gtk.CheckMenuItem
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## gtk.CheckMenuItem

gtk.CheckMenuItem — a menu item with a check box.

## Synopsis

    class gtk.CheckMenuItem(gtk.MenuItem):
        gtk.CheckMenuItem(label=None, use_underline=True)
        def set_active(is_active)
        def get_active()
        def toggled()
        def set_inconsistent(setting)
        def get_inconsistent()
        def set_draw_as_radio(draw_as_radio)
        def get_draw_as_radio()

## Ancestry

    +-- gobject.GObject
      +-- gtk.Object
        +-- gtk.Widget
          +-- gtk.Container
            +-- gtk.Bin
              +-- gtk.Item
                +-- gtk.MenuItem
                  +-- gtk.CheckMenuItem

## gtk.CheckMenuItem Properties

gtk.Object Properties

gtk.Widget Properties

gtk.Container Properties

"active" | Read/Write | If `True`, the menu item is checked.
"inconsistent" | Read/Write | If `True`, display an "inconsistent" state.
"draw-as-radio" | Read/Write | If `True`, display like a radio menu item. GTK+ 2.4 and above.

## gtk.CheckMenuItem Style Properties

gtk.Widget Style Properties

gtk.MenuItem Style Properties

"indicator-size" | Read | The size of the check or radio indicator.

## Attributes

"active" | Read | If `True`, the menu item is checked.

## gtk.CheckMenuItem Signal Prototypes

gobject.GObject Signal Prototypes

gtk.Object Signal Prototypes

gtk.Widget Signal Prototypes

gtk.Container Signal Prototypes

gtk.Item Signal Prototypes

gtk.MenuItem Signal Prototypes

"toggled" | `def callback(`checkmenuitem`, `user_param1`, `...`)`

## Description

A `gtk.CheckMenuItem` is a menu item that maintains the state of a boolean value in addition to a `gtk.MenuItem`'s usual role in activating application code. A check box indicating the state of the boolean value is displayed at the left side of the `gtk.MenuItem`. Activating the `gtk.MenuItem` toggles the value.

## Constructor

        gtk.CheckMenuItem(label=None, use_underline=True)

`label` : | a string to be used as the label text or `None`
`use_underline` : | if `True`, an underscore in the label text indicates the next character should be underlined and used for the mnemonic accelerator key if it is the first character so marked. Available in PyGTK 2.4 and above.
Returns : | a new checkmenuitem

Creates a new checkmenuitem with a text label specified by `label`. If `label` is `None` or not specified then no label is created. If `label` contains underscore characters then the character following the underscore will be underlined and the character following the first underscore will be used as the mnemonic keyboard accelerator.

In PyGTK 2.4 and above the `use_underline` parameter is available and defaults to `True`. If `use_underline` is set to `False` the label text will not be parsed for mnemonic characters.

## Methods

### gtk.CheckMenuItem.set_active

        def set_active(is_active)

`is_active` : | If True set the check box active

The `set_active`() method sets the active state of the menu item's check box according to the value of `is_active`.

### gtk.CheckMenuItem.get_active

        def get_active()

Returns : | `True` if the menu item is checked (check box is active).

The `get_active`() method returns whether the check menu item is active. See `gtk.CheckMenuItem.set_active()`.

### gtk.CheckMenuItem.toggled

        def toggled()

The toggle() method emits the "toggled" signal on the checkmenuitem

### gtk.CheckMenuItem.set_inconsistent

        def set_inconsistent(setting)

`setting` : | If `True` display an "inconsistent" third state check

The `set_inconsistent`() method sets the check box to display an "inconsistent" state if the value of `setting` is `True`. The "inconsistent" state display is removed if `setting` is `False`.

An application may want to display an "inconsistent" state if the user has selected a range of elements (such as some text or spreadsheet cells) that are affected by a boolean setting, and the current values for those elements cannot be represented by a single checkmenuitem state. The `set_inconsistent`() method only affects visual appearance, it doesn't affect the semantics of the widget.

### gtk.CheckMenuItem.get_inconsistent

        def get_inconsistent()

Returns : | `True` if the checkmenuitem displays the "inconsistent" state

The `get_inconsistent`() method retrieves the value set by the `set_inconsistent()` method.

### gtk.CheckMenuItem.set_draw_as_radio

        def set_draw_as_radio(draw_as_radio)

`draw_as_radio` : | If `True` display the check menu item like a radio menu item

### Note

This method is available in PyGTK 2.4 and above.

The `set_draw_as_radio`() method displays the check menu item like a radio menu item if the value of `draw_as_radio` is `True`. If `draw_as_radio` is `False` the check menu item is displayed as normal.

### gtk.CheckMenuItem.get_draw_as_radio

        def get_draw_as_radio()

Returns : | `True` if the checkmenuitem should be displayed like a radio menu item.

### Note

This method is available in PyGTK 2.4 and above.

The `get_draw_as_radio`() method retrieves the value set by the `set_draw_as_radio()` method.

## Signals

### The "toggled" gtk.CheckMenuItem Signal

        def callback(checkmenuitem, user_param1, ...)

`checkmenuitem` : | the checkmenuitem that received the signal
`user_param1` : | the first user parameter (if any) specified with the `connect`() method
`...` : | additional user parameters (if any)

The "toggled" signal is emitted when the checkmenuitem changes state.

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