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Convert int to string and join two strings

VC++ (MFC) Tips : String

   int pointx=0, pointy=0;
   char * strx, stry, str;

    _ltoa(point.x,strx,10);         //convert data type from long into string (char *)
    _ltoa(point.y,stry,10);
    strcpy(str,"");                       //new a string
    strcat(str,strx);                    //plus a string
    strcat(str,",");
    strcat(str,stry);

Note: you'd better use lstrcpy, instead of strcpy. Because lstrcpy is a Win32 function, but strcpy is a Standard CRT function!