Terminal and function keys

Table 1. System variables: Terminal and function keys
Name	Pool	Type	Len	Description
ZCOLORS	shr	non	4	Number of colors supported by the terminal type (either 1 or 7)
ZDBCS	shr	non	3	DBCS terminal capability (YES or NO)
ZFKA	prof	non	8	Current state of the function key area form (LONG, SHORT, OFF (no display))
ZGE	shr	non	3	Terminal support for graphic escape order: YES graphic escape is supported NO graphic escape is not supported Note: If you are running in GUI mode, ZGE will be set to NO.
ZHILITE	shr	non	3	Extended highlighting availability (YES or NO)
ZIPADDR	shr	non	15	TCP/IP address of the currently connected TN3270 workstation. Entering the TERMSTAT QUERY option of the ENVIRON command will refresh the value. (Contains FFF.FFF.FFF.FFF on IPV6 systems.)
ZIPADD6	shr	non	39	IPV6 address of the currently connected TN3270 workstation. Contains blanks on IPV4 systems. Entering the TERMSTAT QUERY option of the ENVIRON command will refresh the value.
ZIPPORT	shr	non	4	TCP/IP port number of the currently connected TN3270 workstation. Entering the TERMSTAT QUERY option of the ENVIRON command will refresh the value.
ZLUNAME	shr	non	8	VTAM® LU name of the current TSO session. Entering a TERMSTAT QUERY command will refresh the value.
ZKEYS	prof	out	4	Number of Function keys
ZKLAPPL	shr	non	4	If KEYLIST is ON and it is a panel with the )PANEL statement, this contains the application id where the current keylist came from.
ZKLNAME	shr	non	8	If KEYLIST is ON and it is a panel with the )PANEL statement, this contains the name of the current keylist.
ZKLTYPE	shr	non	1	If KEYLIST is ON and it is a panel with the )PANEL statement, this contains either P (for Private) or S (for Shared) for the current keylist.
ZKLUSE	prof	i/o	1	If KEYLIST is ON this contains Y, if it is OFF, it contains an N.
ZPFCTL	prof	i/o	5	User authorization to use PFSHOW command USER—User controls function key display with PFSHOW command ON—Display function key definitions on all panels OFF—Do not display function key definitions
ZPFFMT	prof	i/o	4	Number of Function key definitions displayed per line SIX—Always display six keys per line MAX—Display as many keys as will fit on each line
ZPFSET	prof	i/o	4	Function key definition set displayed PRI—Primary set (1-12) ALT—Alternate set (13-24) ALL—All keys (1-24)
ZPFSHOW	prof	out	4	PFSHOW command status
ZPFxx	prof	i/o	255	Setting for Function keys: ZPF13-ZPF24 contain settings for the primary keys (for 12-key terminals: physical keys 1-12; for 24-key terminals: physical keys 13-24) ZPF01-ZPF12 contain settings for the alternate keys (for 24-key terminals only: physical keys 1-12) The maximum length is 255.
ZPFLxx	prof	i/o	8	Setting for Function key labels: ZPFL13-ZPFL24 contain labels for the primary keys ZPFL01-ZPFL12 contain labels for the alternate keys
ZPRIKEYS	prof	i/o	4	Indicates the set of Function keys that will be the primary keys LOW—1 to 12 are primary keys UPP—13 to 24 are primary keys
ZSCREEN	shr	non	1	Logical screen number up to 32 screens (1-9, A-W)
ZSCREEND	shr	non	4	Screen depth available for dialog use. In batch mode, this variable is set by the value specified for BATSCRD on the ISPSTART call.
ZSCREENW	shr	non	4	Screen width available for dialog use. In batch mode this variable is set by the value specified for BATSCRW on the ISPSTART call. ZSCREEND and ZSCREENW are generally the dimensions of the physical display screen. There are two exceptions: On a 3290, if a dialog is executing on a display with a width of 160 characters and the user does a vertical split, then ZSCREENW is 80. On a 3278 model 5, if a user has specified SCREEN FORMAT IS STD, then ZSCREENW is 80 and ZSCREEND is 24, rather than the maximum physical size of 132 by 27.
ZSCRMAXD	shr	non	4	Maximum screen depth available for dialog use. In batch mode, this variable is set by the value specified for BATSCRD on the ISPSTART call.
ZSCRMAXW	shr	non	4	Maximum screen width available for dialog use. In batch mode, this variable is set by the value specified for BATSCRW on the ISPSTART call. ZSCRMAXD and ZSCRMAXW are identical to ZSCREEND and ZSCREENW, except for terminals on which an alternate size is available. In that case, ZSCRMAXD and ZSCRMAXW contain the screen configuration size that produces the largest screen. For the 3290, these variables contain sizes of the hardware partition on which ISPF is operating.
ZSPLIT	shr	non	3	Split-screen mode in effect (YES or NO)
ZSWPBR	prof	non	1	List of logical screens displayed at bottom of screen. Has a value of Y if the SWAPBAR feature is turned on. If ZSWPBAR is not present, or does not have a value of Y then when ISPF is entered, SWAPBAR is not automatically started.
ZTERM	prof	out	8	Terminal type as defined by option 0