about Xorg.0.log file

[pintu mehta]

Hi
  X window is work like server so if i m doing anythings on desktop or
client take any service from x org function it's message should
reflect on Xorg.o.log file.why log file message entry till up the
desktop comes..just example

BLIT()
{
xorgmess("mouse event\n");
}

if above function calls then "mouse event" message should come always
in log file.it looks after initalization or after load of  xserver
logfile entry block..is it right??