Gtk tool-bar running icon under MS-Windows

[John Woodsman <jonnywoodman1 gmail com>]

When running a Gtk program under MS-Windows, there is a little icon that 

appears in the tool-tray bar at the bottom of the screen - one for each program

that is running.

Major applications like Word or Chrome have their own unique logos. 

But the icon for all my Gtk programs just shows the Gtk logo.  

I would rather display an icon unique to each of my programs. 

As it is, the icon is really just showing the graphics lib my program used.

I have been stumbling for an answer to this question in the Gtk manual, as

well as web searches, but have not come close to finding any discussion

that relates to this actual topic.  So any help in how to phrase this question 

would be appreciated.  I keep finding unrelated information, such as how

to make shortcut icons, since most websites are aimed at helping regular

users, more than developers.

Any ideas ?

Thanks!