## GtkPlug

GtkPlug — Toplevel for embedding into other processes

## Synopsis

    #include <gtk/gtkx.h>

    struct              GtkPlug;
    void                gtk_plug_construct                  (GtkPlug *plug,
                                                             Window socket_id);
    void                gtk_plug_construct_for_display      (GtkPlug *plug,
                                                             GdkDisplay *display,
                                                             Window socket_id);
    GtkWidget *         gtk_plug_new                        (Window socket_id);
    GtkWidget *         gtk_plug_new_for_display            (GdkDisplay *display,
                                                             Window socket_id);
    Window              gtk_plug_get_id                     (GtkPlug *plug);
    gboolean            gtk_plug_get_embedded               (GtkPlug *plug);
    GdkWindow *         gtk_plug_get_socket_window          (GtkPlug *plug);

## Description

Together with GtkSocket, GtkPlug provides the ability to embed widgets from one process into another process in a fashion that is transparent to the user. One process creates a GtkSocket widget and passes the ID of that widget's window to the other process, which then creates a GtkPlug with that window ID. Any widgets contained in the GtkPlug then will appear inside the first application's window.

The communication between a GtkSocket and a GtkPlug follows the XEmbed protocol. This protocol has also been implemented in other toolkits, e.g. Qt, allowing the same level of integration when embedding a Qt widget in GTK+ or vice versa.

### Note

The GtkPlug and GtkSocket widgets are only available when GTK+ is compiled for the X11 platform and `GDK_WINDOWING_X11` is defined. They can only be used on a GdkX11Display. To use GtkPlug and GtkSocket, you need to include the `gtk/gtkx.h` header.

## Details

### struct GtkPlug

    struct GtkPlug {
      GtkWindow window;

      GtkPlugPrivate *priv;
    };

### gtk_plug_construct ()

    void                gtk_plug_construct                  (GtkPlug *plug,
                                                             Window socket_id);

Finish the initialization of `plug` for a given GtkSocket identified by `socket_id`. This function will generally only be used by classes deriving from GtkPlug.

`plug` : | a GtkPlug.
`socket_id` : | the XID of the socket's window.

### gtk_plug_construct_for_display ()

    void                gtk_plug_construct_for_display      (GtkPlug *plug,
                                                             GdkDisplay *display,
                                                             Window socket_id);

Finish the initialization of `plug` for a given GtkSocket identified by `socket_id` which is currently displayed on `display`. This function will generally only be used by classes deriving from GtkPlug.

`plug` : | a GtkPlug.
`display` : | the GdkDisplay associated with `socket_id`'s GtkSocket.
`socket_id` : | the XID of the socket's window.

Since 2.2

### gtk_plug_new ()

    GtkWidget *         gtk_plug_new                        (Window socket_id);

Creates a new plug widget inside the GtkSocket identified by `socket_id`. If `socket_id` is 0, the plug is left "unplugged" and can later be plugged into a GtkSocket by `gtk_socket_add_id()`.

`socket_id` : | the window ID of the socket, or 0.
Returns : | the new GtkPlug widget.

### gtk_plug_new_for_display ()

    GtkWidget *         gtk_plug_new_for_display            (GdkDisplay *display,
                                                             Window socket_id);

Create a new plug widget inside the GtkSocket identified by socket_id.

`display` : | the GdkDisplay on which `socket_id` is displayed
`socket_id` : | the XID of the socket's window.
Returns : | the new GtkPlug widget.

Since 2.2

### gtk_plug_get_id ()

    Window              gtk_plug_get_id                     (GtkPlug *plug);

Gets the window ID of a GtkPlug widget, which can then be used to embed this window inside another window, for instance with `gtk_socket_add_id()`.

`plug` : | a GtkPlug.
Returns : | the window ID for the plug

### gtk_plug_get_embedded ()

    gboolean            gtk_plug_get_embedded               (GtkPlug *plug);

Determines whether the plug is embedded in a socket.

`plug` : | a GtkPlug
Returns : | `TRUE` if the plug is embedded in a socket

Since 2.14

### gtk_plug_get_socket_window ()

    GdkWindow *         gtk_plug_get_socket_window          (GtkPlug *plug);

Retrieves the socket the plug is embedded in.

`plug` : | a GtkPlug
Returns : | the window of the socket, or `NULL`. [transfer none]

Since 2.14

## See Also

GtkSocket