In the \fBset_\fR functions, window argument of \fBNULL\fR is treated as though
it were \fBstsdcr\fR. A form argument of \fBNULL\fR is treated as a request
to change the system default form window or subwindow.
In the \fBset_\fR functions, window argument of \fBNULL\fR is treated as though
it were \fBstsdcr\fR. A form argument of \fBNULL\fR is treated as a request
to change the system default form window or subwindow.