Function

GObjectBindingTransformFunc

since: 2.26

Declaration

gboolean
(* GBindingTransformFunc) (
  GBinding* binding,
  const GValue* from_value,
  GValue* to_value,
  gpointer user_data
)

Description

A function to be called to transform from_value to to_value.

If this is the transform_to function of a binding, then from_value is the source_property on the source object, and to_value is the target_property on the target object. If this is the transform_from function of a G_BINDING_BIDIRECTIONAL binding, then those roles are reversed.

Available since: 2.26

Parameters

binding

Type: GBinding

A GBinding.

The data is owned by the caller of the function.

from_value

Type: GValue

The GValue containing the value to transform.

The data is owned by the caller of the function.

to_value

Type: GValue

The GValue in which to store the transformed value.

The data is owned by the caller of the function.

user_data

Type: gpointer

Data passed to the transform function.

The argument can be NULL.

The data is owned by the caller of the function.

Return value

Type: gboolean

TRUE if the transformation was successful, and FALSE otherwise.