Xfconf-GObject Binding: xfconf Reference Manual

## Xfconf-GObject Binding Xfconf-GObject Binding — Functions to bind Xfconf properties to GObject properties |

## Functions

gulong | xfconf_g_property_bind ()
gulong | xfconf_g_property_bind_gdkcolor ()
gulong | xfconf_g_property_bind_gdkrgba ()
void | xfconf_g_property_unbind ()
void | xfconf_g_property_unbind_by_property ()
void | xfconf_g_property_unbind_all ()

## Description

Often it may be useful to bind an Xfconf property to a GObject property. Settings dialogs often display the current value of an Xfconf property, and a user may edit the value to change the value in the Xfconf store. If the Xfconf property changes outside the settings dialog, the user will usually want to see the settings dialog automatically update to reflect the new value.

With a single line of code, Xfconf's binding functionality can automate all this.

## Functions

### xfconf_g_property_bind ()

    gulong
    xfconf_g_property_bind (XfconfChannel *channel,
                            const gchar *xfconf_property,
                            GType xfconf_property_type,
                            gpointer object,
                            const gchar *object_property);

Binds an Xfconf property to a GObject property. If the property is changed via either the GObject or Xfconf, the corresponding property will also be updated. The binding is initialized from the Xfconf property, i.e. the initial value of the GObject property is overwritten.

Note that `xfconf_property_type` is required since `xfconf_property` may or may not already exist in the Xfconf store. The type of `object_property` will be determined automatically. If the two types do not match, a conversion will be attempted.

#### Parameters

channel | An XfconfChannel. |
xfconf_property | A property on `channel` . |
xfconf_property_type | The type of `xfconf_property` . |
object | A GObject. |
object_property | A valid property on `object` . |

#### Returns

an ID number that can be used to later remove the binding.

### xfconf_g_property_bind_gdkcolor ()

    gulong
    xfconf_g_property_bind_gdkcolor (XfconfChannel *channel,
                                     const gchar *xfconf_property,
                                     gpointer object,
                                     const gchar *object_property);

Binds an Xfconf property to a GObject property of type GDK_TYPE_COLOR (aka a GdkColor struct). If the property is changed via either the GObject or Xfconf, the corresponding property will also be updated. The binding is initialized from the Xfconf property, i.e. the initial value of the GObject property is overwritten.

This is a special-case binding; the GdkColor struct is not ideal as-is for binding to a property, so it is stored in the Xfconf store as four 16-bit unsigned ints (red, green, blue, alpha). Since GdkColor (currently) only supports RGB and not RGBA, the last value will always be set to 0xFFFF.

#### Parameters

channel | An XfconfChannel. |
xfconf_property | A property on `channel` . |
object | A GObject. |
object_property | A valid property on `object` . |

#### Returns

an ID number that can be used to later remove the binding.

### xfconf_g_property_bind_gdkrgba ()

    gulong
    xfconf_g_property_bind_gdkrgba (XfconfChannel *channel,
                                    const gchar *xfconf_property,
                                    gpointer object,
                                    const gchar *object_property);

Binds an Xfconf property to a GObject property of type GDK_TYPE_RGBA (aka a GdkRGBA struct). If the property is changed via either the GObject or Xfconf, the corresponding property will also be updated. The binding is initialized from the Xfconf property, i.e. the initial value of the GObject property is overwritten.

This is a special-case binding; the GdkRGBA struct is not ideal as-is for binding to a property, so it is stored in the Xfconf store as four 16-bit unsigned ints (red, green, blue, alpha).

#### Parameters

channel | An XfconfChannel. |
xfconf_property | A property on `channel` . |
object | A GObject. |
object_property | A valid property on `object` . |

#### Returns

an ID number that can be used to later remove the binding.

Since: 4.12.1

### xfconf_g_property_unbind ()

    void
    xfconf_g_property_unbind (gulong id);

Removes an Xfconf/GObject property binding based on the binding ID number. See `xfconf_g_property_bind()`.

#### Parameters

id | A binding ID number. |

### xfconf_g_property_unbind_by_property ()

    void
    xfconf_g_property_unbind_by_property (XfconfChannel *channel,
                                          const gchar *xfconf_property,
                                          gpointer object,
                                          const gchar *object_property);

Causes an Xfconf channel previously bound to a GObject property (see `xfconf_g_property_bind()`) to no longer be bound.

#### Parameters

channel | An XfconfChannel. |
xfconf_property | A bound property on `channel` . |
object | A GObject. |
object_property | A bound property on `object` . |

### xfconf_g_property_unbind_all ()

    void
    xfconf_g_property_unbind_all (gpointer channel_or_object);

Unbinds all Xfconf channel bindings (see `xfconf_g_property_bind()`) to `object` . If `object` is an XfconfChannel, it will unbind all xfconf properties on that channel. If `object` is a regular GObject with properties bound to a channel, all those bindings will be removed.

#### Parameters

channel_or_object | A GObject or XfconfChannel. |