## UDisksEncrypted UDisksEncrypted — Generated C code for the org.freedesktop.UDisks2.Encrypted D-Bus interface |

## Synopsis

                        UDisksEncrypted;
    struct              UDisksEncryptedIface;
    GDBusInterfaceInfo * udisks_encrypted_interface_info    (void);
    guint               udisks_encrypted_override_properties
                                                            (GObjectClass *klass,
                                                             guint property_id_begin);
    void                udisks_encrypted_call_unlock        (UDisksEncrypted *proxy,
                                                             const gchar *arg_passphrase,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);
    gboolean            udisks_encrypted_call_unlock_finish (UDisksEncrypted *proxy,
                                                             gchar **out_cleartext_device,
                                                             GAsyncResult *res,
                                                             GError **error);
    gboolean            udisks_encrypted_call_unlock_sync   (UDisksEncrypted *proxy,
                                                             const gchar *arg_passphrase,
                                                             GVariant *arg_options,
                                                             gchar **out_cleartext_device,
                                                             GCancellable *cancellable,
                                                             GError **error);
    void                udisks_encrypted_complete_unlock    (UDisksEncrypted *object,
                                                             GDBusMethodInvocation *invocation,
                                                             const gchar *cleartext_device);
    void                udisks_encrypted_call_lock          (UDisksEncrypted *proxy,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);
    gboolean            udisks_encrypted_call_lock_finish   (UDisksEncrypted *proxy,
                                                             GAsyncResult *res,
                                                             GError **error);
    gboolean            udisks_encrypted_call_lock_sync     (UDisksEncrypted *proxy,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GError **error);
    void                udisks_encrypted_complete_lock      (UDisksEncrypted *object,
                                                             GDBusMethodInvocation *invocation);
    void                udisks_encrypted_call_change_passphrase
                                                            (UDisksEncrypted *proxy,
                                                             const gchar *arg_passphrase,
                                                             const gchar *arg_new_passphrase,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);
    gboolean            udisks_encrypted_call_change_passphrase_finish
                                                            (UDisksEncrypted *proxy,
                                                             GAsyncResult *res,
                                                             GError **error);
    gboolean            udisks_encrypted_call_change_passphrase_sync
                                                            (UDisksEncrypted *proxy,
                                                             const gchar *arg_passphrase,
                                                             const gchar *arg_new_passphrase,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GError **error);
    void                udisks_encrypted_complete_change_passphrase
                                                            (UDisksEncrypted *object,
                                                             GDBusMethodInvocation *invocation);
    struct              UDisksEncryptedProxy;
    struct              UDisksEncryptedProxyClass;
    void                udisks_encrypted_proxy_new          (GDBusConnection *connection,
                                                             GDBusProxyFlags flags,
                                                             const gchar *name,
                                                             const gchar *object_path,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);
    UDisksEncrypted *   udisks_encrypted_proxy_new_finish   (GAsyncResult *res,
                                                             GError **error);
    UDisksEncrypted *   udisks_encrypted_proxy_new_sync     (GDBusConnection *connection,
                                                             GDBusProxyFlags flags,
                                                             const gchar *name,
                                                             const gchar *object_path,
                                                             GCancellable *cancellable,
                                                             GError **error);
    void                udisks_encrypted_proxy_new_for_bus  (GBusType bus_type,
                                                             GDBusProxyFlags flags,
                                                             const gchar *name,
                                                             const gchar *object_path,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);
    UDisksEncrypted *   udisks_encrypted_proxy_new_for_bus_finish
                                                            (GAsyncResult *res,
                                                             GError **error);
    UDisksEncrypted *   udisks_encrypted_proxy_new_for_bus_sync
                                                            (GBusType bus_type,
                                                             GDBusProxyFlags flags,
                                                             const gchar *name,
                                                             const gchar *object_path,
                                                             GCancellable *cancellable,
                                                             GError **error);
    struct              UDisksEncryptedSkeleton;
    struct              UDisksEncryptedSkeletonClass;
    UDisksEncrypted *   udisks_encrypted_skeleton_new       (void);

## Object Hierarchy

      GInterface
       +----UDisksEncrypted

      GObject
       +----GDBusProxy
             +----UDisksEncryptedProxy

      GObject
       +----GDBusInterfaceSkeleton
             +----UDisksEncryptedSkeleton
                   +----UDisksLinuxEncrypted

## Prerequisites

UDisksEncrypted requires GObject.

