Re: OnDeviceChange Problem

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#3133

From: Bob Gonder
Date: Tue, 17 Oct 2006 16:08

25 lines
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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?

Look in DBT.H
7 is DBT_DEVNODES_CHANGED which you should be ignoring as Michel
pointed out.

>>switch(m.WParam)
>>{
>>   case DBT_DEVICEARRIVAL:
>>	//a new device has been inserted
>>   break;
>>   case DBT_DEVICEREMOVECOMPLETE:
>>	//a device has been removed
>>   break;
>>}
>>
>>Michel

Just a thought:
It could be that the mystery device you are unplugging isn't supposed
to report device arrival/removed. You might ask the manufacturer.

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From: Bob Gonder <notbg@notmindspring.invalid>
Newsgroups: borland.public.cppbuilder.nativeapi
Subject: Re: OnDeviceChange Problem
Date: Tue, 17 Oct 2006 09:08:55 -0700
Organization: MindSpring Enterprises, Inc.
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