Exemplo n.º 1
0
        // ************************************************************************

        // ************************************************************************
        // Default filter function
        protected int CoreHookProc(int code, IntPtr wParam, IntPtr lParam)
        {
            if (code < 0)
            {
                return(CallNextHookEx(m_hhook, code, wParam, lParam));
            }

            // Let clients determine what to do
            HookEventArgs e = new HookEventArgs();

            e.HookCode = code;
            e.wParam   = wParam;
            e.lParam   = lParam;
            OnHookInvoked(e);

            // Yield to the next hook in the chain
            return(CallNextHookEx(m_hhook, code, wParam, lParam));
        }
Exemplo n.º 2
0
        // ************************************************************************


        // ************************************************************************
        // Handles the hook event
        private void CbtHookInvoked(object sender, HookEventArgs e)
        {
            CbtHookAction code   = (CbtHookAction)e.HookCode;
            IntPtr        wParam = e.wParam;
            IntPtr        lParam = e.lParam;

            // Handle hook events (only a few of available actions)
            switch (code)
            {
            case CbtHookAction.HCBT_CREATEWND:
                HandleCreateWndEvent(wParam, lParam);
                break;

            case CbtHookAction.HCBT_DESTROYWND:
                HandleDestroyWndEvent(wParam, lParam);
                break;

            case CbtHookAction.HCBT_ACTIVATE:
                HandleActivateEvent(wParam, lParam);
                break;
            }

            return;
        }