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Writefile() fun fails in OS drive of vista.

C++myLife25-Jun-09 20:02

25-Jun-09 20:02

Hi All,

I am stucked into a problem of writing into C: drive(OS)in vista. I need to edit something in the metadata of a file. Well I can do this with other volumes but not in C: . Please guide me how to overcome this problem? Frown | :(

Re: Writefile() fun fails in OS drive of vista.

norish25-Jun-09 20:13

norish

25-Jun-09 20:13

Did you check the return code of GetLastError()?

Re: Writefile() fun fails in OS drive of vista.

«_Superman_»25-Jun-09 20:26

«_Superman_»

25-Jun-09 20:26

Are you doing it programaticaly.
If so your program will need elevated privileges.

«_Superman_»
I love work. It gives me something to do between weekends.

Re: Writefile() fun fails in OS drive of vista.

C++myLife25-Jun-09 20:57

C++myLife

25-Jun-09 20:57

yA i DID EVERY THING.

eRROR CODE 5 : aCCESS IS DENIED.
And the code I am running with admin priviledge.
This problem is only with the OS drive not with other partitions.

Re: Writefile() fun fails in OS drive of vista.

KarstenK25-Jun-09 22:10

KarstenK

25-Jun-09 22:10

i guess you exe hasnt the rights to write in such location. Do writing in a user directory. ->GetFolderPath()

Press F1 for help or google it.
Greetings from Germany

Re: Writefile() fun fails in OS drive of vista.

Michael Dunn25-Jun-09 22:49

Michael Dunn

25-Jun-09 22:49

Where exactly is the file you're trying to write to? Do you have privileges to write to the file?

Re: Writefile() fun fails in OS drive of vista.

C++myLife26-Jun-09 0:25

C++myLife

26-Jun-09 0:25

If you understand the metadata area of a file($MFT area)of a particular file , that is the location where I have to modify some values of a OS drive. But windows is not giving me permission to write at low level.

how to save image from webBrowser Control

voo doo1225-Jun-09 19:24

voo doo12

25-Jun-09 19:24

Hi every body
is there any way to save image form webBrowser control with out reloading it?

Convert Byte[64] to CSTRIng

p_196025-Jun-09 19:12

p_1960

25-Jun-09 19:12

Hi,
Please have a look
std::vector<cstring> Names;
ENUMLOGFONTEX *lpelfe;
Names.push_back(lpelfe->elfFullName);

the above lines gives an error like....
error C2440: 'initializing' : cannot convert from 'BYTE [64]' to 'ATL::CStringT<BaseType,StringTraits>'with[BaseType=char, StringTraits=StrTraitMFC_DLL<char>] ]

and please try to help regarding the same...

Re: Convert Byte[64] to CSTRIng

norish25-Jun-09 20:21

norish

25-Jun-09 20:21

What type of data do you want to push to std::vector?
If you want CString, try

std::vector<CString*> Names;
Names.push_back(new CString(lpelfe->elfFullName));

or you do with BYTE[], try

std::vector<BYTE*> Names;
BYTE* aName = new BYTE[sizeof(lpelfe->elfFullName)];
memcpy(aName, lpelfe->elfFullName, sizeof(lpelfe->elfFullName);
Names.push_back(aName);

Do not forget delete elements after you dont need vector both above.

Re: Convert Byte[64] to CSTRIng

norish25-Jun-09 20:25

norish

25-Jun-09 20:25

disapeared template defs. D'Oh! | :doh:

first one is

std::vector<CString*> Names;

second one is

std::vector<BYTE*> Names;

Re: Convert Byte[64] to CSTRIng

Pavan_Putra25-Jun-09 20:37

Pavan_Putra

25-Jun-09 20:37

I think , first Option should work.
Bcoz while creating CString from Byte , you should say new() to it..

It's not enough to be the best, when you have capability to be great...

