### Method

# Clutter AlignConstraint set_source

#### Declaration [src]

    void
    clutter_align_constraint_set_source (
      ClutterAlignConstraint* align,
      ClutterActor* source
    )

#### Description [src]

Sets the source of the alignment constraint.

Sets property | `Clutter.AlignConstraint:source`

#### Parameters

`source`

  Type: `ClutterActor`

  A `ClutterActor`, or `NULL` to unset the source.

  The argument can be `NULL`.
  The data is owned by the caller of the function.