(Delphi ActiveX) Upload Files to a Web Server - Simplest Example

This is the simplest example for uploading some files to a web server. the BlockingUpload call is synchronous and returns when the upload is finished (or failed).

A server-side C# example showing how to receive an upload is located at C# ASP.NET Code to Receive Upload

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

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
upload: TChilkatUpload;
success: Integer;

begin
upload := TChilkatUpload.Create(Self);

// Specify the page (ASP, ASP.NET, Perl, Python, Ruby, CGI, etc)
// that will receive and process the HTTP Upload.
upload.Hostname := 'www.mywebserver.com';
upload.Path := '/receiveUpload.aspx';

// Add one or more files to be uploaded.
upload.AddFileReference('file1','dude.gif');
upload.AddFileReference('file2','swordfish.xml');
upload.AddFileReference('file3','sample.doc');

// Do the upload.  The method returns when the upload
// is completed.
// This component also includes asynchronous upload capability,
// which is demonstrated in another example.
success := upload.BlockingUpload();
if (success <> 1) then
  begin
    Memo1.Lines.Add(upload.LastErrorText);
  end
else
  begin
    Memo1.Lines.Add('Files uploaded!');
  end;
end;