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unit Unit11;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, OleCtrls, SHDocVw, ExtCtrls;
type
TForm11 = class(TForm)
btn1: TButton;
img1: TImage;
wb1: TWebBrowser;
btn2: TButton;
mmo1: TMemo;
edt1: TEdit;
procedure FormCreate(Sender: TObject);
procedure btn2Click(Sender: TObject);
procedure btn1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form11: TForm11;
implementation
uses ActiveX, wininet, mshtml, Clipbrd;
{$R *.dfm}
procedure DomImg2Image(id:string; wb:TWebBrowser; img:TImage );
var
rang:IHTMLControlRange;
begin
rang:=((IHTMLDocument2(wb.Document).body as HTMLBody).createControlRange)as
IHTMLControlRange;
rang.add(IHTMLDocument2(wb.Document).images.item(id,EmptyParam)as
IHTMLControlElement);
rang.execCommand('Copy',False,0);
img.Picture.Assign(ClipBoard);
end;
procedure TForm11.btn1Click(Sender: TObject);
var
i:Integer;
rang:IHTMLControlRange;
begin
//遍历图片元素, 在memo中显示Img的ID和src属性
mmo1.clear;
for i:= 0 to IHTMLDocument2(wb1.Document).images.length-1 do
begin
mmo1.lines.add((IHTMLDocument2(wb1.Document).images.item(i,EmptyParam)as
IHTMLElement).getAttribute('id',0));
mmo1.lines.add((IHTMLDocument2(wb1.Document).images.item(i,EmptyParam)as
IHTMLElement).getAttribute('src',0));
end;
end;
procedure TForm11.btn2Click(Sender: TObject);
begin
//edt1.Text是Img的ID值, webbrowse对象, TImage
DomImg2Image(edt1.Text, wb1, img1);
end;
procedure TForm11.FormCreate(Sender: TObject);
begin
wb1.Navigate('http://www.3464.com/');
end;
end.
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