form controll threading

I realise this topic has been covered before,
but i am struggling to grasp the concept of delegates and stuff.

my program has a multi lines textbox, and a function (which runs on a different thread) that runs in a loop continuesly receiving data from a socket. this data comes in the form of a string, and it is made into a system.string, and is then appended to the textbox

the problem i am having is that the textbox is created on thread1, where has the function is on thread2. trying to access the textbox from thread 2 makes baby jesus cry. I understand that this is where i need to use the invoke methods, and delegate functions, but as to implimenting these processing to solve my delema is still beyond my grasp.

i can show you what i have so far in terms of relevant code

Code:

public ref class Form1 : public System::Windows::Forms::Form
	{

	public:
		delegate void OutPutBoxAppend(System::String^ ms);
		OutPutBoxAppend^ myDelegate;
			
		Form1(void)
		{	
			CONNECTED = false;
			connectSockets();
			myDelegate = gcnew OutPutBoxAppend(this, &Form1::OutPutBoxWork);
			Application::Run(gcnew loginForm(commandSocket));
			InitializeComponent();

			Sleep(10);
			Thread^ oThread = gcnew Thread(gcnew ParameterizedThreadStart(Form1::ThreadProc1));
			oThread->Start(this);
			//
			//TODO: Add the constructor code here
			//
		}

		void OutPutBoxWork(System::String^ ms)
		{
			this->ouputBox->AppendText(ms);	
		}

/////////////////////////////////////////////////////////////////////////////////////////////////////--code gap

		static void ThreadProc1(System::Object ^obj)
		{
			Form1^ ob = (Form1^) obj;
			
			for(;; )
			{
				string recvStr;
				if((recvStr = ob->recvData(ob->getMonSocket())) == "")
				{
					MessageBox::Show(L"could not receive stream");
					break;
				}else{
					
					using namespace System::Runtime::InteropServices;
					recvStr.append("\r\n");
					System::String^ ms;
					ms = Marshal::PtrToStringAnsi(static_cast(const_cast(recvStr.c_str())));

					if(ob->ouputBox->InvokeRequired)
					{
						OutPutBoxAppend ^d = gcnew OutPutBoxAppend(^ms);
						ob->Invoke(ob->myDelegate);
					}else{
						ob->ouputBox->AppendText(ms);
					}
				}
			}

		}

Edit: This obviously doesnt build, i was trying to addapt one of the examples givin on the msdn website.