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Article #3134

Re: OnDeviceChange Problem

#3134
From: Michel Leunen
Date: Tue, 17 Oct 2006 16:12
19 lines
1664 bytes
Uri wrote:
> I tried that, it's not working, every time when the function is
> call (when I connect or remove the USB device from the PC) the
> parameter 'm.WParam' stay 7 (m.WParam = 7) Why does it not chaning?

That's a DBT_DEVNODES_CHANGED. According to MSDN :
"The system broadcasts the DBT_DEVNODES_CHANGED device event when a 
device has been added to or removed from the system."
It seems there is no way to know if the device has been added or removed 
from the system.

Michel
-- 
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Michel Leunen
mailto: see my homepage.
C++Builder, BCC5.5.1 Web site:
http://www.leunen.com/
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Date: Tue, 17 Oct 2006 18:12:12 +0200
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