Dropping file over app icon in MAC

I have developed an application in QT which manipulates images. I want to provide a feature where user can select few

images and drop them on my application icon in finder / dock icon. This should run my application and it should set the

argc and argv variables of my application.

I do know that I can receive a drop signal on the Qwidget of my choice, but my need is specific to above.

I am able to do this successfully on Windows. But it seems like MAC is not considering my application icon as a valid

drop site (both in finder and on dock icon)