dhtmlx window and dragging

Hi,
I’ve this scenario (more or less. I simplify it): I’m using the dhtmlxwindow like an image viewer, so basically I’m opening an image inside the window.
I’d like to use the image itself as an handle for the drag&drop of the window.
I have hidden the default header of the window (very simple using your API), but now I’m looking for a way to start the drag & drop effect of the window “programmatically”. That is, I’d like to call it from some javascript code I’m linking to the above mentioned image.

Is this possible?

Best regards, Andrea Pirola