一个键盘的问题！(30分)

我想用HOOK监视键盘？请问怎么知道键盘的Enter回车键是否按下！如果ENTER键按下了！该怎么写？

function KeyboardHookHandler(iCode: Integer; wParam: WPARAM; lParam: LPARAM): LRESULT; stdcall; export;<br>const<br>&nbsp; _KeyPressMask = $80000000;<br>begin<br>&nbsp; ....<br>&nbsp; if ((lParam and _KeyPressMask) = 0) then<br>&nbsp; begin<br>&nbsp; &nbsp; if wParam = 13 then ENTER键按下<br>&nbsp; end;<br>&nbsp; ...<br>end;

接受答案了.