Delphi ActiveX

Transition from Http.GetHead to Http.HttpNoBody

Provides instructions for replacing deprecated GetHead method calls with HttpNoBody. Delphi ActiveX

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
http: TChilkatHttp;
url: WideString;
resp1: IChilkatHttpResponse;
resp2: TChilkatHttpResponse;

begin
success := 0;

http := TChilkatHttp.Create(Self);
url := 'https://www.example.com/';

// ------------------------------------------------------------------------
// The GetHead method is deprecated:

resp1 := http.GetHead(url);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add(IntToStr(resp1.StatusCode));

// ------------------------------------------------------------------------
// Do the equivalent using HttpNoBody.
// Your application creates a new, empty response object which is passed 
// in the last argument and filled with the HTTP response upon success.

resp2 := TChilkatHttpResponse.Create(Self);
success := http.HttpNoBody('HEAD',url,resp2.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add(IntToStr(resp2.StatusCode));
end;