can an adjustment use step increment < 1?

[Jan Boehm <jan boehm ifp uni-stuttgart de>]

Hi,
I am trying to use an adjustment (and the SpinButton and VScale and so 
on) to use fractions, i.e. 0.5 or 0.1 as increments instead of 1.
To get started I compiled the example given in the GTK+ 2.0 tutorial 
chapter 9.5.
Looking at the code (around line 109)

    adj1 = gtk_adjustment_new (0.0, 0.0, 101.0, 0.1, 1.0, 1.0);

it suggest that a step_increment of 0.1 is used.
However when I run the program I can only increment in steps of 1.0.
I am using GTK+ for Win32 version 2.2.1 as provided on Tor's site.

Has anybody successfully used a adjustment with a step increment < 1?

Thank you,
Jan
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    _/_/_/ _/  _/        Jan Boehm  Dipl.-Inform. M.Sc.
   _/_/_/    _/   _/_/   Institut fuer Photogrammetrie
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