How Tos

HOW: Developing Delphi applications that manage movement

The information in this article applies to:

• KinectKit

Summary

You can develop Delphi applications that manage Kinect sensors using your favorite version of Delphi.

More Information

KinectKit includes a Delphi Pascal source file KinectKit.pas comprised of the Delphi classes that manage Kinect sensors. It also includes a Delphi Pascal source file ChantShared.pas comprised of common Delphi classes that all Chant libraries use.

To access the KinectKit Delphi classes within your application, first add a project reference to the KinectKit Delphi source files:

To access the KinectKit Delphi classes within your application, add a reference to the ChantShared and KinectKit units in your uses clause:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ChantShared, KinectKit;

Add an event handler declaration and Object instance variable to the application declarations:

type
  TForm1 = class(TForm)
    ...
  private
    { Private declarations }
  public
    { Public declarations }
    procedure OnHasEvent(var msg: TMessage);
      message WM_APP+8;
  end;

var
  Form1: TForm1;
  ChantKM1: TChantKM;

Object Instantiation

Instantiate an instance, set the license and serial properties, and set the event handler message.

procedure TForm1.FormCreate(Sender: TObject);
begin
    ChantKM1 := TChantKM.Create();
    // Set license properties
    ChantKM1.SetStringProperty(CSPLicense,'LicenseRegistrationNumber');
    ChantKM1.SetStringProperty(CSPSerials,'LicenseSerialNumber');

    // Define the HasEvent callback message
    ChantKM1.SetWindowMessage(Handle, WM_APP+8, 0, 0);

end;

Event Callbacks

Event callbacks are the mechanism in which the component library communications information back to the application such as compilation is complete or there was an error.

procedure TForm1.OnHasEvent(var msg: TMessage);
var
  aTChantKMEvent: TChantKMEvent;
  i: Integer;
begin
    numberOfEvents := ChantKM1.GetResourceCount(CSREvent,0,0);
    for i := 0 to numberOfEvents - 1 do
    begin
      // Get the event from the event queue
      aTChantKMEvent := ChantKM1.GetChantKMEvent(0);
      case aTChantKMEvent.ChantCallback of
        CCKSStatusChanged:
        ...

      end;

      ...

      // Remove the event from the event queue
      ChantKM1.RemoveResource(CSREvent,0);
      aTChantKMEvent.Destroy();
    end;
end;

Deployment Checklist

When you are ready to deploy your Delphi application, you need to ensure you have a valid license, bundle the correct Chant component library, and configure your installation properly on the target system. Review the following checklist before deploying your applications:

Sample Projects

Delphi sample projects are installed at the following location:

For additional help with KinectKit, contact Chant Support via or web.