Re: Unicode C++ Problem - C / C++ / MFC Discussion Boards

Re: A question on deleting entries in win registry

David Crow13-Apr-05 2:30

David Crow

13-Apr-05 2:30

It's going to be hard to show what you did wrong if you don't show us the code that is not working.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Re: A question on deleting entries in win registry

PrashantJ13-Apr-05 2:32

PrashantJ

13-Apr-05 2:32

I copied and pasted the same code that Alok listed above.

Also included the header file #include <atlbase.h> in the source code. Thats all I did.

Thanks

Re: A question on deleting entries in win registry

David Crow13-Apr-05 2:39

David Crow

13-Apr-05 2:39

Ok, but what about the code that you had before CRegKey was suggested? There is no reason why you should not be able to get that working.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Re: A question on deleting entries in win registry

PrashantJ13-Apr-05 3:22

PrashantJ

13-Apr-05 3:22

I had tried this earlier. But RegDeleteValue always returns 2 (file not found error)

long retVal = RegDeleteValue(HKEY_CURRENT_USER, "Software\\Company Name\\Product Name\\File-TT");

Thanks

Re: A question on deleting entries in win registry

Blake Miller13-Apr-05 6:37

Blake Miller

13-Apr-05 6:37

Maybe for this one you need to use:

HKEY MyKey;<br />
<br />
LONG RegOpenKey(<br />
  HKEY_CURRENT_USER, "Software\\Company Name\\Product Name,<br />
  &MyKey<br />
);<br />
<br />
RegDeleteKey( <br />
  MyKey, <br />
  "File-TT"<br />
);<br />
<br />
RegCloseKey(MyKey);

You delete registry values by opening the entire key, you delete registry keys by opening the parent key and then calling RegDeleteKey with the name of the child.

Unicode C++ Problem

nitinmahajan8013-Apr-05 1:21

nitinmahajan80

13-Apr-05 1:21

Hi All,

I want to write a simple C/C++ program which should be able to display All Unicode characters, that are present in character set of any Standard Unicode Font.

I am using the wchar_t data type to store the character constant but how can i pass the Unicode value for a literal like HINDI Aa (\u0905)
But it will always give the error literal constant extends limit

Can Anyone help me out

Thanks In Advance
Nitin Mahajan

Re: Unicode C++ Problem

ThatsAlok13-Apr-05 1:36

ThatsAlok

13-Apr-05 1:36

Could you post some code snippet,so we can undertsand you problem in better way!

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Alok Gupta
visit me at http://www.thisisalok.tk

"I ~~Think~~ Believe this Will Help"

Re: Unicode C++ Problem

nitinmahajan8013-Apr-05 18:57

nitinmahajan80

13-Apr-05 18:57

#include <conio.h>

#include <locale.h>
#include <iostream.h>
#include <stdlib.h>
#include <stdio.h>

int wmain( int argc, wchar_t *argv[ ], wchar_t *envp[ ] )
{
wchar_t wc = '\x0907';

cout<<wc;
getch();
}

now="" i="" am="" getting="" the="" error=""
ibcd.lib(wwincrt0.obj)="" :="" lnk2001:="" unresolved="" external="" symbol="" _wwinmain@16
and="" want="" to="" send="" this="" character="" <b="">wc to a notepad window for displaying the it there by pressing a button from my application. Is there any way you have for that?
I have tries the postmesage API but it doesn't work as:

PostMessage(HWND_BROADCAST,ch,WM_CHAR,0);

Thanks 4 Ur Reply

Re: Unicode C++ Problem

ThatsAlok13-Apr-05 19:15

ThatsAlok

13-Apr-05 19:15

nitinmahajan80 wrote:
int wmain( int argc, wchar_t *argv[ ], wchar_t *envp[ ] )

Isn't that Decalartion Right,WinMain Sig. is something like this

int WINAPI WinMain(HINSTANCE hInstance,
                   HINSTANCE hPrevInstance,
                   LPSTR      cmdLine,
                   int nShowCmd)

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Alok Gupta
visit me at http://www.thisisalok.tk

"I ~~Think~~ Believe this Will Help"

Re: Unicode C++ Problem

nitinmahajan8014-Apr-05 0:36

nitinmahajan80

14-Apr-05 0:36

No Mr Alok,

This is used only when we are making the MFC DLL but i am making the Win32 Application

And what about Postmessage that i am asking abot have u got any idea.

