Re: CString performance - C / C++ / MFC Discussion Boards

ThatsAlok14-Jul-04 20:57

14-Jul-04 20:57

i have created sysutil for that,it will going to published on cp today so wait till tommorow

-----------------------------
"I Think It will Work"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

CreateNamedPipe permission question

Anonymous14-Jul-04 4:08

Anonymous

14-Jul-04 4:08

I have two apps which communicate with each other via pipes. When I logged in as admin, I was able to run it fine, but as a standard user, I could not run it. The CreateFile call to the named pipe would generate an ACCESS_DENIED error. I changed the security attributes on the CreateNamedPipe that I used on the server side. I did SetSecurityDescriptorDacl. This fixed my app's pipe connect problem. However, it created a new one. The messages on the pipe look like garbage. The messages looked fine before the security fix. Any ideas? Do I need to set the security attributes of CreateFile too???

how to validate access rights of a user on a folder??

rmmr14-Jul-04 3:43

rmmr

14-Jul-04 3:43

Hi there!!!
On my system, there is a folder which can be accessed by a specific user(e.g. auser) of my computer. Administrator group has full access rights on that folder too. The problem is I need to validate the access rights of "auser" on that folder through programming. but dont know the specific API to do that. following API can do it, but still not sure:

GetNamedSecurityInfo(...)
GetTokenInformation(...)

Using GetNamedSecurityInfo(...) API, I can get the DACL of that folder. But how can I determine which user has waht access rights on that folder????

Would appreciate any advice as how to go abt it or any code snippet.
Thanks in advance.

RM.

Re: how to validate access rights of a user on a folder??

vcplusplus14-Jul-04 4:13

vcplusplus

14-Jul-04 4:13

try using _access(...)

if (_access("\\\\myserver\\myfolder\\", 6) == 0)
{
   // Read write permission for this folder
}

0 Existence only
2 Write permission
4 Read permission
6 Read and write permission

Re: how to validate access rights of a user on a folder??

rmmr14-Jul-04 4:41

rmmr

14-Jul-04 4:41

Thanks for replying. but unfortunately it only validates a specific rights on a file or a directory, contrary to what I am looking for Frown | :(

If I can translate my problem in an statement, it would something like this:
"Check 'auser' has read rights on directory(myfolder)????"
where 'auser' is a local user on a computer.

RM.

CString performance

NMiceli14-Jul-04 3:42

NMiceli

14-Jul-04 3:42

i use CString to much i think, i've seen many people uses LPCSTR

am i losing much by using CString?

Re: CString performance

Maximilien14-Jul-04 4:08

Maximilien

14-Jul-04 4:08

I don't think there's a huge performance loss when using CString; internally, it must be similar to using LPCSTR ( char* )é

For day to day operation, just the simpler usage of CString ( or std::string ) makes it up for the programmer at least.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: CString performance

wb14-Jul-04 4:51

14-Jul-04 4:51

it depends on how you use it! Smile | :)

CString is realy OK, the only thing
you should do is, if you pass a CString
as a parameter, pass it as const CString&
and dont an a lot of small datachungs
to a CString in a loop

int n=0;
CString dummy;
while(n<10000) {
 dummy+=(char)((n%30)+30);
 ++n;
}

AfxSetAppName( )?

lucy14-Jul-04 3:33

lucy

14-Jul-04 3:33

I have an SDI application. The title bar text is:

FileName - AppName

My question is: how can I change AppName on the fly? I have a menu item to swtich between two options. I want the application title bar to reflect which option is currently selected. So I want the title bar text to be something as:

FileName - AppName option1
or
FileName - AppName option2

I searched MSDN, and found there is a function AfxGetAppName( ), but it is to get CWinApp.m_pszAppName. Is there a function to set the m_pszAppName?

Thank you very much for any hint.

Re: AfxSetAppName( )?

Wes Aday14-Jul-04 4:39

Wes Aday

14-Jul-04 4:39

Try SetWindowText()

Artificial intelligence is no match for natural
stupidity.

Re: AfxSetAppName( )?

lucy14-Jul-04 5:39

lucy

14-Jul-04 5:39

Get it. CMainFrame.SetWindowText().

Thanks a lot!

Re: AfxSetAppName( )?

Member 1382467115-Dec-22 7:37

Member 13824671

15-Dec-22 7:37

AfxGetModuleState()->m_lpszCurrentAppName = L"title"

Send At command

mark18214-Jul-04 3:32

mark182

14-Jul-04 3:32

hello,
is there anyone that can help me :

how to send at command to modem (dial-up modem) through serial communication?

i've tried with some serial communication program, but it can't work.

Re: Send At command

palbano14-Jul-04 5:36

palbano

14-Jul-04 5:36

mark182 wrote:
how to send at command to modem (dial-up modem) through serial communication?

So there are two major activities in your project.

