unit1.pas

delphi中调用javascript示例

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    WebBrowser1: TWebBrowser;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
var
  HtmlPath: string;
begin
  WebBrowser1.Left := -WebBrowser1.Width; {隐藏 WebBrowser1}
  HtmlPath := ExtractFilePath(ParamStr(0)) + 'Test.htm';
  WebBrowser1.Navigate(HtmlPath);
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  str: Variant;
begin
  str := WebBrowser1.OleObject.document.parentWindow.JsStr2('12345');
  ShowMessage(str);
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  num: Variant;
begin
  num := WebBrowser1.OleObject.document.parentWindow.JsNum2(4);
  ShowMessage(num);
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
  WebBrowser1.OleObject.document.parentWindow.JsMsg('ABC');

  {也可以这样:}
  WebBrowser1.OleObject.document.parentWindow.execScript('JsMsg("ABCDEFG")', 'JavaScript');
end;

end.