Re: Convert Byte[64] to CSTRIng

«_Superman_»25-Jun-09 20:24

«_Superman_»

25-Jun-09 20:24

Your vector declaration cannot be seen in your posting.
Is it declared std::vector<CString>?

«_Superman_»
I love work. It gives me something to do between weekends.

Re: Convert Byte[64] to CSTRIng

p_196025-Jun-09 20:58

p_1960

25-Jun-09 20:58

ya it is declared..

Re: Convert Byte[64] to CSTRIng

«_Superman_»25-Jun-09 21:02

«_Superman_»

25-Jun-09 21:02

Try a two step approach.

std::vector<CString> Names;
ENUMLOGFONTEX *lpelfe;
CString str = lpelfe->elfFullName;
Names.push_back(str);

«_Superman_»
I love work. It gives me something to do between weekends.

Re: Convert Byte[64] to CSTRIng

Rajesh R Subramanian25-Jun-09 21:10

Rajesh R Subramanian

25-Jun-09 21:10

Can't you just use CString if you are already using MFC? Why do you have to use the std containers?!

It is a crappy thing, but it's life -^ Carlo Pallini

Getting File Data without opening the File

Bram van Kampen25-Jun-09 14:59

Bram van Kampen

25-Jun-09 14:59

How do I get Time Info on a remote network file of the Last Write on a File without actually opening the file. I have an App that needs to know when to re-load. It Opens the File every three minutes to check the last Write time,to determine if it's own version is stale. That traffic alone causes problems. Windows Explorer seems to have a way of getting this info in that way.

regards,

Smile | :)

Bram van Kampen

Re: Getting File Data without opening the File

Stuart Dootson25-Jun-09 15:07

Stuart Dootson

25-Jun-09 15:07

Does stat[^] open the file?

Or to quote this page[^]

You can also retrieve file times using the FindFirstFile and FindNextFile functions. These functions copy the file times to FILETIME structures in a WIN32_FIND_DATA structure

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Getting File Data without opening the File

Bram van Kampen25-Jun-09 15:13

Bram van Kampen

25-Jun-09 15:13

By God, You're Quick (less than 1 Minite since Posting the Question).
Rose | [Rose]

Going to try those tomorrow, and will let you know.

Thanks,

Bram.
Smile | :)

Bram van Kampen

Re: Getting File Data without opening the File

Michael Dunn25-Jun-09 17:00

Michael Dunn

25-Jun-09 17:00

That still isn't going to solve the problem of excessive network traffic. To actually get notifications (instead of constantly polling), check out FindFirstChangeNotification and ReadDirectoryChangesW.

--Mike--

Re: Getting File Data without opening the File

Stuart Dootson25-Jun-09 21:49

Stuart Dootson

25-Jun-09 21:49

Do those work for network drives? I am aware of them, but thought they only worked for local drives, or only worked for some network drives or something. Documentation doesn't say anything, so it's probably just a bit of dust in my brain masquerading as a memory.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Getting File Data without opening the File

David Crow26-Jun-09 5:16

David Crow

26-Jun-09 5:16

Stuart Dootson wrote:
Documentation doesn't say anything...

It's indirect, but MSDN article Q188321 makes reference to a remote computer.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Re: Getting File Data without opening the File

Rozis26-Jun-09 10:54

Rozis

26-Jun-09 10:54

It works on a networkdrive, i use it every day..

Is it possible to create a Bad sectors on hard disks?

lek25825-Jun-09 14:20

lek258

25-Jun-09 14:20

I want to Create a logical(not physical)Bad sectors on hard disks!

Is it possible?

If possible what i should know?

----------------------------------------------
I think
A fabricated ECC could be a solution

Originally ECC is made by automatically...
I cannot get a specific answer to insert ECC artificially.

Let`s consider it together...

Thanks Advance.

Re: Is it possible to create a Bad sectors on hard disks?

Stuart Dootson25-Jun-09 15:03

Stuart Dootson

25-Jun-09 15:03

Do you think you'll get different answers this time[^]?

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

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