使用 TWebBrowser 编辑网页

本例效果图:

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代码文件:

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unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, OleCtrls, SHDocVw, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    WebBrowser1: TWebBrowser;
    Panel1: TPanel;
    Button1: TButton;
    CheckBox1: TCheckBox;
    procedure FormCreate(Sender: TObject);
    procedure CheckBox1Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  ShowMessage(WebBrowser1.OleObject.document.body.innerText);
end;

procedure TForm1.CheckBox1Click(Sender: TObject);
begin
  {这里是让整个页面可编辑, 也可以单独编辑某个元素}
  WebBrowser1.OleObject.document.body.contentEditable := CheckBox1.Checked;
  {有些浏览器需要这样设置: document.designMode = "On";}
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Panel1.Align := alTop;
  CheckBox1.Anchors := [akTop, akRight];
  Button1.Anchors := CheckBox1.Anchors;
  CheckBox1.Caption := '编辑';
  Button1.Caption := '显示网页文本';

  WebBrowser1.Align := alClient;
  WebBrowser1.Navigate('http://www.cnblogs.com/del/archive/2009/04/16/1437417.html');
end;

end.

窗体文件:

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object Form1: TForm1
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 385
  ClientWidth = 632
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'Tahoma'
  Font.Style = []
  OldCreateOrder = False
  Position = poScreenCenter
  OnCreate = FormCreate
  PixelsPerInch = 96
  TextHeight = 13
  object WebBrowser1: TWebBrowser
    Left = 8
    Top = 48
    Width = 563
    Height = 321
    TabOrder = 0
    ControlData = {
      4C000000303A00002D2100000000000000000000000000000000000000000000
      000000004C000000000000000000000001000000E0D057007335CF11AE690800
      2B2E126208000000000000004C0000000114020000000000C000000000000046
      8000000000000000000000000000000000000000000000000000000000000000
      00000000000000000100000000000000000000000000000000000000}
  end
  object Panel1: TPanel
    Left = 0
    Top = 1
    Width = 633
    Height = 32
    Caption = 'Panel1'
    TabOrder = 1
    object Button1: TButton
      Left = 440
      Top = 4
      Width = 99
      Height = 25
      Caption = 'Button1'
      TabOrder = 0
      OnClick = Button1Click
    end
    object CheckBox1: TCheckBox
      Left = 552
      Top = 8
      Width = 73
      Height = 17
      Caption = 'CheckBox1'
      TabOrder = 1
      OnClick = CheckBox1Click
    end
  end
end