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Environment: This code was compiled and tested with Visual C++ 6.0
In many applications it is necessary to have a logging system which logs text into a
file.The following class provides such a logging system which is very easy to use.
The features include
1. Logging of text directly / using string table ids
2. Tracking of log file size (displays warning messages without affecting further
logging)
3. automatically provides date and time with the log message
4. ablility to clear the log file etc..
How does the output text file look like ?
format is Date Time Logged text
For Example:
01/17/99 17:02:46 Here goes ur text
How do I integrate it with my existing code or how do I use it?
Just add the two files into ur project and in the appclass or ur
project create an object like this
In the header (.h) file
#include “log.h”
class CSomeApp : public CWinApp
{
public:
CSomeApp();
CLog m_Log;
…
};
In the implementation (.cpp) file
CSomeApp::CSomeApp():m_Log("log file name") // see log
constructor for more details
{
// TODO: add construction code here
}
and where ever you want to log u can use code like this…
extern CSomeApp theApp;
theApp.m_Log.LogMessage("this is what is logged"); // see
LogMessage for more details
or you can use these macros
// macro to log a string directly
#ifndef LOGS
#define LOGS(sz) ((CSomeApp*)AfxGetApp())->m_Log.LogMessage(sz)
#endif
// macro to log a string using a string table id
#ifndef LOGN
#define LOGN(a) ((CSomeApp*)AfxGetApp())->m_Log.LogMessage(a)
#endif