## GtkToolButton GtkToolButton — A GtkToolItem subclass that displays buttons |

## Synopsis

    #include <gtk/gtk.h>

                GtkToolButton;
    GtkToolItem* gtk_tool_button_new            (GtkWidget *icon_widget,
                                                 const gchar *label);
    GtkToolItem* gtk_tool_button_new_from_stock (const gchar *stock_id);
    void        gtk_tool_button_set_label       (GtkToolButton *button,
                                                 const gchar *label);
    const gchar* gtk_tool_button_get_label      (GtkToolButton *button);
    void        gtk_tool_button_set_use_underline
                                                (GtkToolButton *button,
                                                 gboolean use_underline);
    gboolean    gtk_tool_button_get_use_underline
                                                (GtkToolButton *button);
    void        gtk_tool_button_set_stock_id    (GtkToolButton *button,
                                                 const gchar *stock_id);
    const gchar* gtk_tool_button_get_stock_id   (GtkToolButton *button);
    void        gtk_tool_button_set_icon_name   (GtkToolButton *button,
                                                 const gchar *icon_name);
    const gchar* gtk_tool_button_get_icon_name  (GtkToolButton *button);
    void        gtk_tool_button_set_icon_widget (GtkToolButton *button,
                                                 GtkWidget *icon_widget);
    GtkWidget*  gtk_tool_button_get_icon_widget (GtkToolButton *button);
    void        gtk_tool_button_set_label_widget
                                                (GtkToolButton *button,
                                                 GtkWidget *label_widget);
    GtkWidget*  gtk_tool_button_get_label_widget
                                                (GtkToolButton *button);

## Object Hierarchy

      GObject
       +----GtkObject
             +----GtkWidget
                   +----GtkContainer
                         +----GtkBin
                               +----GtkToolItem
                                     +----GtkToolButton
                                           +----GtkMenuToolButton
                                           +----GtkToggleToolButton

## Implemented Interfaces

GtkToolButton implements AtkImplementorIface.

## Properties

      "icon-name"            gchararray            : Read / Write
      "icon-widget"          GtkWidget             : Read / Write
      "label"                gchararray            : Read / Write
      "label-widget"         GtkWidget             : Read / Write
      "stock-id"             gchararray            : Read / Write
      "use-underline"        gboolean              : Read / Write

## Signal Prototypes

    "clicked"   void        user_function      (GtkToolButton *toolbutton,
                                                gpointer user_data);

## Description

GtkToolButtons are GtkToolItems containing buttons.

Use `gtk_tool_button_new()` to create a new GtkToolButton. Use `gtk_tool_button_new_with_stock()` to create a GtkToolButton containing a stock item.

The label of a GtkToolButton is determined by the properties "label_widget", "label", and "stock_id". If "label_widget" is non-`NULL`, then that widget is used as the label. Otherwise, if "label" is non-`NULL`, that string is used as the label. Otherwise, if "stock_id" is non-`NULL`, the label is determined by the stock item. Otherwise, the button does not have a label.

The icon of a GtkToolButton is determined by the properties "icon_widget" and "stock_id". If "icon_widget" is non-`NULL`, then that widget is used as the icon. Otherwise, if "stock_id" is non-`NULL`, the icon is determined by the stock item. Otherwise, the button does not have a label.

## Details

### GtkToolButton

    typedef struct _GtkToolButton GtkToolButton;

The GtkToolButton struct contains only private. It should only be accessed with the function described below.

### gtk_tool_button_new ()

    GtkToolItem* gtk_tool_button_new            (GtkWidget *icon_widget,
                                                 const gchar *label);

Creates a new `GtkToolButton` using `icon_widget` as icon and `label` as label.

`icon_widget` : | a widget that will be used as icon widget, or `NULL`
`label` : | a string that will be used as label, or `NULL`
Returns : | A new GtkToolButton

Since 2.4

### gtk_tool_button_new_from_stock ()

    GtkToolItem* gtk_tool_button_new_from_stock (const gchar *stock_id);

Creates a new GtkToolButton containing the image and text from a stock item. Some stock ids have preprocessor macros like GTK_STOCK_OK and GTK_STOCK_APPLY.

It is an error if `stock_id` is not a name of a stock item.

`stock_id` : | the name of the stock item
Returns : | A new GtkToolButton

Since 2.4

### gtk_tool_button_set_label ()

    void        gtk_tool_button_set_label       (GtkToolButton *button,
                                                 const gchar *label);

Sets `label` as the label used for the tool button. The "label" property only has an effect if not overridden by a non-`NULL` "label_widget" property. If both the "label_widget" and "label" properties are `NULL`, the label is determined by the "stock_id" property. If the "stock_id" property is also `NULL`, `button` will not have a label.

`button` : | a GtkToolButton
`label` : | a string that will be used as label, or `NULL`.

Since 2.4

### gtk_tool_button_get_label ()

    const gchar* gtk_tool_button_get_label      (GtkToolButton *button);

Returns the label used by the tool button, or `NULL` if the tool button doesn't have a label. or uses a the label from a stock item. The returned string is owned by GTK+, and must not be modified or freed.

`button` : | a GtkToolButton
Returns : | The label, or `NULL`

Since 2.4

### gtk_tool_button_set_use_underline ()

    void        gtk_tool_button_set_use_underline
                                                (GtkToolButton *button,
                                                 gboolean use_underline);

If set, an underline in the label property indicates that the next character should be used for the mnemonic accelerator key in the overflow menu. For example, if the label property is "_Open" and `use_underline` is `TRUE`, the label on the tool button will be "Open" and the item on the overflow menu will have an underlined 'O'.

