GtkPlug: GTK+ 3 Reference Manual

## GtkPlug GtkPlug — Toplevel for embedding into other processes |

## Functions

void | gtk_plug_construct ()
void | gtk_plug_construct_for_display ()
GtkWidget * | gtk_plug_new ()
GtkWidget * | gtk_plug_new_for_display ()
Window | gtk_plug_get_id ()
gboolean | gtk_plug_get_embedded ()
GdkWindow * | gtk_plug_get_socket_window ()

## Properties

gboolean | embedded | Read
GdkWindow * | socket-window | Read

## Signals

void | embedded | Run Last

## Types and Values

struct | GtkPlug

## Object Hierarchy

        GObject
        ╰── GInitiallyUnowned
            ╰── GtkWidget
                ╰── GtkContainer
                    ╰── GtkBin
                        ╰── GtkWindow
                            ╰── GtkPlug

## Implemented Interfaces

GtkPlug implements AtkImplementorIface and GtkBuildable.

## Includes

    #include <gtk/gtkx.h>

## 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.

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.

## Functions

### 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.

#### Parameters

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.

#### Parameters

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()`.

#### Parameters

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.

#### Parameters

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()`.

#### Parameters

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.

#### Parameters

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.

#### Parameters

plug | a GtkPlug |

#### Returns

the window of the socket, or `NULL`.

[nullable][transfer none]

Since: 2.14

## Types and Values

### struct GtkPlug

    struct GtkPlug;

## Property Details

### The `“embedded”` property

      “embedded”                 gboolean

`TRUE` if the plug is embedded in a socket.

Flags: Read

Default value: FALSE

Since: 2.12

### The `“socket-window”` property

      “socket-window”            GdkWindow *

The window of the socket the plug is embedded in.

Flags: Read

Since: 2.14

## Signal Details

### The `“embedded”` signal

    void
    user_function (GtkPlug *plug,
                   gpointer user_data)

Gets emitted when the plug becomes embedded in a socket.

#### Parameters

plug | the object on which the signal was emitted |
user_data | user data set when the signal handler was connected. |

Flags: Run Last

## See Also

GtkSocket