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在RichEdit中实现超链接

51自学网 http://www.51zixue.net
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);
}

 

 

 
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