Duplicating windows behaviour with GtkTreeView & selections, drag & drop

[Gorshkov <listsubscriptions oghma on ca>]

In windows, "normal" behavior for selections & drag and drop is as follows:

*click* ....... select 1st thingie
*shift-click* .... select the last of a group of thingies, and have all 
those in between marked as selected.

*press* *drag* *release* .... move thingies to wherever

However, normal GTK behavior when left to it's own devices is as follows:

*click* ..... select 1st thingie - same as windows
*shit-click* ..... select the last of a group of thingies, and have all 
those in between marked as selected - again, the same as windows.

*press* .... D'oh! My selections have now been unmarked, and the only 
thing selected is the one under the cursor when I pressed the mouse key


The problem is that the selection(s) are made on the button PRESS, 
whereas under windows the selection(s) are made on button RELEASE. So my 
problem is this: Since I'm developing an application under windows, how 
do I get my app to handle selections/drag & drop "properly", the way 
it's done under windows, WITHOUT having to intercept button 
press/release combinations and manually code the appropriate behavior?