Description
bool 
proc_nice ( int increment )
   proc_nice() changes the priority of the current
   process by the amount specified in increment. A
   positive increment will lower the priority of the
   current process, whereas a negative increment
   will raise the priority.
  
   proc_nice() is not related to
   proc_open() and its associated functions in any way.
  
Return Values
   Returns TRUE on success or FALSE on failure.
   If an error occurs, like the user lacks permission to change the priority, 
   an error of level E_WARNING is also generated.