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Hi,
I have implemented a service which will create and restore registry back ups.
Service runs under local system account.
I am able to take backup and restore in admin mode using the service.
But in Guest user mode I m unable to resore the Registry back up.
Any one can help me out in this.
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hm.. i faced a similar problem last week.
The problem is that a windows service runs in a LOCAL SYSTEM account and not in the account in which the user is currently logged in. Hence, if you try to take backups under registry key HKCR then the registry back up would fail.
What you have to do under this condition is write a code something like this:
<br />
HKEY hKey; <br />
long error;<br />
<br />
HANDLE hToken = NULL;<br />
BOOL bEnablePrivilege = TRUE;<br />
<br />
if(GetExplorerToken(hToken))
{<br />
if(hToken != NULL)<br />
{<br />
ImpersonateLoggedOnUser(hToken);<br />
<br />
error = RegOpenKeyEx(HKEY_CURRENT_USER,strRegPath,0,KEY_ALL_ACCESS,&hKey);<br />
<br />
RevertToSelf();<br />
}<br />
}<br />
Now, you can use the hKey obtained to open the required registry key under HKCR and take the back up!!
Cheers
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Hey frnds how multithreading is achieved!
i read 2-3 articles on it..but find those were difficult...
Can u please give me any reference where Multithreading is explained from basic...
Thanks;P;P
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In this function i am trying to disable the dchp in the adapter register key.
Also i am notify the NICs driver that the settings have changed.
bool CTcpIpPropertiesChangerApp::DisableDchp()
{
char szValue[MAX_GUID_STRING_LEN];
CString str,str2;
DWORD pdw=99;
CRegKey key,key2;
for(int flag=1;flag<=100;flag++)
{
str.Format("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards\\%d",flag);
if(key.Open(HKEY_LOCAL_MACHINE,str,KEY_READ|KEY_WRITE)==ERROR_SUCCESS)
{
key.QueryValue(szValue,"ServiceName",&pdw);
key.Close();
str.Format("SYSTEM\\CurrentControlSet\\Services\\TcpIp\\Parameters\\Interfaces\\%s",szValue);
key.Open(HKEY_LOCAL_MACHINE,str,KEY_WRITE);
key.Open(HKEY_LOCAL_MACHINE,str,KEY_WRITE);
DWORD keyy=0;
::RegSetValueEx(key.m_hKey,"EnableDHCP",0,REG_DWORD,(PBYTE) &keyy,sizeof(PDWORD));
key.Close();
HDEVINFO hDevInfo = SetupDiGetClassDev (NULL,NULL,NULL,DIGCF_ALLCLASSES);
if( INVALID_HANDLE_VALUE == hDevInfo )
{
AfxMessageBox("Error :SetupDiGetClassDevs()");
return FALSE;
}
//An SP_PROPCHANGE_PARAMS structure corresponds to a DIF_PROPERTYCHANGE installation request.
SP_PROPCHANGE_PARAMS spPropChangeParams;
spPropChangeParams.ClassInstallHeader.cbSize = sizeof(SP_CLASSINSTALL_HEADER);
spPropChangeParams.ClassInstallHeader.InstallFunction = DIF_PROPERTYCHANGE;
spPropChangeParams.Scope = DICS_FLAG_GLOBAL;
spPropChangeParams.StateChange = DICS_DISABLE;
spPropChangeParams.HwProfile = 0;
//An SP_DEVINFO_DATA structure defines a device instance that is a member of a device information set.
SP_DEVINFO_DATA spDevInfoData;
spDevInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
for (int k=0;SetupDiEnumDeviceInfo(hDevInfo,k,&spDevInfoData);k++)
{
unsigned char GuidString[MAX_GUID_STRING_LEN];
GuidString[MAX_GUID_STRING_LEN - 2] = _T('\0');
for(int l=0;l<max_guid_string_len;l++)
guidstring[l]="szValue[l];
" guid="" ret;
="" uuidfromstring(&guidstring[1],="" &ret);
="" if(spdevinfodata.classguid="=" ret="" )
="" {
="" setupdisetclassinstallparams="" sets="" or="" clears="" class="" install="" parameters="" for="" a="" device="" information="" set="" particular="" element.=""
="" if="" (="" setupdisetclassinstallparams(hdevinfo,="" &spdevinfodata,="" (sp_classinstall_header="" *)&sppropchangeparams,="" sizeof(sppropchangeparams))="=" false)="" setupdidestroydeviceinfolist="" (hdevinfo);
="" return="" false;="" }
="" setupdicallclassinstaller="" calls="" the="" appropriate="" installer,="" and="" any="" registered="" co-installers,="" with="" specified="" installation="" request="" (dif="" code).
="" (setupdicallclassinstaller(dif_propertychange,="" hdevinfo,="" &spdevinfodata)="=FALSE)" }
="" }="" }
}<="" code="">
For this i am trying to create a GUID inside the second for loop where in i get "{CCCCCCCC-CCCC-CCCC-CCCC-CCCCCCCCCCCC}" as 'ret' value instead of {A89377EA-D4ED-4A03-A303-A37F-4A9DE785E1A9} which is the '&GuidString[1]' value.
I think i need to typecast correctly.
Kindly help!
Priya Sundar
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use
GUID *ret;
ret = new GUID;
instead of
GUID ret;
after that delete ret
-Sachin
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hi sachin,
Thanks for replying.