## Implemented Interfaces

UDisksEncryptedProxy implements GDBusInterface, GInitable, GAsyncInitable and UDisksEncrypted.

UDisksEncryptedSkeleton implements GDBusInterface and UDisksEncrypted.

## Known Implementations

UDisksEncrypted is implemented by UDisksEncryptedProxy, UDisksEncryptedSkeleton and UDisksLinuxEncrypted.

## Signals

      "handle-change-passphrase"                       : Run Last
      "handle-lock"                                    : Run Last
      "handle-unlock"                                  : Run Last

## Description

This section contains code for working with the org.freedesktop.UDisks2.Encrypted D-Bus interface in C.

## Details

### UDisksEncrypted

    typedef struct _UDisksEncrypted UDisksEncrypted;

Abstract interface type for the D-Bus interface org.freedesktop.UDisks2.Encrypted.

### struct UDisksEncryptedIface

    struct UDisksEncryptedIface {
      GTypeInterface parent_iface;

      gboolean (*handle_change_passphrase) (
        UDisksEncrypted *object,
        GDBusMethodInvocation *invocation,
        const gchar *arg_passphrase,
        const gchar *arg_new_passphrase,
        GVariant *arg_options);

      gboolean (*handle_lock) (
        UDisksEncrypted *object,
        GDBusMethodInvocation *invocation,
        GVariant *arg_options);

      gboolean (*handle_unlock) (
        UDisksEncrypted *object,
        GDBusMethodInvocation *invocation,
        const gchar *arg_passphrase,
        GVariant *arg_options);
    };

Virtual table for the D-Bus interface org.freedesktop.UDisks2.Encrypted.

GTypeInterface `parent_iface`; | The parent interface.
`handle_change_passphrase` () | Handler for the "handle-change-passphrase" signal.
`handle_lock` () | Handler for the "handle-lock" signal.
`handle_unlock` () | Handler for the "handle-unlock" signal.

### udisks_encrypted_interface_info ()

    GDBusInterfaceInfo * udisks_encrypted_interface_info    (void);

Gets a machine-readable description of the org.freedesktop.UDisks2.Encrypted D-Bus interface.

Returns : | A GDBusInterfaceInfo. Do not free. [transfer none]

### udisks_encrypted_override_properties ()

    guint               udisks_encrypted_override_properties
                                                            (GObjectClass *klass,
                                                             guint property_id_begin);

Overrides all GObject properties in the UDisksEncrypted interface for a concrete class. The properties are overridden in the order they are defined.

`klass` : | The class structure for a GObject-derived class.
`property_id_begin` : | The property id to assign to the first overridden property.
Returns : | The last property id.

### udisks_encrypted_call_unlock ()

    void                udisks_encrypted_call_unlock        (UDisksEncrypted *proxy,
                                                             const gchar *arg_passphrase,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);

Asynchronously invokes the `Unlock()` D-Bus method on `proxy`. When the operation is finished, `callback` will be invoked in the thread-default main loop of the thread you are calling this method from. You can then call `udisks_encrypted_call_unlock_finish()` to get the result of the operation.

See `udisks_encrypted_call_unlock_sync()` for the synchronous, blocking version of this method.

`proxy` : | A UDisksEncryptedProxy.
`arg_passphrase` : | Argument to pass with the method invocation.
`arg_options` : | Argument to pass with the method invocation.
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`callback` : | A GAsyncReadyCallback to call when the request is satisfied or `NULL`.
`user_data` : | User data to pass to `callback`.

### udisks_encrypted_call_unlock_finish ()

    gboolean            udisks_encrypted_call_unlock_finish (UDisksEncrypted *proxy,
                                                             gchar **out_cleartext_device,
                                                             GAsyncResult *res,
                                                             GError **error);

Finishes an operation started with `udisks_encrypted_call_unlock()`.

