&LUEXTHI

Indicates if the terminal supports extended highlighting.

&LUEXTHI is a system variable that is used to determine if the terminal from which the NCL procedure is executing supports extended highlighting. If the terminal does support extended highlighting &LUEXTHI is set to YES; if not, &LUEXTHI is set to NO.

If the NCL procedure is executing in an environment which is not associated with a terminal (for example, a background environment), &LUEXTHI is set to a question mark (?).

&LUEXTHI is used within an NCL procedure to determine the type of processing possible for a particular terminal.

Example: &LUEXTHI

&IF &LUEXTHI EQ YES &THEN +
  &GOTO .BLINK

Notes:

Testing of device attributes from within an NCL procedure displaying full-screen panels is not normally required as Panel Services automatically suppresses the generation of extended highlighting data streams if not applicable to the device to which the panel is being sent.

&LUEXTHI is set only if the BIND parameters for the terminal correctly indicate that the terminal supports READ PARTITION QUERY. If set, the system interrogates the terminal at connection time and determines which extended facilities are supported. Alternatively, the TERMINAL command is used to temporarily indicate that the terminal supports extended highlighting.

More information:

&LUEXTCO