[ CCode ( instance_pos = 3.9 ) ]
[ Version ( since = "2.26" ) ]
public delegate bool BindingTransformFunc (Binding binding, Value from_value, ref Value to_value)
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.
| binding |
a Binding |
| from_value |
the Value containing the value to transform |
| to_value |
the Value in which to store the transformed value |
| user_data |
data passed to the transform function |
|
true if the transformation was successful, and false otherwise |