Re: How to use ACL to change the access of usb device - C / C++ / MFC Discussion Boards

jon ray15-Jul-09 20:50

15-Jul-09 20:50

is it possible to prevent the user from left clicking on USB drive icon but allow to right clicking?

i would appreciate if some one post an example for it

Re: Help in writing a program?

David Crow16-Jul-09 2:52

David Crow

16-Jul-09 2:52

jon ray wrote:
is it possible to prevent the user from left clicking on USB drive icon...

Within Windows Explorer?

"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: Help in writing a program?

jon ray24-Jul-09 18:45

jon ray

24-Jul-09 18:45

sorry for the late reply i was very busy until yesterday and yes within windows explorer

Re: Help in writing a program?

David Crow27-Jul-09 3:19

David Crow

27-Jul-09 3:19

See if this helps. Also see here.

How to use ACL to change the access of usb device

Anil Veeraghattapu 415-Jul-09 20:04

Anil Veeraghattapu 4

15-Jul-09 20:04

Hi
I am using VC++
and i want to change the access of usb device form read and write to read only.
i have understood that ACL can do that.
i would like to know more information about how do we use
ACL in vc++ to change the access of usb device

thanks
Anil Veeraghattapu.

Re: How to use ACL to change the access of usb device

Davitor15-Jul-09 22:09

Davitor

15-Jul-09 22:09

you can change access of usb device through registry.
Registry path
[code]
LOCAL_MACHINE, "SYSTEM\\CurrentControlSet\\Control\\StorageDevicePolicies"
[/code]
just you change the values
[code]
"0" to "1"
WriteProtect="1"
[/code]

Re: How to use ACL to change the access of usb device

Anil Veeraghattapu 415-Jul-09 23:53

Anil Veeraghattapu 4

15-Jul-09 23:53

I dont want to change it from the registry
i want to do it from the vc++ code
by using win32 api
i have understood that for usb device driver objects ACL if we added the ACE, then we can change it.

but i would like to know which api should i use to achieve this

Re: How to use ACL to change the access of usb device

David Crow16-Jul-09 2:54

David Crow

16-Jul-09 2:54

Anil709 wrote:
I dont want to change it from the registry
i want to do it from the vc++ code

Are you of the thinking that code cannot be used to manipulate the registry?

Re: How to use ACL to change the access of usb device

Anil Veeraghattapu 416-Jul-09 20:17

Anil Veeraghattapu 4

16-Jul-09 20:17

i dont want to do anything with the registry
all i want to do is to use win 32 api
and to get the handle of the device and apply acl to it
if you know how to apply ACL on the usb device please help me

thanks
Anil Veeraghattapu.

Re: How to use ACL to change the access of usb device

Randor 16-Jul-09 21:43

Randor

16-Jul-09 21:43

The following links should help:

Modifying the ACLs of an Object in C++[^]

Creating a DACL[^]

SetNamedSecurityInfo Function[^]

SetSecurityInfo Function[^]

Best Wishes,
-David Delaune

Language Installed in OS

kiranin15-Jul-09 19:50

kiranin

15-Jul-09 19:50

How to find the language installed or Language package exists or language in OS will support or not?
I failed to use GetUILanguage and EnumUILangauges API's. Any suggestions?

Re: Language Installed in OS

«_Superman_»15-Jul-09 20:10

«_Superman_»

15-Jul-09 20:10

What problems did you face with using EnumUILanguages.

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

Re: Language Installed in OS

kiranin15-Jul-09 20:30

kiranin

15-Jul-09 20:30

Actually i didn't understand how to use the API, and also i didn't find any sample for it Smile | :)

. If you can help me on how to use this API it will be very useful for myself.

Re: Language Installed in OS

«_Superman_»15-Jul-09 20:37

«_Superman_»

15-Jul-09 20:37

Here goes -

BOOL CALLBACK EnumUILanguagesProc(
  LPTSTR lpUILanguageString, 
  LONG_PTR lParam
)
{
   MessageBox(0, lpUILanguageString, 0, 0);
   return TRUE;
}

int main()
{
   EnumUILanguages(EnumUILanguagesProc, MUI_LANGUAGE_NAME, 0);
}

If you want the language id instead of the language name, replace MUI_LANGUAGE_NAME with MUI_LANGUAGE_ID.

