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unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ComCtrls;
type
TForm1 = class(TForm)
RichEdit1: TRichEdit;
Button1: TButton;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
procedure WndProc(var Msg: TMessage); override;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
uses RichEdit, shellapi;
procedure InitRichEditURLDetection(RE: TRichEdit);
var
mask: Word;
begin
mask := SendMessage(RE.Handle, EM_GETEVENTMASK, 0, 0);
SendMessage(RE.Handle, EM_SETEVENTMASK, 0, mask or ENM_LINK);
SendMessage(RE.Handle, EM_AUTOURLDETECT, Integer(True), 0);
end;
procedure TForm1.Button1Click(Sender: TObject);
var
cf2: CHARFORMAT2;
begin
ZeroMemory(@cf2, sizeof(CHARFORMAT2));
cf2.cbSize := sizeof(CHARFORMAT2);
cf2.dwMask := CFM_LINK;
cf2.dwEffects := CFE_LINK;
RichEdit1.Perform(EM_SETCHARFORMAT, SCF_SELECTION, Integer(@cf2));
RichEdit1.SelStart := length(RichEdit1.Text);
end;
procedure TForm1.FormCreate(Sender: TObject);
var
s: string;
begin
InitRichEditURLDetection(RichEdit1);
s := '关于' + #13#10 + 'www.baidu.com' + #13#10 + '谢谢大家的支持';
RichEdit1.Text := s;
end;
procedure TForm1.WndProc(var Msg: TMessage);
var
p: TENLink;
sURL: string;
CE: TRichEdit;
begin
if (Msg.Msg = WM_NOTIFY) then
begin
if (PNMHDR(Msg.lParam).code = EN_LINK) then
begin
p := TENLink(Pointer(TWMNotify(Msg).NMHdr)^);
if (p.Msg = WM_LBUTTONDOWN) then
begin
try
CE := TRichEdit(ActiveControl);
SendMessage(CE.Handle, EM_EXSETSEL, 0, Longint(@(p.chrg)));
showmessage(CE.SelText);
sURL := CE.SelText;
Caption := sURL;
ShellExecute(Handle, 'open', PChar(sURL), nil, nil, SW_SHOWNORMAL);
except
end;
end;
end;
end;
inherited;
end;
end.
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