I am presently loking for WM_UNICHAR windows message to be send as parameter in Postmessage API which is not implemented for versions before windows XP

Re: Unicode C++ Problem

Michael Dunn13-Apr-05 2:04

Michael Dunn

13-Apr-05 2:04

VC doesn't support the \u syntax, but this should work: L'\x905'

--Mike--
Visual C++ MVP Cool | :cool:

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Strange things are afoot at the U+004B U+20DD

Re: Unicode C++ Problem

nitinmahajan8014-Apr-05 0:44

nitinmahajan80

14-Apr-05 0:44

I have done that & so far i am successful in displaying string in the AfxMessage dialog box. But my problem is that I want to write the data into the file or to the notepad.
For this i am using the concept of :
i}
wmain()
{
wchar_t tch = L'\x311b';
TCHAR *tstring;

...

_stprintf(tstring,_T("Tchar Character : %su"),(LPCTSTR)tch);
...
}

2}
PostMessage , SendMessage API and trying to pass WM_UNICHAR message to that but till now not succesful

How to configure Baudrate 76800

Adi Narayana Vemuru13-Apr-05 0:45

Adi Narayana Vemuru

13-Apr-05 0:45

Hello guys,

Requirement:My Application should work with any baudrate starting from 01- 256k ideally and i need to implement for 76800 baud with out fail.

Constraint:We are able configure the bauds from 0 - 9600 (all the numbers), 10400,14400,19200,38400,56000,57600,etc..... when i give different baudrate from the above list, the error comes is Invalid Parameter.

Question: Is there any work around to overcome this constraint.It's really urgent.

can someone through light on this.????

Thanks in advance.
Adi

Re: How to configure Baudrate 76800

Roger Allen13-Apr-05 5:40

Roger Allen

13-Apr-05 5:40

I take it your tryig to set the baud rate through a DCB structure and the BaudRate member.

Ar eyou setting it like this:

dcb.BaudRate = 76800;

The other issue could be that some of the othere DCB parameters are not filled out correctly.

If you vote me down, my score will only get lower

Re: How to configure Baudrate 76800

Adi Narayana Vemuru13-Apr-05 18:13

Adi Narayana Vemuru

13-Apr-05 18:13

Hello Roger,

Thanks for your response. Yes i'm setting the baudrate and other configuration parameters of serial port using DCB structure only with SetCommState() Function.

so when i use baudrates like 76800, the return value of SetCommState() function is INVALID_PARAMETER. So i want to know if anyone has done something to achieve this kinda baudrates configured with serial port for their requirements.

Thanks
Adi

Re: How to configure Baudrate 76800

Trollslayer13-Apr-05 23:40

Trollslayer

13-Apr-05 23:40

Some systems (drivers) have a list of accepted baud rates, I'm not sure if that could be your problem. Certainly on standard PC serial ports the hardware only allows a limited selection of baud rates and the driver will reflect this.

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

Re: How to configure Baudrate 76800

Adi Narayana Vemuru13-Apr-05 23:56

Adi Narayana Vemuru

13-Apr-05 23:56

yeah it's true there are limited which driver supports which is documented in the header ntddser.h file. The hardware support depends on the highest speed of the hardware (till 1990s the speed was 115.2 k, after 2000's it's become more than that like 230K, 430K etc.....).

The baudrates that are supported by the drivers are derived from the devisors of the highest speed.(Ex:115.2k - devisor 1,57600-div2,38400-div 3 ..etc).

So i'm looking for what can be done to achieve the baudrates (such as 76800) which are exact divisors of the highest speed(incase of 115.2k) also.

Please let me know if you know any leads on the same.

Thanks for your info sharing
Adi

Block Files or Give permiss to files

densitet13-Apr-05 0:45

densitet

13-Apr-05 0:45

Hello, I have a serious problem because i want to do a application that sends to other application the permisions that this application will have. But my problem is how can i do it and when i send the permission how can i lock the files to protect my computer.

