Re: ReadDirectoryChangesW - Access Violation - Article 6845 - go-pugleaf

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Re: ReadDirectoryChangesW - Access Violation

#6845

From: Zoetjuh
Date: Wed, 06 Apr 2005 07:09

27 lines
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"Bob Gonder" <notbg@notmindspring.invalid> wrote in message 
news:l88651l95ujrrc182cfcfvtmgl7ns5rst5@4ax.com...
> Zoetjuh wrote:
>
>>Violation error; now I'm not sure what buffersize to use, but this one seems 
>>to
>>suffice:
>
> No, too small. Way too small.
>
>>    FILE_NOTIFY_INFORMATION *ChangesBuffer = new FILE_NOTIFY_INFORMATION();
>>    DWORD ChangesMaxBuffer = sizeof(FILE_NOTIFY_INFORMATION) + MAX_PATH;
>
> Should be MAX_PATH*2 because the path is WCHARs
> Also, ChangesBuffer is too small. It only has room for ONE char of the
> returned path!Should be more like
>
>    FILE_NOTIFY_INFORMATION *ChangesBuffer =
>
> (FILE_NOTIFY_INFORMATION*)GlobalAlloc(GMEM_FIXED,ChangesMaxBuffer);
>
>

Thanks. The Acces Violation is gone, however my filename now has a lot of 
questionmark at the end. It seems the FileNameLength is incorrect, or I'm not 
doing the right conversion?

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Subject: Re: ReadDirectoryChangesW - Access Violation
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