Question

i am a beginner and want to file handling concept in win32 application for writing anything say text in file which is present in some location on hard disk.

Please Reply

Thanks in advance…

Answer 1

You can do in this way
Suppose there is a folder called “XYZ” at “E:” drive & the file name is “abc.log” and the
function which u call is say “WSL”.

VOID __cdecl WSL(char *message);//function declaration

//Function definition:

VOID __cdecl WSL(char *message) 
{ 
   static int lineNo = 1;  
   FILE *fp = fopen("E:\\XYZ\\abc.log","a+");  
   if(fp!= NULL)  
   {   
        fprintf(fp,"%d : %s\n",lineNo++,message);   
        fclose(fp);
   } 
}

and at main function u r coding the following:

int main()
{
  FILE *fp = fopen("E:\\XYZ\\abc.log","w");
  WSL("Application opened");
  ........
  ........
  ........
  ........
  ........
  WSL("Application closed");
}

This will write two time at abc.log file since it is called twice in your main function.

First time it will print…

1. Application opened

& second time it will print

2. Application closed