Module parameter

Reading and setting node parameters, setting expressions and keyframes.

Different parameter types are modeled with a Parameter enum, to get to a concrete type, use pattern matching:

use hapi_rs::session::new_in_process;
use hapi_rs::parameter::*;
let session = new_in_process(None).unwrap();
let lib = session.load_asset_file("otls/hapi_parms.hda").unwrap();
let node = lib.try_create_first().unwrap();
if let Parameter::String(p) = node.parameter("single_string").unwrap() {
    assert_eq!(p.get(0).unwrap(), "hello");
    assert!(p.set(0, "world").is_ok());
}

Extra parameter features are available in ParmBaseTrait

Structs

• FloatParameter
  Represents float parameters, including Color type.
• IntParameter
  Represents integer parameters, including Button type
• KeyFrame
  For parameter animation
• ParmHandle
  An internal handle to a parameter
• ParmInfo
  Documentation
• StringParameter
  Represents string parameters of many different types.

Enums

• Parameter
  Enum of different parameter types.
• ParmType

Traits

• ParmBaseTrait
  Common trait for parameters