Mauro,
The TB_AUTOSIZE message is for toolbars, not the quick launch bars (they
are different cotnrols all together).
There is no message available to auto-size the bar. The best you could
do is try and calculate the size yourself, and then set the bar. You can do
this by making a call to the SHAppBarMessage API function through the
P/Invoke layer, passing the ABM_SETPOS message.
Check the documentation for the SHAppBarMessage function for the
messages you can send to the application bar (watch for line wrap):
http://whidbey.msdn.microsoft.com/l...shell/reference/functions/shappbarmessage.asp
Hope this helps.
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