Hi !
I have the following problem: Having a web page loaded into a TWebBrowser
hosted in my Delphi application, I want to have Delphi code execute a
JavaScript function embedded in the HTML page. How can I do that ?
To help understand what I mean, I've done a sample program (see below)
loading an HTML page into a TWebBrowser and having a JavaScript function
named "MyFunction". I want to have Delphi code (let's say a button's event
handler) calling that JavaScript. How can I do that ?
procedure TForm1.Button1Click(Sender: TObject);
var
sl : TStringList;
ms : TMemoryStream;
HTMLCode : String;
const
CRLF = #13#10;
begin
HtmlCode := '<HTML>' +
'<HEADER>' +
'<SCRIPT type="text/javascript">' + CRLF +
' function MyFunction() {' + CRLF +
' alert("Hello !");' + CRLF +
' }' + CRLF +
'</SCRIPT>' + CRLF +
'</HEADER>' +
'<BODY>' +
'Hello Delphi !' +
'</BODY>' +
'</HTML>';
WebBrowser1.Navigate('about:blank');
while WebBrowser1.ReadyState < READYSTATE_INTERACTIVE do
Application.ProcessMessages;
if Assigned(WebBrowser1.Document) then begin
sl := TStringList.Create;
try
ms := TMemoryStream.Create;
try
sl.Text := HTMLCode;
sl.SaveToStream(ms);
ms.Seek(0, 0);
(WebBrowser1.Document as
IPersistStreamInit).Load(TStreamAdapter.Create(ms));
finally
ms.Free;
end;
finally
sl.Free;
end;
end;
end;
Regards,
--
francois.pie...@overbyte.be
Author of ICS (Internet Component Suite, freeware)
Author of MidWare (Multi-tier framework, freeware)
http://www.overbyte.be
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