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Article #6848

Re: ReadDirectoryChangesW - Access Violation

#6848
From: Zoetjuh
Date: Wed, 06 Apr 2005 20:12
33 lines
2123 bytes
"Zoetjuh" <peter@i-hate-spam.zoetjuh.demon.nl> wrote in message 
news:42538b29@newsgroups.borland.com...
>
> "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?
>

Corrected by halving the no. of bytes from FileNameLength 
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From: "Zoetjuh" <peter@i-hate-spam.zoetjuh.demon.nl>
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Subject: Re: ReadDirectoryChangesW - Access Violation
Date: Wed, 6 Apr 2005 22:12:19 +0200
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