CCK3(0,(2,charset); ==> c;) "Define Character set"

Defines the character set used for line mode data. (Screen mode always uses EBCDIC.)

Charset must be one of these:

0: Ascii. This is the initial value. c=0.

1: EBCDIC. c=0.

c=1 if charset > 1.

Returns the current value of the character set in charset. If 3270 screen mode is available, also returns the model number, and the number of columns and rows on the screen.

Turns on a flag called "gobbling".

While gobbling is on, SOK3 will be prompt. Messages for the circuit (including perhaps echoes) will be discarded beginning at this point in the output stream. However, a character gobbler is never discarded. If gobbling is turned on while SOK3 is consuming, it returns immediately. Gobbling is initially off.

Destroys the terminal module and returns the underlying keys.

Tabtable is a string of up to 256 bits {32 bytes}. There will be a tab stop in column i if the i'th bit is a one. If tabtable is shorter than 32 bytes it is padded with bytes of value hex 80 {specifying a tab stop every 8 columns}.

If there is a transmission in progress, C=1 and the tab stops are not changed. C=0 if ok.

If the terminal prints tabs but tab stops can't be set remotely then the tab table is not used.

This operation has its effect at some instant between the jump to CCK3 and its return. The effect is: if SIK3 is producing, it promptly stops producing and returns whatever data it may have. If SIK3 is not producing, then the next time it becomes producing it will return promptly.

"Activate now" ends a transmission if the echo mask was zero.

Theorem: If process A is prompt except for calling SIK3, and process B changes a variable (which is shared with A) and then does an "activate now", process A will see the changed variable promptly.

Turns off "gobbling".

If there is a transmission in progress, c is 1. Otherwise c is zero and when CR is being echoed, it is echoed as carriage return, linefeed.

If there is a transmission in progress, c is 1, otherwise c is zero.

If there is a transmission in progress, c is 1, otherwise c is zero.

If there is a transmission in progress, c is 1, otherwise c is zero.

The string will be displayed in the status area of the screen when in line mode. String is interpreted in the current character set at the time of this call.

c=0: The entire string is used.

c=1: String was truncated to fit the status area.

The string (64 characters max) will be written into the input area of the 3270 when PF key n (1-12) is pressed while in line mode. If string is null then the default action is taken when the PF key is pressed.

c=0: The PF key is set

c=1: The PF key is not set (not supported by the terminal handler)

If there is a transmission in progress, c is 1. Otherwise c is 0 and the activation set mask is set to a, where a is less than 256.

If there is a transmission in progress, c is 1. Otherwise, the echo mask is set to b, where b is less than 256. An input character is echoed if it is in mask set i and bit i of the echo mask is on. See (p2,maskset) for the definition of mask sets.

Examples:

To echo everything except non-printing control characters, set the echo mask to X'F7'.

To echo nothing, set the echo mask to zero.