WM_DEVICECHANGE and usb mass storage (OT)
- From: "Mike P" <mikep@xxxxxxxxxxxxxxxxxxx>
- Date: Fri, 8 Jul 2005 11:32:02 -0700
Though is slightly off topic, my googling has turned up some familiar names
from here. So here goes -- I have a reasonably simple task. I am trying to
monitor a usb memory stick (usb mass storage) for a WM_DEVICECHANGE message
with a DBT_DEVICEQUERYREMOVE event. The problem that I'm having is that when
I do a 'Safely Remove Hardware' icon, I don't see any WM_DEVICECHANGE
messages if there are files open on the stick. All I see is a message
indicating that the device can't be stopped.
If there are no files open, I can see the DTB_DEVICEREMOVECOMPLETE after the
device is ready to remove.
I have tried all sorts of registering for notifications but nothing that
I've done will get me the DBT_DEVICEQUERYREMOVE event. Suggestions
welcomed --
TIA
Mike P
.
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