|
this is exactly what I am looking for!
Thank you very much!!!
-------------------
I am learning C++ and English
|
|
|
|
|
hey, working with winpcap and trying to create a dll, my source is working, except the compiler will not build my project because it is complaining about unreferenced identifiers, which are referenced in the wpcap.lib file. I added the lib to my files using project > add to project > files.. and that didn't work. I then tried adding the reference via ALt + F7 > link tab and that didn't work either. I am rather new to visual studio and am at a loss. What do I need to do to link the library to my project? thanks in advance.
nada
|
|
|
|
|
You do not add lib files to project, instead you have to add them to
project -> settings -> link tab. There should be something called additional libs. I don't remember what exactly it is called and I dont have vc 6.0.
-Saurabh
|
|
|
|
|
OK, I tried:
1. Project
2. Settings
3. Link Tab
4. Switched 'Category' to 'Input'
5. A Text field appeared with the name, 'Additional Library Path'
6. I typed the path: c:\mylibs
7. OK
Doesn't work. Repeat steps 1 - 6, but included the name of the lib with path. Clicked OK, and still not working.
Does it matter that I am writing a dll, because the lib works in the exe I wrote but not in the dll project. I didn't create the initial exe project, so I don't know how it was linked, I simply built off the example.
Anymore help, anyone? thanks in advance.
|
|
|
|
|
|
I've just recently tried that as well, however, that did not work either. I ahve no idea why not. I figure if I specfied the directory the lib is in and include it in the list, I should be able to use it in my project --that is not the case.
I absolutley NEED this lib to link up, otherwise my code is completly functionless. What else should I be doing? I looked at my exe project: the one that the lib is currently linked and working --I saw no reference to the lib in links. Instead, the lib was listed amongst the source, def, header, etc.. files. I have no idea how it was linked.
I am currently learning how to write dlls, and it would be a great help to get this working, so thank you thus far, any more ideas, and thanks in advance.
|
|
|
|
|
try #pragma comment(lib,_T("yourlibaray name"))
|
|
|
|
|
I put that in stdafx.h, right? Well, I tried it there and it said:
[quote]
Line (13) : warning C4083: expected 'string'; found identifier '_T'
[/quote]
...then I tried it in the main source file and it said the same. I have seen that suggested in other forums, do I need to put the path as well or just the name? Do I still need to add the references to the lib in the link tab or no? BTW, since I have read to use the pragma thing, I have tried it this way:
[quote]
#pragma comment( lib, "wpcap.lib")
[/quote]
...and that did not work as well. I thought the added _T() thing would be the solution. thanks anyway.. any more ideas from anyone? thanks
|
|
|
|
|
borono wrote: #pragma comment( lib, "wpcap.lib")
What is the exact error when you try using this? Can you copy and paste the output from the bottom of MSVC.
|
|
|
|
|
sure, here it is:
--------------------Configuration: test - Win32 Release--------------------
Compiling...
test.cpp
C:\test.cpp(24) : error C2065: 'pcap_findalldevs_ex' : undeclared identifier
C:\test.cpp(24) : error C2065: 'PCAP_SRC_IF_STRING' : undeclared identifier
Error executing cl.exe.
test.dll - 2 error(s), 0 warning(s)
thanks in advance
|
|
|
|
|
This is not a lib error, this error means you are trying to use a function which the compiler cannot find. Did you include the header file for winpcap
#include <pcap.h>
-- modified at 0:42 Sunday 2nd April, 2006
|
|
|
|
|
yes. I added it to the project via project > add to project > files... then in code as you have above. I looked in the header and the pcap_findalldevs_ex identifier is not listed, only pcap_findalldevs is, and neither is PCAP_SRC_IF_STRING.. those are identified in the wpcap.lib file. That is why I assumed the lib was not linked properly. I have the associated .dll for the lib, so it should work if linked properly, I assume. I must have screwed something up in the transition. It has to be in the way I am linking the header or lib. Assuming the header is present, the lib is linked via the links tab, what else could be the problem and/or possible soultion? I appreciate the help guys. thanks
|
|
|
|
|
borono wrote: those are identified in the wpcap.lib file
A defined function is only a function name, these will be in your header files and they tell the compiler that there is a function of that type, the linker then tries to find it.
