//返回值的是CommandCallResult的指针
public IntPtr OnCommandCall(ref PlistPackageArgs args)
{
CommandCallResult rs = default(CommandCallResult);
rs.FreeCommandCallResult = FreeCommandCallResult;
rs.type = ResultType.RESULT_TEXT;//告诉SiriProxy,返回的是文本，不带任何plist xml标记的文本
string text = null;
if (CommandCallEvent != null)
{
EventArgs <CommandCallArgs> arg = new EventArgs <CommandCallArgs>((CommandCallArgs)args);
CommandCallEvent(this, arg);
if (!string.IsNullOrEmpty(arg.Data.ResultText))
{
text = arg.Data.ResultText;
}
rs.type = arg.Data.Type;
}
if (null == text)
{
text = StringHelper.PtrToStringAnsi(args.responseText);//Marshal.PtrToStringAnsi(args.responseText);
}
rs.result_text = Marshal.StringToHGlobalAnsi(text);
IntPtr p = Marshal.AllocHGlobal(Marshal.SizeOf(rs));
Marshal.StructureToPtr(rs, p, true);
return(p);
}
public void FreeCommandCallResult(IntPtr p)
{
CommandCallResult rs = (CommandCallResult)Marshal.PtrToStructure(p, typeof(CommandCallResult));
if (rs.result_text != IntPtr.Zero)
{//释放为result_text分配的非托管内存
Marshal.FreeHGlobal(rs.result_text);
}
Marshal.FreeHGlobal(p);//释放为CommandCallResult结构分配的非托管内存
}
