We can incorporate the Progress Bar(Status Bar) in the D2K(Forms) as below.

1. Create static Canvas with Small Size & Place the Control item (text item) with colour or Visual attribute assign to the text item.

Create One window with the same sizes of the static canvas, assign the window properties of the cavas.
2.  Call the below code before the execute query option and  when new form instance , based on requirement.

Call item, window, canvas.
Synchronize;
Synchronize;


----Note: The Synchronize option is keep on hitting the server, so not encouragebal in the point of performance.

Thanks & Best Regards,
Venkata