/// <summary>
/// Constructor for string input argument for an action
/// </summary>
/// <remarks>Intended to be write only (its value is written on construction and not be later read)</remarks>
/// <param name="aParameter">Defines the name plus any bounds to the value for the argument.
/// Must have been previously added to the action using Action.AddInputParameter</param>
/// <param name="aValue">Value for the argument</param>
public ArgumentString(ParameterString aParameter, String aValue)
{
IntPtr value = InteropUtils.StringToHGlobalUtf8(aValue);
iHandle = ActionArgumentCreateStringInput(aParameter.Handle(), value);
Marshal.FreeHGlobal(value);
}
/// <summary>
/// Constructor for string output argument for an action
/// </summary>
/// <remarks>Intended to be created without any value. The value is later set after
/// CpService.InvokeAction is called but before the invocation's callback is run)</remarks>
/// <param name="aParameter">Defines the name plus any bounds to the value for the argument.
/// Must have been previously added to the action using Action.AddOutputParameter</param>
public ArgumentString(ParameterString aParameter)
{
iHandle = ActionArgumentCreateStringOutput(aParameter.Handle());
}