strdim msg 10
msg[0] = 'line1 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45[' 
msg[1] = 'line2 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45['
msg[2] = 'line3 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45['
msg[3] = 'line4 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45['
msg[4] = 'line5 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45['
msg[5] = 'line6 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45['
msg[6] = 'line7 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45['
msg[7] = 'line8 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45['
msg[8] = 'line9 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45['
msg[9] = 'line10 4309tu 3045j j345yj345 oyj453jy 45jy 4hj y[h5w4 [ioyhj45wojh45['

getver ver
listbox 'select' ver msg
sprintf2 var "%d" result
messagebox var "result"