VAX_MENU V4.2

     VAX_MENU was created to serve as a user friendly menu environment for
users of clinical databases. VAX_MENU uses VAX MENU definition files (VMF)
that allow conditional menu options, symbol substitution, variable video
attributes and procedural menu design. The menus can be popped up over
each other and then removed as needed. The menu allows numeric or cursor
driven option selection and supports multiple column options. Default
values for all menu parameters mean that a simple menu system can be
built up with a minimum of work.

     VAX_MENU was written under VMS 4.7 using FORTRAN 4.0. The program
relies on SMG$ calls for video control and QIO$ for key control (this
avoided the system hanging if the user entered an incomplete Escape
sequence). Symbols and Logicals can be created and tested within a VMF
file. When an option is selected DCL commands embedded within the VMF
file and associated with that option are spawned. When the spawn is complete
a return is made to the VAX_MENU program to either execute a further VMF
file associated with the chosen option or to terminate.


    I would be interested to hear any comments or suggested modifications for
VAX_MENU. I have provided source code with the view that those who make major 
enhancements to the software will share those through DECUS.

	Any questions or comments please contact:

		Mark C. Jones
		Colon Cancer Control Study,
		Suite 202,
		212 Ontario St S.E.,
		MN 55414
					Tel #: (612) 627-4151