Online menus and their related formatted and display panels temporarily override PF3. PF3 is used there as a quit function to return to the menu. Any value that the user defines is ignored until PF3 is used once or the user enters a top line command.
A CA WA CA 7 Edition PF key assignment is honored in the CA WA CA 7 Edition TSO-ISPF environment when PASSTHRU is the ISPF application command table value that is associated with the ISPF command that is assigned to the PF key in question.
You can view assigned values by entering a /DISPLAY,ST=KEY command.
/PF99 cancels all /PF and /PA command assignments on that terminal for both PA and PF keys. (The assignments in the initialization file are not removed.) If entered with a null MSG value (for example,/PF01,MSG=) the character string that is assigned to the key by a previous /PF command is removed. (The assignments in the initialization file are not removed.)
All /PF command assignments are carried across /LOGOFF and /LOGON command sequences, but not across initializations of CA WA CA 7 Edition. Remember that /PF command assignments are associated with terminals. This assignment is an important consideration if virtual terminals are used.
Default values for PF keys, if not overridden during initialization or by a /PF command, are the following values:
PF1 - /PURGPG
PF2 - /FETCH
PF3 - /NXTMSG
In a VTAM environment, a PF key is normally assigned as the VTAM logoff key in the initialization file. If this assignment is not made to one of the keys and a /PF or /PA command has not been used to define a /CLOSE command, the /CLOSE top line command must be used for that purpose.
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