`proxy` : | A UDisksEncryptedProxy.
`out_cleartext_device` : | Return location for return parameter or `NULL` to ignore. [out]
`res` : | The GAsyncResult obtained from the GAsyncReadyCallback passed to `udisks_encrypted_call_unlock()`.
`error` : | Return location for error or `NULL`.
Returns : | `TRUE` if the call succeded, `FALSE` if `error` is set. [skip]

### udisks_encrypted_call_unlock_sync ()

    gboolean            udisks_encrypted_call_unlock_sync   (UDisksEncrypted *proxy,
                                                             const gchar *arg_passphrase,
                                                             GVariant *arg_options,
                                                             gchar **out_cleartext_device,
                                                             GCancellable *cancellable,
                                                             GError **error);

Synchronously invokes the `Unlock()` D-Bus method on `proxy`. The calling thread is blocked until a reply is received.

See `udisks_encrypted_call_unlock()` for the asynchronous version of this method.

`proxy` : | A UDisksEncryptedProxy.
`arg_passphrase` : | Argument to pass with the method invocation.
`arg_options` : | Argument to pass with the method invocation.
`out_cleartext_device` : | Return location for return parameter or `NULL` to ignore. [out]
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`error` : | Return location for error or `NULL`.
Returns : | `TRUE` if the call succeded, `FALSE` if `error` is set. [skip]

### udisks_encrypted_complete_unlock ()

    void                udisks_encrypted_complete_unlock    (UDisksEncrypted *object,
                                                             GDBusMethodInvocation *invocation,
                                                             const gchar *cleartext_device);

Helper function used in service implementations to finish handling invocations of the `Unlock()` D-Bus method. If you instead want to finish handling an invocation by returning an error, use `g_dbus_method_invocation_return_error()` or similar.

This method will free `invocation`, you cannot use it afterwards.

`object` : | A UDisksEncrypted.
`invocation` : | A GDBusMethodInvocation. [transfer full]
`cleartext_device` : | Parameter to return.

### udisks_encrypted_call_lock ()

    void                udisks_encrypted_call_lock          (UDisksEncrypted *proxy,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);

Asynchronously invokes the `Lock()` D-Bus method on `proxy`. When the operation is finished, `callback` will be invoked in the thread-default main loop of the thread you are calling this method from. You can then call `udisks_encrypted_call_lock_finish()` to get the result of the operation.

See `udisks_encrypted_call_lock_sync()` for the synchronous, blocking version of this method.

`proxy` : | A UDisksEncryptedProxy.
`arg_options` : | Argument to pass with the method invocation.
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`callback` : | A GAsyncReadyCallback to call when the request is satisfied or `NULL`.
`user_data` : | User data to pass to `callback`.

### udisks_encrypted_call_lock_finish ()

    gboolean            udisks_encrypted_call_lock_finish   (UDisksEncrypted *proxy,
                                                             GAsyncResult *res,
                                                             GError **error);

Finishes an operation started with `udisks_encrypted_call_lock()`.

`proxy` : | A UDisksEncryptedProxy.
`res` : | The GAsyncResult obtained from the GAsyncReadyCallback passed to `udisks_encrypted_call_lock()`.
`error` : | Return location for error or `NULL`.
Returns : | `TRUE` if the call succeded, `FALSE` if `error` is set. [skip]

### udisks_encrypted_call_lock_sync ()

    gboolean            udisks_encrypted_call_lock_sync     (UDisksEncrypted *proxy,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GError **error);

Synchronously invokes the `Lock()` D-Bus method on `proxy`. The calling thread is blocked until a reply is received.

See `udisks_encrypted_call_lock()` for the asynchronous version of this method.

`proxy` : | A UDisksEncryptedProxy.
`arg_options` : | Argument to pass with the method invocation.
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`error` : | Return location for error or `NULL`.
Returns : | `TRUE` if the call succeded, `FALSE` if `error` is set. [skip]

### udisks_encrypted_complete_lock ()

    void                udisks_encrypted_complete_lock      (UDisksEncrypted *object,
                                                             GDBusMethodInvocation *invocation);

Helper function used in service implementations to finish handling invocations of the `Lock()` D-Bus method. If you instead want to finish handling an invocation by returning an error, use `g_dbus_method_invocation_return_error()` or similar.

This method will free `invocation`, you cannot use it afterwards.

