar
`message_type` : | a GtkMessageType

Since 2.18

### gtk_info_bar_get_message_type ()

    GtkMessageType      gtk_info_bar_get_message_type       (GtkInfoBar *info_bar);

Returns the message type of the message area.

`info_bar` : | a GtkInfoBar
Returns : | the message type of the message area.

Since 2.18

### gtk_info_bar_get_action_area ()

    GtkWidget *         gtk_info_bar_get_action_area        (GtkInfoBar *info_bar);

Returns the action area of `info_bar`.

`info_bar` : | a GtkInfoBar
Returns : | the action area. [transfer none]

Since 2.18

### gtk_info_bar_get_content_area ()

    GtkWidget *         gtk_info_bar_get_content_area       (GtkInfoBar *info_bar);

Returns the content area of `info_bar`.

`info_bar` : | a GtkInfoBar
Returns : | the content area. [transfer none]

Since 2.18

### gtk_info_bar_get_show_close_button ()

    gboolean            gtk_info_bar_get_show_close_button  (GtkInfoBar *info_bar);

Returns whether the widget will display a standard close button.

`info_bar` : | a GtkInfoBar
Returns : | `TRUE` if the widget displays standard close button

Since 3.10

### gtk_info_bar_set_show_close_button ()

    void                gtk_info_bar_set_show_close_button  (GtkInfoBar *info_bar,
                                                             gboolean setting);

If true, a standard close button is shown. When clicked it emits the response `GTK_RESPONSE_CLOSE`.

`info_bar` : | a GtkInfoBar
`setting` : | `TRUE` to include a close button

Since 3.10

## Property Details

### The `"message-type"` property

      "message-type"             GtkMessageType        : Read / Write / Construct

The type of the message.

The type may be used to determine the appearance of the info bar.

Default value: GTK_MESSAGE_INFO

Since 2.18

### The `"show-close-button"` property

      "show-close-button"        gboolean              : Read / Write / Construct

Whether to include a standard close button.

Default value: FALSE

Since 3.10

## Style Property Details

### The `"action-area-border"` style property

      "action-area-border"       gint                  : Read

### Warning

`GtkInfoBar:action-area-border` has been deprecated since version 3.6 and should not be used in newly-written code. Use `gtk_container_set_border_width()`

Width of the border around the action area of the info bar.

Allowed values: >= 0

Default value: 5

Since 2.18

### The `"button-spacing"` style property

      "button-spacing"           gint                  : Read

### Warning

`GtkInfoBar:button-spacing` has been deprecated since version 3.6 and should not be used in newly-written code. Use `gtk_box_set_spacing()`

Spacing between buttons in the action area of the info bar.

Allowed values: >= 0

Default value: 6

Since 2.18

### The `"content-area-border"` style property

      "content-area-border"      gint                  : Read

### Warning

`GtkInfoBar:content-area-border` has been deprecated since version 3.6 and should not be used in newly-written code. Use `gtk_container_set_border_width()`

The width of the border around the content content area of the info bar.

Allowed values: >= 0

Default value: 8

Since 2.18

### The `"content-area-spacing"` style property

      "content-area-spacing"     gint                  : Read

### Warning

`GtkInfoBar:content-area-spacing` has been deprecated since version 3.6 and should not be used in newly-written code. Use `gtk_box_set_spacing()`

The default spacing used between elements of the content area of the info bar.

Allowed values: >= 0

Default value: 16

Since 2.18

## Signal Details

### The `"close"` signal

    void                user_function                      (GtkInfoBar *arg0,
                                                            gpointer    user_data)      : Action

The ::close signal is a keybinding signal which gets emitted when the user uses a keybinding to dismiss the info bar.

The default binding for this signal is the Escape key.

`user_data` : | user data set when the signal handler was connected.

Since 2.18

### The `"response"` signal

    void                user_function                      (GtkInfoBar *info_bar,
                                                            gint        response_id,
                                                            gpointer    user_data)        : Run Last

Emitted when an action widget is clicked or the application programmer calls `gtk_dialog_response()`. The `response_id` depends on which action widget was clicked.

`info_bar` : | the object on which the signal is emitted
`response_id` : | the response ID
`user_data` : | user data set when the signal handler was connected.

Since 2.18

## See Also

GtkStatusbar, GtkMessageDialog