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Application.OnMessage := IEMessageHandler; 这是用作对webbrowser回车事件处理消息 2。打开网页时作相应处理,进入网页编辑状态 webbrowser1.Navigate(htmfile); while webbrowser1.busy do Application.ProcessMessages; (webbrowser1.Document as IHTMLDocument2).designMode := 'On'; 3.加入一按钮,处理点击时使用网页中文字变红 ,这对粗 procedure Tformmp3.Button2Click(Sender: TObject); begin with webbrowser1.Document as IHTMLDocument2 do begin execCommand('ForeColor', False, 'red'); //使选中文字变红 execCommand('Bold', False, 1); //加粗选中文字 webbrowser1.ExecWB (OLECMDID_SAVE,OLECMDEXECOPT_DONTPROMPTUSER ); //这是对修改后 的网页保存 end; end; 4.响应回车等的消息处理程序 procedure Tformmp3.IEMessageHandler(var Msg: TMsg; var Handled: Boolean); const StdKeys = [VK_TAB, VK_RETURN]; { 标准键 } ExtKeys = [VK_DELETE, VK_BACK, VK_LEFT, VK_RIGHT]; { 扩展键 } fExtended = $01000000; { 扩展键标志 } begin Handled := False; with Msg do if ((Message >= WM_KEYFIRST) and (Message <= WM_KEYLAST)) and ((wParam in StdKeys) or (GetKeyState(VK_CONTROL) < 0) or (wParam in ExtKeys) and ((lParam and fExtended) = fExtended)) then try if IsChild(webbrowser1.Handle, hWnd) then { 处理所有的浏览器相关消息 } begin with webbrowser1.Application as IOleInPlaceActiveObject do Handled := TranslateAccelerator(Msg) = S_OK; if not Handled then begin Handled := True; TranslateMessage(Msg); DispatchMessage(Msg); end; end; except end; end; // IEMessageHandler |
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