Thank you very much

Re: Block Files or Give permiss to files

Cedric Moonen13-Apr-05 1:16

Cedric Moonen

13-Apr-05 1:16

densitet wrote:
i want to do a application that sends to other application the permisions that this application will have

Uhhh.. what does that mean D'Oh! | :doh:

??? What do you mean by permissions ?? And which other applications ??

densitet wrote:
when i send the permission how can i lock the files

Which files ???

Maybe I'm completely missing the point but I really don't understand what you want to do. Try maybe reformating your question a little bit clearer.

Re: Block Files or Give permiss to files

densitet13-Apr-05 3:57

densitet

13-Apr-05 3:57

Ok, thank u for answer. I will try explain better. We can say that I have a client and a server running in the same machine where the client send information to the server to authentication, so when the server authentice this information, it should be to know to which files has permiss, for example if i am "densitet" and im authenticated the server should be to know that i have only permisses to pdf files. But i dont know how can i store the information of the different users in the server (lists, bbdd, text files...), because i want that for example like in the windows XP i want to have users with all rights, users that only access a doc files,.... And when the server know that i have permissions to doc files for exmaple i want to block the rest of the files.
Thank you very much.

Re: Block Files or Give permiss to files

Cedric Moonen13-Apr-05 4:16

Cedric Moonen

13-Apr-05 4:16

Ok, this is a little bit clearer. But it's not really my field but I will try to help you. But at least, this is also clearer for the other people here Wink | ;)

.

In fact, you just want to know how you will store the permissions ? Why don't you store that in simple ini files (text). Something like that:

[Densitet]<br />
Allowed=doc,txt,pdf<br />
<br />
[...].br />
Allowed=txt<br />
<br />
... and so on

Then to read the file you can use this[^] if you use the MFC.

I don't know if that answer your question ? And also, I don't know if it's the good solution....

Re: Block Files or Give permiss to files

densitet14-Apr-05 1:40

densitet

14-Apr-05 1:40

Ok, thank you very much, Now i know how can i store the information and handle the extension of the files with the different users. But One duda more for example is if I want that Densitet only have access to the folder Program files or access to 30 files with different extensions in different folders. And when u have controlled this situation, for example if the user create a new file, how can i send the information of the file that the user is creating to the server to actuallize the bbdd.

Thank you very much for the help, I hope that u understand this kind of problem i don't know if i have explained good, i hope so.

/Densitet

Re: Block Files or Give permiss to files

Cedric Moonen14-Apr-05 1:46

Cedric Moonen

14-Apr-05 1:46

densitet wrote:
One duda more for example is if I want that Densitet only have access to the folder Program files or access to 30 files with different extensions in different folders.

Err.. I don't know. But what is your program doing exactly ?? What do you mean by 'people have access to file' ?? What are you implementing ? A kind of windows explorer or what ?
Then it is just up to your program to decide what to do with specific users...

Re: Block Files or Give permiss to files

densitet14-Apr-05 3:01

densitet

14-Apr-05 3:01

My program like i told u, has a client and a server in the same machine, but when i entry in the windows XP with the users i want create like different permissions to the users like WXP has Administrator, Invite, .... I want to do that each user has different permissions, for example Densitet only permiss to 30 names of files, Other user permission to only 2 files, something like that, Can i store this information like u say me with a ini file and in allowed write the name of files?, and when the user create a new files how i can send this file to the server to actualize the ini file?. And when the server send the permission to the client, the client will permit to the user access to this files and not to the other files. I want to know how can i handle this.
I hope that my explication will be better than before.

/Densitet

access denied problem

montu337713-Apr-05 0:04

montu3377

13-Apr-05 0:04

Hi,

I am facing one problem.I am reading .res file and writing contents to xml file.Here in one function i am writing one for-loop for reading areas of image upto area is null,but now i want to add another element into xml file.
so i am adding one another for- loop but when my 1st loop completes and second for-loop starts then immediatly i got error message that unhandled exception in res2xml.exe : 0*C0000005 : ACCESS violation.
i had checked this exe file and i had given all rights to it.
Now can anybody tell me that what is the main problem?

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