But that didnt work. Now the 'ret' just gets created with the default value 'CDCDCDCD-CDCD-CDCD-CDCDCDCDCDCD}' and the funtion UuidFromString() produces no effect on it.
any other idea??
Priya Sundar
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Priya_Sundar wrote: GUID ret;
UuidFromString(&GuidString[1], &ret);
GUID ret = { 0 };
UuidFromString(GuidString, &ret);
Nibu thomas
MVP For VC++
Code must be written to be read, not by the compiler, but by another human being.
Programming Blog: http:\\nibuthomas.wordpress.com
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Hi,
That didnt work.
now 'ret' is created with default val "{00000000-0000-0000-0000-000000000000}" and the function UuidFromString() causes no effect..
Thankyou for your sugesstion!
Any more ideas??
Priya Sundar
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Priya_Sundar wrote: UuidFromString
What does the return value from UuidFromString say. Refer MSDN for more information. Check given GUID string.
Nibu thomas
MVP For VC++
Code must be written to be read, not by the compiler, but by another human being.
Programming Blog: http:\\nibuthomas.wordpress.com
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MSDN:
This is the syntax of the function UuidFromString() for the version vc++6.0
RPC_STATUS RPC_ENTRY UuidFromString
(
unsigned char *StringUuid,
UUID *Uuid
);
New 2005 version:
RPC_STATUS RPC_ENTRY UuidFromString
(
unsigned char __RPC_FAR* StringUuid,
UUID __RPC_FAR* Uuid
);
I am using vc++6.0 with PSDK and i guess __RPC_FAR wont be the cause of the problem.
Further, i have modified it as,
unsigned char *GuidString;
GuidString = (unsigned char *)szValue;
//szValue being declared as "char szValue[MAX_GUID_STRING_LEN];" and having a val "{A89377EA-D4ED-4A03-A37F-4A9DE785E1A9}"
GUID ret = { 0 };
UuidFromString(GuidString,&ret);
now UuidFromString returns RPC_S_INVALID_STRING_UUID stating that the string UUID is invalid.
Priya Sundar
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Priya_Sundar wrote: and having a val "{A89377EA-D4ED-4A03-A37F-4A9DE785E1A9}"
Try removing "{...}" from the beginning and from the end of the string.
Nibu thomas
MVP For VC++
Code must be written to be read, not by the compiler, but by another human being.
Programming Blog: http:\\nibuthomas.wordpress.com
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Hai Nibu,
wowwww!!!!!
Thanks a lotttttttttttttttttttttt!!
It solved it.
Have a nice day.  ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
Priya Sundar
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Hi,
I have heard of core dump, but i have no idea what is it ? How to use it in Visual Studio for debugging ?
Is it a file ??
Please help me in understnading this....
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Hi,
I want to replace the message box icon with my own icon. But i don't know how to get the Handle to message box icon.
Any suggestions are welcome.
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U will have to design a dialog box similar to message box and calll domodal for this newly designed dialog.
-sachin
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Lakshmi_p wrote: I want to replace the message box icon with my own icon. But i don't know how to get the Handle to message box icon.
Use MessageBoxIndirect and MSGBOXPARAMS. Look here[^] for a demo.
Nibu thomas
MVP For VC++
Code must be written to be read, not by the compiler, but by another human being.
Programming Blog: http:\\nibuthomas.wordpress.com
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Ho. Simple solution. I removed my post.
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Nibu thomas
MVP For VC++
Code must be written to be read, not by the compiler, but by another human being.
Programming Blog: http:\\nibuthomas.wordpress.com
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hi,
Thanks for ur reply.
Can we get the handle of messagebox default icon based on its its styles.
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Hello again.
Hope somebody can help me. When i create setup file in VC++ 2003 MFC I included configuration (*.ini) file which is needed in running the software. But if the user install it to a different location, I can't track or locate it so the *.ini file appears not to be found.
How can I track it in my code so wherever it resides I can still find it?
Or other trick perhaps.
That's all. Thank you.
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Thanks nave.
I think that makes sense.
It's a big help.
Till next time.
God Bless.
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See if GetModuleFileName(NULL, ...) helps, which is different than GetCurrentDirectory().
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hi all,
I am using ipl98 library version 2.20 and I was compile it successful. However, I can only use the static library is created by VC++.net (It can run ok with the example in ipl98 library project.) The dynamic library cannot use it to run the example.
About Borland C++, I also compile successfully but the dynamic library cannot do with the example. After that I compile it to create the static library, this is not successful, the error: library too large, please restart with library page size 32.
My purpose is using ipl98 library version 2.20 in the Borland C++. However, I spent a lot of time but until now I also cannot use it in the Borland C++. If you have any advices, any ideas, or any instructions please show me!
Can we use the static library created by VC++.net to transition dynamic library? Or Can we use the static library in Borland C++? Or you have another ways to solve it.
I hope I will get your feedback as soon as possible.
Best regards!
nothing
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Hello:
Looking for local (around Western Philadelphia, PA suburbs -- preferably Exton/Malvern area) person with experience coding C++ Windows Mobile apps.
SQL Server 2000/2005 experience helps.
Please send me a note if you are local and interested.
Please (please) no recruiters and check the map to see if you are local first. India is not local
Thanks
~Bill
Admin -- please move this if it belongs in a different forum area.
-- modified at 8:04 Monday 15th October, 2007
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