`object` : | A UDisksEncrypted.
`invocation` : | A GDBusMethodInvocation. [transfer full]

### udisks_encrypted_call_change_passphrase ()

    void                udisks_encrypted_call_change_passphrase
                                                            (UDisksEncrypted *proxy,
                                                             const gchar *arg_passphrase,
                                                             const gchar *arg_new_passphrase,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);

Asynchronously invokes the `ChangePassphrase()` D-Bus method on `proxy`. When the operation is finished, `callback` will be invoked in the thread-default main loop of the thread you are calling this method from. You can then call `udisks_encrypted_call_change_passphrase_finish()` to get the result of the operation.

See `udisks_encrypted_call_change_passphrase_sync()` for the synchronous, blocking version of this method.

`proxy` : | A UDisksEncryptedProxy.
`arg_passphrase` : | Argument to pass with the method invocation.
`arg_new_passphrase` : | Argument to pass with the method invocation.
`arg_options` : | Argument to pass with the method invocation.
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`callback` : | A GAsyncReadyCallback to call when the request is satisfied or `NULL`.
`user_data` : | User data to pass to `callback`.

### udisks_encrypted_call_change_passphrase_finish ()

    gboolean            udisks_encrypted_call_change_passphrase_finish
                                                            (UDisksEncrypted *proxy,
                                                             GAsyncResult *res,
                                                             GError **error);

Finishes an operation started with `udisks_encrypted_call_change_passphrase()`.

`proxy` : | A UDisksEncryptedProxy.
`res` : | The GAsyncResult obtained from the GAsyncReadyCallback passed to `udisks_encrypted_call_change_passphrase()`.
`error` : | Return location for error or `NULL`.
Returns : | `TRUE` if the call succeded, `FALSE` if `error` is set. [skip]

### udisks_encrypted_call_change_passphrase_sync ()

    gboolean            udisks_encrypted_call_change_passphrase_sync
                                                            (UDisksEncrypted *proxy,
                                                             const gchar *arg_passphrase,
                                                             const gchar *arg_new_passphrase,
                                                             GVariant *arg_options,
                                                             GCancellable *cancellable,
                                                             GError **error);

Synchronously invokes the `ChangePassphrase()` D-Bus method on `proxy`. The calling thread is blocked until a reply is received.

See `udisks_encrypted_call_change_passphrase()` for the asynchronous version of this method.

`proxy` : | A UDisksEncryptedProxy.
`arg_passphrase` : | Argument to pass with the method invocation.
`arg_new_passphrase` : | Argument to pass with the method invocation.
`arg_options` : | Argument to pass with the method invocation.
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`error` : | Return location for error or `NULL`.
Returns : | `TRUE` if the call succeded, `FALSE` if `error` is set. [skip]

### udisks_encrypted_complete_change_passphrase ()

    void                udisks_encrypted_complete_change_passphrase
                                                            (UDisksEncrypted *object,
                                                             GDBusMethodInvocation *invocation);

Helper function used in service implementations to finish handling invocations of the `ChangePassphrase()` D-Bus method. If you instead want to finish handling an invocation by returning an error, use `g_dbus_method_invocation_return_error()` or similar.

This method will free `invocation`, you cannot use it afterwards.

`object` : | A UDisksEncrypted.
`invocation` : | A GDBusMethodInvocation. [transfer full]

### struct UDisksEncryptedProxy

    struct UDisksEncryptedProxy;

The UDisksEncryptedProxy structure contains only private data and should only be accessed using the provided API.

### struct UDisksEncryptedProxyClass

    struct UDisksEncryptedProxyClass {
      GDBusProxyClass parent_class;
    };

Class structure for UDisksEncryptedProxy.

GDBusProxyClass `parent_class`; | The parent class.

### udisks_encrypted_proxy_new ()

    void                udisks_encrypted_proxy_new          (GDBusConnection *connection,
                                                             GDBusProxyFlags flags,
                                                             const gchar *name,
                                                             const gchar *object_path,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);

Asynchronously creates a proxy for the D-Bus interface org.freedesktop.UDisks2.Encrypted. See `g_dbus_proxy_new()` for more details.

When the operation is finished, `callback` will be invoked in the thread-default main loop of the thread you are calling this method from. You can then call `udisks_encrypted_proxy_new_finish()` to get the result of the operation.

See `udisks_encrypted_proxy_new_sync()` for the synchronous, blocking version of this constructor.

