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What part of "The project is missing a reference to a library (.LIB) or object (.OBJ) file" are you not understanding? Did you read the .lib Files as Linker Input link?
"One man's wage rise is another man's price increase." - Harold Wilson
"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
"Man who follows car will be exhausted." - Confucius
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hi,
i am facing the following trouble. i have included the path of the libraries ad "tools->options->include files
libgroupsock.lib(GroupsockHelper.obj) : error LNK2001: unresolved external symbol ___security_cookie
like this i am facing the problem with four libraries.
can u guide me ?
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sindhumahe wrote: i have included the path of the libraries ad "tools->options->include files
Why would you do that? Libraries and include/header files are not the same thing.
If you are using VS6, click the Directories tab of the Tools->Options dialog. In the Show directories for: combobox, select Library files. Add the name of the folder that contains the .lib file you are using. Click the Link tab of the Project->Settings dialog. In the Category combobox, select Input. In the Object/library modules: edit control, add the name of the .lib file you are using.
"One man's wage rise is another man's price increase." - Harold Wilson
"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
"Man who follows car will be exhausted." - Confucius
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hi ,
i already tried to include the libraries in the Directories tab of the Tools->Options dialog.
but that didnt solve the problem .
i opened a .mak file in the workspace, its not a project. so in its settings in dont have an option for link the .lib files .
how should i build a .mak file which has to be linked to few of the libraries.
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sindhumahe wrote: i already tried to include the libraries in the Directories tab of the Tools->Options dialog.
You mean the libraries folder?
"One man's wage rise is another man's price increase." - Harold Wilson
"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
"Man who follows car will be exhausted." - Confucius
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hi,
ya i included the folder where the .lib files are present. any idea to resolve this , kindlyhelp.
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hi,
i will tell what i need exactly.
i have .mak file called testprogs.mak.
this has to be linked to four .lib files.
the problem is how should i first build a make file. what i do is
openworkspace -> .mak file -> ok
vc 6.0 by default creates a workspace.
now the item opened in just a make file and not a project, so i am not able to link the .lib files. and finally getting many errors.
kindly help me
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I cannot figure out if you are using a .mak file or the IDE to compile your project. I would be inclined to get everything working using the latter, and then create a .mak file from that.
"One man's wage rise is another man's price increase." - Harold Wilson
"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
"Man who follows car will be exhausted." - Confucius
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hi ,
i am not able to find the .lib file which u mentioned. any idea to resolve my problem ?
pplz help.
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If you do not have the necessary .lib files, the problem cannot be resolved.
"One man's wage rise is another man's price increase." - Harold Wilson
"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
"Man who follows car will be exhausted." - Confucius
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sindhumahe wrote: libgroupsock.lib(Groupsock.obj) : error LNK2001: unresolved external symbol _security_cookie
See here, especially the Compiling and Linking Problems section.
"One man's wage rise is another man's price increase." - Harold Wilson
"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
"Man who follows car will be exhausted." - Confucius
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Hi,
This means that the library was compiled with Buffer Security Check[^]. Since we know that Visual Studio 6 does not implement compiler security checks... this means that the library you are attempting to use was compiled with VS2002 or above.
You have two choices:
1.) Recompile the library with /GS (Buffer Security Check)[^] disabled.
2.) In your VC6 project... try linking with the bufferoverflowU.lib library that was included in deprecated (older) versions of the Platform SDK.
Compiler Security Checks In Depth[^]
Best Wishes,
-David Delaune
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Hi guys,
I have a "display driver" program which I install it successfully on all kinds of OS.
Then I call "::CreateDC()" to create a corresponding device context in another program, it
works fine in most OS except in win2K.
I mean, "::CreateDC()" succeeds in "XP, Vista, Win7", but fails in "Win2K"(returns NULL and
GetLastError() is ERROR_INVALID_PRINTER_NAME(1801)).
I googled it and did find some threads, but all are vague.
However, I figure it's kinda "win2k OS" issue. I think function implementation of "CreateDC" in "win2k" has imperfection.
Does anyone happen to encounter this same problem? Any workaround with it?
Any replys are appreciated 
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You could try to use the DC
returned by PrintDlgEx(..)... 
virtual void BeHappy() = 0;
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Thanks for your reply
But I think you misunderstood it. It has nothing to do with "Print" or "Printer".
It's about "video display driver"
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Yes, I have probably misunderstood it...
...does your call look like ::CreateDC("DISPLAY", NULL, ...); under W2K ?
virtual void BeHappy() = 0;
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 The follow is my code fragment:
HDC CreateDCFromDriver()
{
HDC hDC;
char lpszDriver[0x20];
if ( FALSE == GetDriverDeviceName(lpszDriver) )
return NULL;
hDC = ::CreateDCA(lpszDriver, 0, 0, 0);
if ( hDC == NULL )
{
MM_TRACE(_T("CreateDCFromDriver: ErrorCode - %08X"), GetLastError());
}
return hDC;
}
I think my code is just OK, cause everything works fine in "xp, vista, win7" OS.
It only occur in "win2k", when in "win2k" OS the code will go into "MM_TRACE(_T("CreateDCFromDriver: ErrorCode - %08X"), GetLastError());
". Meanwhile in other OS, it go into "return hDC;" correctly.
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You could try to trace the lpszDriver too...
virtual void BeHappy() = 0;
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Yes, I've tried that, and it's like "\\.\DISPLAY3" which is OK.
I still believe that this problem is caused by the implementation of function "CreateDC" under
"win2k" OS.  I just want to know if there's a workaround out there about this issue. 
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Would it be enough under win2k ? :
MSDN: If there are multiple monitors on the system, calling CreateDC(TEXT("DISPLAY"),NULL,NULL,NULL) will create a DC covering all the monitors.
virtual void BeHappy() = 0;
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I do believe that it's relevant to multiple monitors, but I just can't ask our users to set up
another monitor or another video card, or something like that.
I can only make some improvement in our program which I still don't know how to do it.
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Probably the function can not understand the driver name under Win2k
and try to find a printer with the name pointer NULL...
virtual void BeHappy() = 0;
modified on Tuesday, March 30, 2010 4:58 AM
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Yes, I agree with your point.
I found something on the internet which says it may be:
* concerning issues about "video card", like "dualhead cards that use a single chipset"
* or some "security risk" after win2k OS
But for me, neither seems to be correct 
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Anyway, I really appreciate your help.
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Is there any inbuilt function in C-Socket Programming for retrieving the IP addresses of all PC's connected in LAN?
Don't die, until you do.
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