SecTransformCustomSetAttribute

objc2_security

Function SecTransformCustomSetAttribute 

Source 
pub unsafe extern "C-unwind" fn SecTransformCustomSetAttribute(
    ref: SecTransformImplementationRef,
    attribute: &SecTransformStringOrAttribute,
    type: SecTransformMetaAttributeType,
    value: Option<&CFType>,
) -> Option<CFRetained<CFType>>
👎Deprecated: SecTransform is no longer supported
Available on crate feature SecCustomTransform only.
Expand description

Allow a custom transform to set an attribute value

Parameter ref: A SecTransformImplementationRef that is bound to an instance of a custom transform.

Parameter attribute: The name or the attribute handle of the attribute whose value is to be set.

Parameter type: The type of data to be retrieved for the attribute. See the discussion on SecTransformMetaAttributeType for details.

Parameter value: The new value for the attribute

Returns: A CFErrorRef if an error occured , NULL otherwise.

Unlike the SecTransformSetAttribute API this API can set attribute values while a transform is executing. These values are limited to the custom transform instance that is bound to the ref parameter.

§Safety

  • ref must be a valid pointer.
  • attribute should be of the correct type.
  • value should be of the correct type.