A declared function is a function and all of it's code, this would be in a source file, or in your case a lib file.
The problem you are having is that the compiler doesn't know that the function exists.
Add this line directly before you include pcap.h #define HAVE_REMOTE
and let me know.
-- modified at 1:09 Sunday 2nd April, 2006
Another note, you can't find them in the header file because you are looking in the wrong one. Take a look in the remote-ext.h header file
|
|
|
|
|
I dont know if I did the equivalent. I did this and it compiled with no errors, just a minute ago.
1. Project
2. Settings
3. C/C++ tab
4. Change Settings For to All Configurations
5. Preprocessor Defintions add: HAVE_REMOTE
6. OK
I now have to figure out why the dll when called is crashing the app. At least I can start working on the code again, that was rather annoying to deal with, indeed. I will try to do it your way to see if that makes a difference at run time. I appreciate the help a lot, I might come back once I get a handle on this dll and actually start coding something. I will most likely have questions. haha
Anyway, I guess this is solved. Thanks again
best regards
|
|
|
|
|
borono wrote: I dont know if I did the equivalent.
There is no difference, they will both do the same thing
|
|
|
|
|
Hi Nish,
I was visiting your site recently and about the method of showing a message box after the main window is closed on an mfc app, i have 2 alternatives. (I decided to contact you here)
1) Removing the WM_QUIT message from the queue after dlg.DoModal() returns.
2) Calling AfxOleLockApp() at the beginning of InitInstance and then calling AfxOleUnlockApp() and AfxPostQuitMessage(0) when i really have to quit.
Best regards and great articles you have,
Mauro Leggieri.
-- modified at 4:45 Sunday 2nd April, 2006
|
|
|
|
|
Mauro Leggieri wrote: i have 2 alternatives. (I decided to contact you here)
 How about contacting him directly? or Posting the question in related forum.
http://www.voidnish.com/ContactMe.aspx[^]
Got Signature?
|
|
|
|
|
Hi,
He wrote in his site to contact him by email or any can found him on codeproject's lounge and I was unsure if I post the message in other forum he would see it.
It was a simple choice and my intention was not to offend anyone.
Best regards, Mauro.
|
|
|
|
|
Is this shot priceless or what?
Young Nish
and cool Window Sizer app - I was looking for something like that for making consistently sized screencasts.
Montreal great Guy Lafleur, quoted by CBC on being mugged while vacationing recently in Buenos Aires: "I didn't have any time to react before I got a sucker-punch in the eye. It was like one of the players from the Bruins."
|
|
|
|
|
Hi!
I have got a dialog application that incorporates an openGL Window. When I call an AfxMessageBox my whole application just stalls when it is supposed to come up. Does anyone know why that would be? I am just using the normal command
AfxMessageBox("Errormessage");
Thanks in advance!
|
|
|
|
|
Its because AfxMessageBox creates a model dialog box, which is supposed to prevent interaction with application. I you want to be able to interact with application while a dialog is being showed look for modeless dialog in msdn.
-Saurabh
|
|
|
|
|
Oh but the message box does not even show up!  Or could it be that I just can't see it, but don't think so. I tried the message box in another dialg application (which is a lot simpler though) and it works fine there. Very strange!!
|
|
|
|
|
are you sure line containing AfxMessageBox is being executed. can you try to put a breakpoint at that line, run in debugging mode, and see if control reaches that line.
-Saurabh
|
|
|
|
|
hi,
please help me, how to access picture in memory
i have try used DirectShow but stiil can't
|
|
|
|
|
Can you be more explicit? what's the source of picture, what format is it in.
-Saurabh
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
