C / C++ / MFC

lchild385 wrote:

...why can another server written in C++ still initialize at port 1234 ...

lchild385 wrote:

But i found out on some web-sites that some time, on window 2000/XP platform, two instances of server can still bind to the same port, (it looks like an error of OS rather than programing error, i think so). In this case, only one instance of server can get traffic from clients. But the other instance, instead of failing in binding, it still runs and gets the listening state.

lchild385 wrote:

(And thank you very much, Mark)

hapc wrote:

The problem is two server programs JServer and CServer can bind normally to the same port (use the same protocol TCP) and client program JClient and CClient can communicate normally with the correlative server program like two independent system (JClient with JServer, CClient with CServer).

waldermort wrote:

3 hours of debugging just to find that!

Michael ZY wrote:

extern "C" _declspec(dllexport) LRESULT WINAPI MouseProc(int nCode,WPARAM wParam,LPARAM lParam)

extern "C" _declspec(dllexport) LRESULT WINAPI MouseProc(int nCode,WPARAM wParam,LPARAM lParam){   
   if(nCode < 0)      
      return CallNextHookEx(g_hHook,nCode,wParam,lParam);      
   if(nCode == HC_ACTION)   
   {      
      switch(wParam)      
      {         
         case WM_MOUSEWHEEL:            
            short zDelta = (short)HIWORD(wParam);// The 'zDelta' always seem to be zero
            break;
         default:            
            return CallNextHookEx(g_hHook,nCode,wParam,lParam);      
      }   
   }
   return CallNextHookEx(g_hHook,nCode,wParam,lParam);
}