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

Re: Language Installed in OS

Randor 15-Jul-09 20:45

Randor

15-Jul-09 20:45

To check if the operating system supports the language I believe that you can just call the IsValidLanguageGroup Function[^]

Such as:

BOOL bSupported = IsValidLanguageGroup(LGRPID_INDIC,LGRPID_SUPPORTED);
BOOL bInstalled = IsValidLanguageGroup(LGRPID_INDIC,LGRPID_INSTALLED);

Best Wishes.
-David Delaune

Re: Language Installed in OS

kiranin15-Jul-09 21:39

kiranin

15-Jul-09 21:39

IsValidLanguageGroup(LGRPID_SIMPLIFIED_CHINESE | LGRPID_TRADITIONAL_CHINESE, LGRPID_INSTALLED);

is returning false when i tried in Windows XP Chinese, but it is returning true in English OS where East Asian language pack installed

Re: Language Installed in OS

Randor 15-Jul-09 21:55

Randor

15-Jul-09 21:55

kiranin wrote:
IsValidLanguageGroup(LGRPID_SIMPLIFIED_CHINESE | LGRPID_TRADITIONAL_CHINESE, LGRPID_INSTALLED);
is returning false when i tried in Windows XP Chinese, but it is returning true in English OS where East Asian language pack installed

#define LGRPID_TRADITIONAL_CHINESE   0x0009   // Traditional Chinese
#define LGRPID_SIMPLIFIED_CHINESE    0x000a   // Simplified Chinese
#define LGRPID_THAI                  0x000b   // Thai

0x000a | 0x0009 == 0x0B

You just confirmed that the LGRPID_THAI language is not installed on the Windows XP Chinese computer.

Change your code to:

BOOL bSimpleInstalled = IsValidLanguageGroup(LGRPID_SIMPLIFIED_CHINESE, LGRPID_INSTALLED);
BOOL bTradInstalled = IsValidLanguageGroup(LGRPID_TRADITIONAL_CHINESE, LGRPID_INSTALLED);

Best Wishes,
-David Delaune

Re: Language Installed in OS

kiranin15-Jul-09 22:39

kiranin

15-Jul-09 22:39

Thanks David,
And one more question is there a way to find the Language for Non Unicode programs which can be set through Regional and Language options?

Re: Language Installed in OS

Randor 15-Jul-09 22:58

Randor

15-Jul-09 22:58

I believe the GetSystemDefaultLangID Function[^] will return the language for non-Unicode programs.

Best Wishes,
-David Delaune

Application hang while command line compilation of VC6 COM dlls

Tsr Murthy15-Jul-09 19:44

Tsr Murthy

15-Jul-09 19:44

Hi All,

I am facing a serious issue while command line compilation of VC6 COM dlls.

My application will compile several dlls one by one using MSDEV.exe. After compiling some dlls, application will hang on due to indefinite waiting in Registration process of compilation. It will not specific to one particular dll, some times same dll will compile another time it will struck.

It is very much killing me, what might be reason?

If any one have any idea what may be the issue, Please share with me.

Thanks in advance.

Kind Regards,
Sreeram

T.sreeram Murthy

CreateWindowEx causes application crash.

birajendu15-Jul-09 19:07

birajendu

15-Jul-09 19:07

Hi, I am facing a crash while calling the function CreateWindowEx ,

Here is the code piece i am using.

WNDCLASSEX WndClassEx;

memset( &WndClassEx, 0,

sizeof(WNDCLASSEX) );

WndClassEx.lpfnWndProc = AVThreadMessageProcedure;

WndClassEx.hInstance = (HINSTANCE)g_hModule;

WndClassEx.lpszClassName = AVTHREAD_WINDOW_CLASS;

WndClassEx.hIcon = hIcon;

WndClassEx.hIconSm = hIconSmall;

WndClassEx.cbSize =

sizeof(WndClassEx);

CreateWindowEx( 0, AVTHREAD_WINDOW_CLASS, L

"", 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, (HINSTANCE)g_hModule,(LPVOID)this );

Here I am passing the pointer of the calling class in last argument. Application is not crashing always but some time it crashed at this point.

Can you please give some idea about what wrong i am doing here.

Thanks in advance.

Birajendu
SonicWALL
Bangalore
India

Re: CreateWindowEx causes application crash.

Naveen15-Jul-09 19:17

Naveen

15-Jul-09 19:17

Where is the RegisterClassEx() called? Confused | :confused: