Delphi ActiveX

URL Encoding and Decoding

Demonstrates URL encoding/decoding using the HTTP convenience methods. 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
http: TChilkatHttp;
s: WideString;
encoded: WideString;
decoded: WideString;

begin
http := TChilkatHttp.Create(Self);

s := 'Hello World! 100% sure.';

encoded := http.UrlEncode(s);
Memo1.Lines.Add('URL encoded: ' + encoded);

// Space → %20
// ! → %21
// % → %25

decoded := http.UrlDecode(encoded);
Memo1.Lines.Add('URL decoded: ' + decoded);

// Output:

// URL encoded: Hello%20World%21%20100%25%20sure.
// URL decoded: Hello World! 100% sure.
end;