PROGRAM
The PROGRAM attribute can specify an external application program to work with
screen fields of data type TEXT or BYTE.
command is a command string (or the name of a shell script) that invokes an editing
program, enclosed within quotes.
field-tag is the field tag that you declared in the SCREEN section.
You can assign the PROGRAM attribute to a BYTE or TEXT field to call an
external program to work with the TEXT or BYTE values. Users of the application
invoke the external program by pressing the exclamation ( ! ) point key while the
screen cursor is in a blob field. The external program then takes over control of the screen. When the
user exits from the external program, the form is redisplayed, with any display
attributes besides PROGRAM in effect.
Related Attributes