Problem with calling function from user32.dll

Hi,



I am trying to create script which will check whether some process have hung window. I have found "IsHungAppWindow" Win32Api function (http://msdn.microsoft.com/en-us/library/ms633526(VS.85).aspx) that is suitable for my purposes, but I have problems with its calling from my script.



Attempt to call this function via Win32API TestComplete's program object leads to error: "Object doesn't support this property or method".



  var oWnd = Sys.WaitProcess("MyProccess").WaitWindow("MyWindow");

        if(oWnd.Exists)

  {

  var bIsHungWnd = Win32API.IsHungAppWindow(oWnd.Handle);  // Here I got error message.

  ...

  }



Also I have found information that "IsHungAppWindow" function defined in "user32.dll". So I am trying to call this function via DLL TestComplete's program object in the following way:



var oWnd = Sys.WaitProcess("MyProccess").WaitWindow("MyWindow");

if(oWnd.Exists)

  {

  var Def_Environment = DLL.DefineEnvironment(true);


                var Def_DLL = Def_Environment.DefineDLL("USER32");


  Def_DLL.DefineProc("IsAppWndHung", vt_i4, vt_bool);


  Def_DLL.DefineAlias("IsHungAppWindow", "IsAppWndHung");


                var Lib = Def_Environment.Load("C:\\Windows\\System32\\USER32.dll");


        

  var bIsHungWnd = Lib.IsHungAppWindow(oWnd.Handle);  // Here I got error "Object doesn't support this property or method"

  ...

  }




 Could someone help me to solve the problem with using "IsHungAppWindow" Win32 api function, or please just point me to the wrong place in my script.



Thanks in advance,

John.