`connection` : | A GDBusConnection.
`flags` : | Flags from the GDBusProxyFlags enumeration.
`name` : | A bus name (well-known or unique) or `NULL` if `connection` is not a message bus connection. [allow-none]
`object_path` : | An object path.
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`callback` : | A GAsyncReadyCallback to call when the request is satisfied.
`user_data` : | User data to pass to `callback`.

### udisks_encrypted_proxy_new_finish ()

    UDisksEncrypted *   udisks_encrypted_proxy_new_finish   (GAsyncResult *res,
                                                             GError **error);

Finishes an operation started with `udisks_encrypted_proxy_new()`.

`res` : | The GAsyncResult obtained from the GAsyncReadyCallback passed to `udisks_encrypted_proxy_new()`.
`error` : | Return location for error or `NULL`
Returns : | The constructed proxy object or `NULL` if `error` is set. [transfer full][type UDisksEncryptedProxy]

### udisks_encrypted_proxy_new_sync ()

    UDisksEncrypted *   udisks_encrypted_proxy_new_sync     (GDBusConnection *connection,
                                                             GDBusProxyFlags flags,
                                                             const gchar *name,
                                                             const gchar *object_path,
                                                             GCancellable *cancellable,
                                                             GError **error);

Synchronously creates a proxy for the D-Bus interface org.freedesktop.UDisks2.Encrypted. See `g_dbus_proxy_new_sync()` for more details.

The calling thread is blocked until a reply is received.

See `udisks_encrypted_proxy_new()` for the asynchronous version of this constructor.

`connection` : | A GDBusConnection.
`flags` : | Flags from the GDBusProxyFlags enumeration.
`name` : | A bus name (well-known or unique) or `NULL` if `connection` is not a message bus connection. [allow-none]
`object_path` : | An object path.
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`error` : | Return location for error or `NULL`
Returns : | The constructed proxy object or `NULL` if `error` is set. [transfer full][type UDisksEncryptedProxy]

### udisks_encrypted_proxy_new_for_bus ()

    void                udisks_encrypted_proxy_new_for_bus  (GBusType bus_type,
                                                             GDBusProxyFlags flags,
                                                             const gchar *name,
                                                             const gchar *object_path,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);

Like `udisks_encrypted_proxy_new()` but takes a GBusType instead of a GDBusConnection.

When the operation is finished, `callback` will be invoked in the thread-default main loop of the thread you are calling this method from. You can then call `udisks_encrypted_proxy_new_for_bus_finish()` to get the result of the operation.

See `udisks_encrypted_proxy_new_for_bus_sync()` for the synchronous, blocking version of this constructor.

`bus_type` : | A GBusType.
`flags` : | Flags from the GDBusProxyFlags enumeration.
`name` : | A bus name (well-known or unique).
`object_path` : | An object path.
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`callback` : | A GAsyncReadyCallback to call when the request is satisfied.
`user_data` : | User data to pass to `callback`.

### udisks_encrypted_proxy_new_for_bus_finish ()

    UDisksEncrypted *   udisks_encrypted_proxy_new_for_bus_finish
                                                            (GAsyncResult *res,
                                                             GError **error);

Finishes an operation started with `udisks_encrypted_proxy_new_for_bus()`.

`res` : | The GAsyncResult obtained from the GAsyncReadyCallback passed to `udisks_encrypted_proxy_new_for_bus()`.
`error` : | Return location for error or `NULL`
Returns : | The constructed proxy object or `NULL` if `error` is set. [transfer full][type UDisksEncryptedProxy]

### udisks_encrypted_proxy_new_for_bus_sync ()

    UDisksEncrypted *   udisks_encrypted_proxy_new_for_bus_sync
                                                            (GBusType bus_type,
                                                             GDBusProxyFlags flags,
                                                             const gchar *name,
                                                             const gchar *object_path,
                                                             GCancellable *cancellable,
                                                             GError **error);

Like `udisks_encrypted_proxy_new_sync()` but takes a GBusType instead of a GDBusConnection.

The calling thread is blocked until a reply is received.

See `udisks_encrypted_proxy_new_for_bus()` for the asynchronous version of this constructor.

