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在RichEdit中实现超链接

 2008-03-08 12:57:51 来源:WEB开发网   
核心提示:首先在Form上放置一个RichEdit,在窗体的构造函数中添加以下代码:__fastcall TMainForm::TMainForm(TComponent* Owner): TForm(Owner){unsigned mask = SendMessage(RichEdit1->Handle, EM_GETEV

  首先在Form上放置一个RichEdit。

在窗体的构造函数中添加以下代码:
__fastcall TMainForm::TMainForm(TComponent* Owner)
    : TForm(Owner)
{
  unsigned mask = SendMessage(RichEdit1->Handle, EM_GETEVENTMASK, 0, 0);
  SendMessage(RichEdit1->Handle, EM_SETEVENTMASK, 0, mask ENM_LINK);
  SendMessage(RichEdit1->Handle, EM_AUTOURLDETECT, true, 0); //自动检测URL

  RichEdit1->Text = "欢迎访问C++ Builder\n"
           "网址: http://www.ccrun.com\n"
           "偶的信箱:\n"
           "mailto::info@ccrun.com \n"
           "嘿嘿\n";
}

重载窗体的WndPRoc

1。在.h中添加:

  protected:
   virtual void __fastcall WndProc(Messages::TMessage &Message);

2。在.cpp中添加:
//---------------------------------------------------------------------------
void __fastcall TMainForm::WndProc(Messages::TMessage &Message)
{
  if (Message.Msg == WM_NOTIFY)
  {
    if (((LPNMHDR)Message.LParam)->code == EN_LINK)
    {
      ENLINK* p = (ENLINK *)Message.LParam;
      if (p->msg == WM_LBUTTONDOWN)
      {
        SendMessage(RichEdit1->Handle, EM_EXSETSEL, 0, (LPARAM)&(p->chrg));
        ShellExecute(Handle, "open", RichEdit1->SelText.c_str(), 0, 0, SW_SHOWNORMAL);
      }
    }
  }
  TForm::WndProc(Message);
}

Tags:RichEdit 实现 链接

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