Posting Data with Indy and Receiving it to TWebBrowser - delphi

Question

I am trying to post data to bing with this code
function PostExample: string;
var
lHTTP: TIdHTTP;
lParamList: TStringList;
begin
lParamList := TStringList.Create;
lParamList.Add('q=test');
lHTTP := TIdHTTP.Create(nil);
try
Result := lHTTP.Post('http://www.bing.com/', lParamList);
finally
FreeAndNil(lHTTP);
FreeAndNil(lParamList);
end;
end;
And then, how can I get the result to the TWebBrowser and display it?

Answer 1

Try LoadDocFromString:
procedure LoadBlankDoc(ABrowser: TWebBrowser);
begin
ABrowser.Navigate('about:blank');
while ABrowser.ReadyState <> READYSTATE_COMPLETE do
begin
Application.ProcessMessages;
Sleep(0);
end;
end;
procedure CheckDocReady(ABrowser: TWebBrowser);
begin
if not Assigned(ABrowser.Document) then
LoadBlankDoc(ABrowser);
end;
procedure LoadDocFromString(ABrowser: TWebBrowser; const HTMLString: wideString);
var
v: OleVariant;
HTMLDocument: IHTMLDocument2;
begin
CheckDocReady(ABrowser);
HTMLDocument := ABrowser.Document as IHTMLDocument2;
v := VarArrayCreate([0, 0], varVariant);
v[0] := HTMLString;
HTMLDocument.Write(PSafeArray(TVarData(v).VArray));
HTMLDocument.Close;
end;

Answer 2

Or you can use the memory streams for loading
uses
OleCtrls, SHDocVw, IdHTTP, ActiveX;
function PostRequest(const AURL: string; const AParams: TStringList;
const AWebBrowser: TWebBrowser): Boolean;
var
IdHTTP: TIdHTTP;
Response: TMemoryStream;
begin
Result := True;
try
AWebBrowser.Navigate('about:blank');
while AWebBrowser.ReadyState < READYSTATE_COMPLETE do
Application.ProcessMessages;
Response := TMemoryStream.Create;
try
IdHTTP := TIdHTTP.Create(nil);
try
IdHTTP.Post(AURL, AParams, Response);
if Response.Size > 0 then
begin
Response.Position := 0;
(AWebBrowser.Document as IPersistStreamInit).Load(
TStreamAdapter.Create(Response, soReference));
end;
finally
IdHTTP.Free;
end;
finally
Response.Free;
end;
except
Result := False;
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
var
Params: TStringList;
begin
Params := TStringList.Create;
try
Params.Add('q=test');
if not PostRequest('http://www.bing.com/', Params, WebBrowser1) then
ShowMessage('An unexpected error occured!');
finally
Params.Free;
end;
end;