`bus_type` : | A GBusType.
`flags` : | Flags from the GDBusProxyFlags enumeration.
`name` : | A bus name (well-known or unique).
`object_path` : | An object path.
`cancellable` : | A GCancellable or `NULL`. [allow-none]
`error` : | Return location for error or `NULL`
Returns : | The constructed proxy object or `NULL` if `error` is set. [transfer full][type UDisksEncryptedProxy]

### struct UDisksEncryptedSkeleton

    struct UDisksEncryptedSkeleton;

The UDisksEncryptedSkeleton structure contains only private data and should only be accessed using the provided API.

### struct UDisksEncryptedSkeletonClass

    struct UDisksEncryptedSkeletonClass {
      GDBusInterfaceSkeletonClass parent_class;
    };

Class structure for UDisksEncryptedSkeleton.

GDBusInterfaceSkeletonClass `parent_class`; | The parent class.

### udisks_encrypted_skeleton_new ()

    UDisksEncrypted *   udisks_encrypted_skeleton_new       (void);

Creates a skeleton object for the D-Bus interface org.freedesktop.UDisks2.Encrypted.

Returns : | The skeleton object. [transfer full][type UDisksEncryptedSkeleton]

## Signal Details

### The `"handle-change-passphrase"` signal

    gboolean            user_function                      (UDisksEncrypted       *object,
                                                            GDBusMethodInvocation *invocation,
                                                            gchar                 *arg_passphrase,
                                                            gchar                 *arg_new_passphrase,
                                                            GVariant              *arg_options,
                                                            gpointer               user_data)               : Run Last

Signal emitted when a remote caller is invoking the `ChangePassphrase()` D-Bus method.

If a signal handler returns `TRUE`, it means the signal handler will handle the invocation (e.g. take a reference to `invocation` and eventually call `udisks_encrypted_complete_change_passphrase()` or e.g. `g_dbus_method_invocation_return_error()` on it) and no order signal handlers will run. If no signal handler handles the invocation, the `G_DBUS_ERROR_UNKNOWN_METHOD` error is returned.

`object` : | A UDisksEncrypted.
`invocation` : | A GDBusMethodInvocation.
`arg_passphrase` : | Argument passed by remote caller.
`arg_new_passphrase` : | Argument passed by remote caller.
`arg_options` : | Argument passed by remote caller.
`user_data` : | user data set when the signal handler was connected.
Returns : | `TRUE` if the invocation was handled, `FALSE` to let other signal handlers run.

### The `"handle-lock"` signal

    gboolean            user_function                      (UDisksEncrypted       *object,
                                                            GDBusMethodInvocation *invocation,
                                                            GVariant              *arg_options,
                                                            gpointer               user_data)        : Run Last

Signal emitted when a remote caller is invoking the `Lock()` D-Bus method.

If a signal handler returns `TRUE`, it means the signal handler will handle the invocation (e.g. take a reference to `invocation` and eventually call `udisks_encrypted_complete_lock()` or e.g. `g_dbus_method_invocation_return_error()` on it) and no order signal handlers will run. If no signal handler handles the invocation, the `G_DBUS_ERROR_UNKNOWN_METHOD` error is returned.

`object` : | A UDisksEncrypted.
`invocation` : | A GDBusMethodInvocation.
`arg_options` : | Argument passed by remote caller.
`user_data` : | user data set when the signal handler was connected.
Returns : | `TRUE` if the invocation was handled, `FALSE` to let other signal handlers run.

### The `"handle-unlock"` signal

    gboolean            user_function                      (UDisksEncrypted       *object,
                                                            GDBusMethodInvocation *invocation,
                                                            gchar                 *arg_passphrase,
                                                            GVariant              *arg_options,
                                                            gpointer               user_data)           : Run Last

Signal emitted when a remote caller is invoking the `Unlock()` D-Bus method.

If a signal handler returns `TRUE`, it means the signal handler will handle the invocation (e.g. take a reference to `invocation` and eventually call `udisks_encrypted_complete_unlock()` or e.g. `g_dbus_method_invocation_return_error()` on it) and no order signal handlers will run. If no signal handler handles the invocation, the `G_DBUS_ERROR_UNKNOWN_METHOD` error is returned.

`object` : | A UDisksEncrypted.
`invocation` : | A GDBusMethodInvocation.
`arg_passphrase` : | Argument passed by remote caller.
`arg_options` : | Argument passed by remote caller.
`user_data` : | user data set when the signal handler was connected.
Returns : | `TRUE` if the invocation was handled, `FALSE` to let other signal handlers run.