Delphi DLL

Pretty Print JSON (Formatter, Beautifier)

See more JSON Examples

Demonstrates how to emit JSON in a pretty, human-readable format with indenting of nested arrays and objects. Delphi DLL

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
json: HCkJsonObject;
jsonStr: PWideChar;

begin
success := False;

json := CkJsonObject_Create();

jsonStr := '{"name": "donut","image":{"fname": "donut.jpg","w": 200,"h": 200},"thumbnail":{"fname": "donutThumb.jpg","w": 32,"h": 32}}';

success := CkJsonObject_Load(json,jsonStr);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkJsonObject__lastErrorText(json));
    Exit;
  end;

// To pretty-print, set the EmitCompact property equal to False
CkJsonObject_putEmitCompact(json,False);

// If bare-LF line endings are desired, turn off EmitCrLf
// Otherwise CRLF line endings are emitted.
CkJsonObject_putEmitCrLf(json,False);

// Emit the formatted JSON:
Memo1.Lines.Add(CkJsonObject__emit(json));

CkJsonObject_Dispose(json);

end;