Gamerz Online

Too do autofire you can just use mouse_event to simulate pressing the fire key which is more than likely left mouse so you could do something like this:

if ( bAutoFire )
{
       mouse_event( MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0 );
 mouse_event( MOUSEEVENTF_LEFTUP, 0, 0, 0, 0 ); 
}