MSG* msg = (MSG*) lParam;
if(code == HC_ACTION)
{
	if(msg->message == WM_NCMOUSEMOVE)
	{
		if(msg->wParam == HTCLOSE)
		{
			SendMessage(hwndTarget, WM_DESTROY, wParam, lParam);
		}
	}
}

return CallNextHookEx(g_hkMsg, code, wParam, lParam);

DWORD dwTarget = 0;
POINT point;

GetCursorPos(&point);

hwndTarget = WindowFromPoint(point);
dwTarget = GetWindowThreadProcessId(hwndTarget, NULL);
g_hkMsg = SetWindowsHookEx(WH_GETMESSAGE, CallWndProc, g_hInstance, 0);
if(g_hkMsg)
{
	MessageBox(NULL, L"Message hook installed, press OK to uninstall.", L"HLHookTest", MB_ICONEXCLAMATION);
	UnhookWindowsHookEx(g_hkMsg);
}
else
	MessageBox(NULL, L"Hook installation failed.", L"HLHookTest", MB_ICONERROR);

return 0;