1) Workiing with Serial Ports
2) Working with Modems

Which one do you want or need help with?
You might get more response to smaller more specific questions.

mark182 wrote:
but it can't work.

You must provide more specific information than that in order for someone to determine how to help.

"No matter where you go, there your are." - Buckaroo Banzai

-pete

Re: Send At command

mark18215-Jul-04 2:48

mark182

15-Jul-04 2:48

Ok, In my project now, i'm working with serial port.

i've serial chat programming, and i try to send at command to modem.
That's i mean "....it can't work".

Actually, my project is working with modem, and now i'm trying to send
at command, can anyone can help me?, Or maybe palbano, if you know,
why don't you help me.

I've tried with VCTERM from msdn, but i don't understand on it.Beside that i don't understand making a program with activex. So, i try with serial programming like chat program with serial because it can send character.

CFileDialog - customize

john john mackey14-Jul-04 3:30

john john mackey

14-Jul-04 3:30

Hi, I want to pre-configure the state of the a CFileDialog (dialog) I use. What I want is the view to be set to "view Large Icons" or thumbnails.

Also, in another question, can I use the "Search (results) dialog" like a CFileDialog. My use would be a file/folder browse dialog that shows all possible files that match a certain file extension (.BMP,.JPG,.ICO) all under a common root folder.

Thanks!
Regards,
Johnny

(Yes, at times CP server is slow, but the wealth of resource info and the number of users is understandable.)

Re: CFileDialog - customize

vcplusplus14-Jul-04 4:22

vcplusplus

14-Jul-04 4:22

This site might give you some ideas.

http://www.codeproject.com/dialog/xfiledialog.asp

Re: CFileDialog - customize

David Crow14-Jul-04 10:09

David Crow

14-Jul-04 10:09

john john mackey wrote:
What I want is the view to be set to "view Large Icons" or thumbnails.

Defaulting to large icons is easy enough using both CFileDialog and GetOpenFileName(). However, I've not been able to default to thumbnails using CFileDialog, only GetOpenFileName().

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

My application causing an assert in viewcore.cpp

Raghunandan S14-Jul-04 3:27

Raghunandan S

14-Jul-04 3:27

Hi All,
MY application is causing an assert in the line 249 of viewcore.cpp.This is a OnMouseActivate() function and the assertion is at

ASSERT(pParentFrame == pDesktopWnd || pDesktopWnd->IsChild(pParentFrame));

can someone tell me what might be the possible condition.This is a randomly occuring bug and i dont have any logs regarding this

Thanks in advance

Regards
Raghu

Re: My application causing an assert in viewcore.cpp

David Crow14-Jul-04 10:15

David Crow

14-Jul-04 10:15

Raghunandan S wrote:
can someone tell me what might be the possible condition.

Either the parent frame is the desktop or the parent frame is a direct descendent of the desktop. Put a breakpoint on that line to see which of the two conditions is evaluating to FALSE.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: My application causing an assert in viewcore.cpp

Jeffrey Walton14-Jul-04 12:39

Jeffrey Walton

14-Jul-04 12:39

Hi Raghunandan,

Did you subclass a view? It sounds like you are using a view where you should have a window. For example, CListCtrl is derived from CWnd but CListView is derived from CView.

Jeff

Re: My application causing an assert in viewcore.cpp

Raghunandan S14-Jul-04 15:33

Raghunandan S

14-Jul-04 15:33

Hi,
Mine is an SDI application where I do like this:
CSingleDocTemplate* pDocTemplate;
pDocTemplate = new CSingleDocTemplate(
IDR_MAINFRAME,
RUNTIME_CLASS(CConvertDoc),
RUNTIME_CLASS(CMainFrame),
RUNTIME_CLASS(CConvertView));
AddDocTemplate(pDocTemplate);

in my initinstance

CMainFrame is derived from CFrameWnd and CConvertView is derived from CEditView.

Is there any problme in this kind of creation?

Regards
Raghu

voice proplem

mvnevis14-Jul-04 3:26

mvnevis

14-Jul-04 3:26

hi,
i am creating voice chat project. It works in LAN very well,but it works in WAN(internet)echo proplem and the voice is not clear.how i reduce the problem .

in my project, the voice are not stored in file.it stored in char rray,then send to server.

plz give any idea and sample compression program.

Thank you.

To Add Help to an MFC

camcambala14-Jul-04 3:09

camcambala

14-Jul-04 3:09

when I made a dialog based project(MFC) ,I didn't add "Context Sensitive Help" to it. Now I want to add "Help".Is it possible ?

Re: To Add Help to an MFC

BlackDice14-Jul-04 8:07

BlackDice

14-Jul-04 8:07

I just asked the same question a few days ago. The best thing I was told was to create a new project, add help to it, then see what's different. Wink | ;)

If it's broken, I probably did it

bdiamond

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