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Gokul_md wrote: GetPrinter(hPrinter, 2, NULL, 0, &dwNeeded);
if(!dwNeeded)
{
DWORD dwError = ::GetLastError();
ClosePrinter( hPrinter );
}
This should be:
if (! GetPrinter(hPrinter, 2, NULL, 0, &dwNeeded))
{
DWORD dwError = GetLastError();
FormatMessage(..., dwError, ...);
}
ClosePrinter(hPrinter);
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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Yes i have formated the dword error code to string in the above mentioned way only. but it return the empty string.
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Gokul_md wrote: Yes i have formated the dword error code...
What was its value?
Gokul_md wrote: ...but it return the empty string.
How are you verifying this?
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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i have formated the message using the below method.
LPVOID lpMsgBuf;
FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | RMAT_MESSAGE_FROM_SYSTEM,
NULL, dwError, MAKELANGID(LANG_NEUTRAL, LANG_DEFAULT),
(LPTSTR) &lpMsgBuf, 0,NULL );
CString strMessage = (LPTSTR)lpMsgBuf;
The error message is printed in the log file.
FILE *fp = fopen("C:\\log.txt","a+");
fprintf(fp,"\n Error Occured - %s ", strMessage );
fclose(fp);
in that log file it printer as
Error Occured -
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What is the value of dwError?
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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Hi,
Iam using a c++ dll in my .net application.It is running fine on the system where visual studio 2005 is installled.
In the deployment environment we have only framework2.0 installed on the machine.Then Iam getting a pop-up error as
"Microsoft visual c++ runtime library
Runtime error
c:\testapp\bin\debug\test.exe
The application has requested the application to terminate in the unusual way
Please contact the application's support team for more information"
Please kindly help ASAP
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- Please don't shout.
- Be aware: requests marked as 'urgent' go automatically on the bottom of the stack.
- See here [^].
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Hi,
Thanks for your reply...
If I tried this application the VS2005 machine it is working fine.
But when only .net2.0 framework I got the visual c++ runtime library pop-up error
I tried the following as suggested by you:
1. I have installled the redistributable package suggested by you.
after installing i restarted the PC even now also I got the same runtime pop-up error.
2. Then I checked even with the dependency walker for the dll.
I found that there is no miising dll.
3. Then I tried by installing Visual C++ express edition..even then also i got the same pop-up error.
Kindly help me.....
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Again I must be say one thing requests marked as 'urgent' will be send to Pallini's site. 
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please guide content structural file SCS. Spoolfile for Iseries.
eg:
1
-
-
0 RICHARD ALLEN 1234567 2/14/07
-
-
-
- You certify that:
0 A) You have purchased extended reporting coverage from your
previous carrier; or
0 B) You have decided not to purchase such extended reporting
coverage knowing that you are uninsured for your past medical
professional services; or
0 C) You are aware of your option to purchase suchextended
reporting coverage and realize that there is a time limit on
the purchase; or
0 D) You were insured for your past medical professional services
under an occurance policy.
0 Exclusion: We will not cover claims resulting from medical
professional services provided or withheld prior to your
retroactive date.
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Dear,
expart
I have a digital ink pad (G - Note 7000 of genius). How I interact with the pad when it connected to a pc(i have the driver soft ware).I am writing a MFC application which can do this, but i do this by mouse interact, so the the resolution of the pad scale to the monitor resolution. I want to the same resulution as the pad so that I can get the same ink as it give in off line mode.
please help me how to do this.
tanmay
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Hi All
Ho can i edit ragistry values in vista?I have regkey this
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR and Start default values is 3 ,no i want to chage it values 3 to 4.So how can i do this code.Plz help me
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i am useing code but no affect in regedit values.
HKEY hKey;
DWORD dwDisp = 0;
LPDWORD lpdwDisp = &dwDisp;
CString l_strExampleKey = "SYSTEM\\CurrentControlSet\\Services\\USBSTOR";
CString l_strDWordSample = "Start";
DWORD dwVal = 4;
LONG iSuccess = RegOpenKeyEx (HKEY_LOCAL_MACHINE, "SYSTEM\\CurrentControlSet\\Services\\USBSTOR", 0L, KEY_READ , &hKey);
if(iSuccess == ERROR_SUCCESS)
{
RegSetValueEx (hKey, l_strDWordSample, 0L, REG_DWORD,(CONST BYTE*) &dwVal, sizeof(DWORD));
}
RegCloseKey(hKey);
Plz help me
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What was return value of your code?
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MsmVc wrote: if(iSuccess == ERROR_SUCCESS)
{
RegSetValueEx (hKey, l_strDWordSample, 0L, REG_DWORD,(CONST BYTE*) &dwVal, sizeof(DWORD));
}
If RegSetValueEx fails, you can find out why by calling FormatMessage() with the FORMAT_MESSAGE_FROM_SYSTEM flag.
This is an undocumented secret.
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche
.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]
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Thanks for helping . Now it's working..It's my mistake.
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We aim to please. 
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche
.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]
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Rajesh R Subramanian wrote: We aim to please.
And pleasant it was.
Made my face turned into something that resembles a smile... 
Also brought up the score for what it's worth...
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown
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Thanks for the vote, Roger. Glad you liked the pun.
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche
.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]
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hi i have class
<br />
class abc<br />
{<br />
public:<br />
abc()<br />
{<br />
}<br />
void disp()<br />
{<br />
}<br />
};<br />
int main()<br />
{<br />
abc *c = 0;<br />
c->disp();<br />
return 0;<br />
}<br />
here for c is memory allocated. and can i access class methods from c.
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manjunath k reddy wrote: here for c is memory allocated. and can i access class methods from c.
No..
BTW Why you want to do it?
Regards,
Sandip.
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i have to nothing but only i wanted to know weather we can access class functions like this is it possible.
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No. You didn't create any instance of the object and you try to access a NULL pointer, thus this will crash. You have to create an instance either with new or this way: MyClass a;.
Anyway, this is really the basics so before going any further, I suggest you read a good book on C++.
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Just as a thought, if you need to access the member functions before creating an instance of the class you could define the function as static. That way if you needed to call the function, you could write abc::function();. Just realize that any member variables that the function needs will also have be declared static and at this point, you might as well not wrap the function in a class at all because it is sort of pointless. However, it is possible.
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