🚀 go-pugleaf

Hi, I have a question about window messages but I dont know whether I am at
the right group ..
Ayway,  my problem is the following:

I have several threads. I want to create specific message handlers for each
thread. I mean WM_MESSAGE1 for thread 1 and
WM_MESSAGE2 and  WM_MESSAGE2 for thread 2 etc.And in each thread I want to
broadcast messages to all other threads.
I tried to use in thread .h file...->

#define WM_MYFIRSTMESSAGE  (WM_APP + 400)
void __fastcall MyMessageHandler(TMessage &Message);

BEGIN_MESSAGE_MAP
    MESSAGE_HANDLER(WM_MYFIRSTMESSAGE, TMessage, MyMessageHandler)
END_MESSAGE_MAP(TThread);

(Note: it says that if you will broadcast messages, you have to register
message, but I dont know how to do that because MESSAGE_HANDLER wants a
const parameter.)
 In Execute Method->

                    MSG msg;
                    HANDLE HWND
                   if ((bRet = GetMessage( &msg,HWND, 0, 0)) != 0)
                   {
                        if (msg.message==WM_MYFIRSTMESSAGE)
                        {
                                   TranslateMessage(&msg);
                                    DispatchMessage(&msg);
                        }
                    }

void __fastcall TExampleThread::MyMessageHandler(TMessage &Message)
{
     int a=2;
}

and I tried to use in another thread->
        ShowMessage(PostMessage(HWND_BROADCAST,WM_MYFIRSTMESSAGE, 1,2));

ShowMessage(PostThreadMessage(ExampleThread->ThreadID,WM_MYFIRSTMESSAGE,
1,2));

Both returns 1 but, my first thread cant get message?
So, can anyone explain how messages work in threads?:)

Thanks for your time...