Labels shown on tool buttons never have mnemonics on them; this property only affects the menu item on the overflow menu.

`button` : | a GtkToolButton
`use_underline` : | whether the button label has the form "_Open"

Since 2.4

### gtk_tool_button_get_use_underline ()

    gboolean    gtk_tool_button_get_use_underline
                                                (GtkToolButton *button);

Returns whether underscores in the label property are used as mnemonics on menu items on the overflow menu. See `gtk_tool_button_set_use_underline()`.

`button` : | a GtkToolButton
Returns : | `TRUE` if underscores in the label property are used as mnemonics on menu items on the overflow menu.

Since 2.4

### gtk_tool_button_set_stock_id ()

    void        gtk_tool_button_set_stock_id    (GtkToolButton *button,
                                                 const gchar *stock_id);

Sets the name of the stock item. See `gtk_tool_button_new_from_stock()`. The stock_id property only has an effect if not overridden by non-`NULL` "label" and "icon_widget" properties.

`button` : | a GtkToolButton
`stock_id` : | a name of a stock item, or `NULL`

Since 2.4

### gtk_tool_button_get_stock_id ()

    const gchar* gtk_tool_button_get_stock_id   (GtkToolButton *button);

Returns the name of the stock item. See `gtk_tool_button_set_stock_id()`. The returned string is owned by GTK+ and must not be freed or modifed.

`button` : | a GtkToolButton
Returns : | the name of the stock item for `button`.

Since 2.4

### gtk_tool_button_set_icon_name ()

    void        gtk_tool_button_set_icon_name   (GtkToolButton *button,
                                                 const gchar *icon_name);

Sets the icon for the tool button from a named themed icon. See the docs for GtkIconTheme for more details. The "icon_name" property only has an effect if not overridden by non-`NULL` "label", "icon_widget" and "stock_id" properties.

`button` : | a GtkToolButton
`icon_name` : | the name of the themed icon

Since 2.8

### gtk_tool_button_get_icon_name ()

    const gchar* gtk_tool_button_get_icon_name  (GtkToolButton *button);

Returns the name of the themed icon for the tool button, see `gtk_tool_button_set_icon_name()`.

`button` : | a GtkToolButton
Returns : | the icon name or `NULL` if the tool button has no themed icon

Since 2.8

### gtk_tool_button_set_icon_widget ()

    void        gtk_tool_button_set_icon_widget (GtkToolButton *button,
                                                 GtkWidget *icon_widget);

Sets `icon` as the widget used as icon on `button`. If `icon_widget` is `NULL` the icon is determined by the "stock_id" property. If the "stock_id" property is also `NULL`, `button` will not have an icon.

`button` : | a GtkToolButton
`icon_widget` : | the widget used as icon, or `NULL`

Since 2.4

### gtk_tool_button_get_icon_widget ()

    GtkWidget*  gtk_tool_button_get_icon_widget (GtkToolButton *button);

Return the widget used as icon widget on `button`. See `gtk_tool_button_set_icon_widget()`.

`button` : | a GtkToolButton
Returns : | The widget used as icon on `button`, or `NULL`.

Since 2.4

### gtk_tool_button_set_label_widget ()

    void        gtk_tool_button_set_label_widget
                                                (GtkToolButton *button,
                                                 GtkWidget *label_widget);

Sets `label_widget` as the widget that will be used as the label for `button`. If `label_widget` is `NULL` the "label" property is used as label. If "label" is also `NULL`, the label in the stock item determined by the "stock_id" property is used as label. If "stock_id" is also `NULL`, `button` does not have a label.

`button` : | a GtkToolButton
`label_widget` : | the widget used as label, or `NULL`

Since 2.4

### gtk_tool_button_get_label_widget ()

    GtkWidget*  gtk_tool_button_get_label_widget
                                                (GtkToolButton *button);

Returns the widget used as label on `button`. See `gtk_tool_button_set_label_widget()`.

`button` : | a GtkToolButton
Returns : | The widget used as label on `button`, or `NULL`.

Since 2.4

## Properties

### The "`icon-name`" property

      "icon-name"            gchararray            : Read / Write

The name of the themed icon displayed on the item. This property only has an effect if not overridden by "label", "icon_widget" or "stock_id" properties.

Default value: NULL

Since 2.8

### The "`icon-widget`" property

      "icon-widget"          GtkWidget             : Read / Write

Icon widget to display in the item.

### The "`label`" property

      "label"                gchararray            : Read / Write

Text to show in the item.

Default value: NULL

### The "`label-widget`" property

      "label-widget"         GtkWidget             : Read / Write

Widget to use as the item label.

### The "`stock-id`" property

      "stock-id"             gchararray            : Read / Write

The stock icon displayed on the item.

Default value: NULL

### The "`use-underline`" property

      "use-underline"        gboolean              : Read / Write

If set, an underline in the label property indicates that the next character should be used for the mnemonic accelerator key in the overflow menu.

Default value: FALSE

## Signals

### The "clicked" signal

    void        user_function                  (GtkToolButton *toolbutton,
                                                gpointer user_data);

This signal is emitted when the tool button is clicked with the mouse or activated with the keyboard.

`toolbutton` : | the object that emitted the signal
`user_data` : | user data set when the signal handler was connected.

## See Also

GtkToolbar | The toolbar widget
GtkMenuToolButton | A subclass of GtkToolButton that displays on the toolbar a button with an additional dropdown menu
GtkToggleToolButton | A subclass of GtkToolButton that displays toggle buttons on the toolbar
GtkRadioToolButton | A subclass of GtkToolButton that displays radio buttons on the toolbar
GtkSeparatorToolItem | A subclass of GtkToolItem that separates groups of items on a toolbar