There are two special procedure that you can use for special purposes:
* procDummy() - it is defined as void far procDummy(void) . So it
does nothing and can be used as dummy parameter when calling
constructors, e.g. instead of pointer to the paint procedure when you
declare FIXED or POPUP Object, or instead of the background procedure in
Virtual Panels loop calling bsName.Loop(procDummy).
* procNULL() - it may be used instead of procDummy() when you want to be aware of improper call of the user-defined procedure. It makes error exit with error message procNULL : Illegal object proc call.