Hey guys, I am kind of new with C++. I have an assignment to do which is similar to this one:
My problems are how to read I/O files and how to actually DO this program. I am really lost with it.
This is not my homework, as u can see this link is from 2007. That is why I posted instead of my homework. I need assistance, so I will be able to solve my homework. If you can post something/link that may help me I will appreciate. Otherwise thank you, but I do know about my responsibilities as a student.
I have a need for creating a class template and you may help me.
 Multiple coclasses will be implemented in a single dll.
 Each coclass will implement the same interfaces but will have different class/clsid/resid.
 It is necessary to create a class template taking clsid/resid as its template paramemters.
 Finally, I need to use template classes for CoCreateInstance.
The problem is that I need to create many coclasses now and in the future.
I don't want to copy/paste for all of them because it is quite hard to maintain the source code for all the copy/paste'd coclasses. It is quite error-prone.
So, I definitely would like to create a class template.
Below, I created a class template and it compiled ok.
class ATL_NO_VTABLE CComT
: public CComObjectRootEx,
, public CComCoClass, &CLSID_T>
, public IDispatchImpl
I'm trying to compile a c++ project on a raspberry pi using g++. I get the following compilation error:
PROCESS.CPP: In function ‘int process(int, char*, ControlData*, char*, char*)’:
PROCESS.CPP:172:49: error: ‘_fullpath’ was not declared in this scope
PROCESS.CPP:185:45: error: ‘_fullpath’ was not declared in this scope
The file PROCESS.CPP has the header
which I thought should contain this declaration. I have checked the header path using the g++ -H command and it gives /usr/include/stdlib.h so I presume it is finding the file.
I don't want to start fiddling with my own declarations within the scope as there are many other files to include in this project.
_fullpath is a Microsoft specific library function that does not exist on Unix systems. You may use the realpath[^] function instead.
Because pathes are different on Unix and MS operating systems, the function call can't be simply replaced. I assume that you are tyring to compile some source that has been originally written for a Microsoft OS. You have to analyse the code and rewrite it to get similar behaviour on your Pi.
The underscore is a clue because it is not used with Unix libraries (at least the common ones). To get the description for standard library functions on your Pi just type "man <function_name>". I was quite sure that fullpath does not exist and checked it this way.
I have one query. I want to get the Login and Logout Time of a user. I want to get the time when user login to a pc, lock the PC, Logout (shutdown) the PC. I want to keep track of the Login / logout / Locking time of the user. Is there any class or any code available in C++ / MFC.
I have one query again. this function gives the Last logon and Logoff time in the number of seconds that have elapsed since 00:00:00, January 1, 1970, GMT. How can I get the correct value in Time format.
Also I want to get the record of user logon and logoff time for each day. Should I use the same function.?
I have one query again. this function gives the Last logon and Logoff time
in the number of seconds that have elapsed since 00:00:00, January 1, 1970, GMT.
How can I get the correct value in Time format.
Converting time since that epoch was something I learned very early on in my career (some 25 years ago). It's worth the effort at figuring it out (without the help of Google).
Also I want to get the record of user logon and logoff time for each day.
Should I use the same function.?
Since the above is always referenced from a fixed point in time, you'd need to "capture" it once per day. Admittedly, there may be a log somewhere that Windows keeps where it writes an entry for every time a user logs in/out of a workstation. I've never had the need to know so I can't tell you if this is true or not.
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