Re: OnDeviceChange Problem

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#2955

From: Uri
Date: Thu, 19 Oct 2006 09:14

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I work with Builder 4.0

Now I have all the following includes:

#include <windows.h>
#include <dbt.h>               // for DEV_BROADCAST_DEVICEINTERFACE
#include <initguid.h>          // defines the guid macros
#include <devguid.h>?

but I still get the Error message - 

Undefined symbol 'GUID_DEVCLASS_USB'

on the line - 

NotificationFilter.dbcc_classguid  = GUID_DEVCLASS_USB;


Do you have any Idea why ?



Michel Leunen <nospam@noreply.be> wrote:
>Uri wrote:
>> Hi,
>> 
>> I have found the file 'devguid.h' on my PC, in this file I find
>> the following Guids,
>
>It seems that there are a lot more GUIDs in my version of the file than 
>yours. Weird. Which version of BCB are you using?
>
>> which one is the Guid of my device? (the
>> device is just a small Electronic Card that someone has made for
>> us) 
>
>I don't know. Ask the manufacturer.
>
>Michel

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