Delphi ActiveX

Append Encoded Binary Data to StringBuilder

Demonstrates how to append encoded binary data to the contenets of a StringBuilder. 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;
bd: TChilkatBinData;
sb: TChilkatStringBuilder;

begin
success := 0;

bd := TChilkatBinData.Create(Self);

success := bd.LoadFile('qa_data/jpg/starfish.jpg');
if (success = 0) then
  begin
    Memo1.Lines.Add('Failed to load file.');
    Exit;
  end;

// For example, let's say we want construct simple JSON containing the base64 representation of the above JPG file.
sb := TChilkatStringBuilder.Create(Self);
sb.Append('{ "jpg": "');
// GetEncodedSb appends the enocded representation of the binary data to the StringBuiler passed in the 2nd arg.
bd.GetEncodedSb('base64',sb.ControlInterface);
sb.Append('" }');

Memo1.Lines.Add(sb.GetAsString());

// Output looks like this:
//  { "jpg": "/9j/4AAQSkZJRgABAg...rcQ+vo//2Q==" }
end;