Thread: SetWindowsHookEx in Win 9x/ME/NT4

Hello...

I'm trying use SetWindowsHookEx() in windows 9x/ME/NT4.

Somebody know?

Obrigado...

I use with KeyboardProc (WH_KEYBOARD) and MessageProc (WH_MSGFILTER).

...

I want make this...

What are you having problems with? You need to narrow your question down.

I'm making thus:

Code:

/* Global Variables */

HHOOK hMsgFilter;
HWND ToolBar;

/* ... */

LRESULT CALLBACK MessageProc(int Code, WPARAM wParam, LPARAM lParam)
{
   RECT rc;
   MSG *msg;
   long x, y;
   
   if(Code < 0)
   {
      return CallNextHookEx(hMsgFilter, Code, wParam, lParam);
   }
   
   msg = (MSG*)lParam;
   
   if(Code == MSGF_MENU)
   {
      GetWindowRect(ToolBar,&rc);
      
      if(msg->message == WM_MOUSEMOVE)
      {
         x = LOWORD(msg->lParam); y = HIWORD(msg->lParam);
         x -= rc.left; y -= rc.top;
            
         SendMessage(ToolBar,WM_MOUSEMOVE,msg->wParam,MAKELPARAM(x,y));
      }
   }
   
   return CallNextHookEx(hMsgFilter,Code,wParam,lParam);
}

/* ... */

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
   hMsgFilter = SetWindowsHookEx(WH_MSGFILTER,(HOOKPROC)MessageProc,GetModuleHandle(NULL),0);
   
   switch (msg)
   {
      case WM_DESTROY:
      {
         UnhookWindowsHookEx(hMsgFilter);
         PostQuitMessage(0);
      }break;
      
      default:
        return DefWindowProc(hwnd, msg, wParam, lParam);
   }

   return 0;
}

In this way not function for windows 9x/ME/NT4.

Obrigado...

I just want know, why this fails in Win9x/ME/NT4...