c++builder如何获取键盘信息

c++builder怎么获取键盘信息
c++builder怎么获取键盘敲下的信息，用什么函数？然后怎么将获取的信息加入到Edit1中？

[解决办法]

C/C++ code

//.hpublic:        // User declarations    __fastcall TForm1(TComponent* Owner);    void __fastcall AppMessage(tagMSG &Msg, bool &Handled) ; //添加};//---------------------------------------//.cpp__fastcall TForm1::TForm1(TComponent* Owner)    : TForm(Owner){ Application->OnMessage=AppMessage;}//---------------------------------------void __fastcall TForm1::AppMessage(tagMSG &Msg, bool &Handled){  if (Msg.message == WM_KEYDOWN)  {       if(Msg.wParam ==VK_F12)    //F12       {          ShowMessage("F12");       }       if(Msg.wParam ==13)  //回车       {          ShowMessage("回车键");       }  }}