Subject: Re: ENTER keys In message <538902171@KSINET.COM>, John.ksi@KSINET.COM says: > > We're using MicroSoft's telnet software to connect to Stratus (VOS). > Using a VT100 emulator (yes, on both ends - I'm not THAT novice) we > find that the ENTER key (the key marked "Enter" on the PC's keypad) > does the same thing as the RETURN key (the key marked "Enter" on the > main part of the PC's keyboard) when it comes to working with CRT > forms. > ... > (A) why do the RETURN and ENTER keys behave the same? > (B) how does one submit a completed CRT form with ONE keystroke? To which replied in message <199502171715.MAA11104@transfer.stratus.com>: | | You don't say which ttp you are using on VOS, but I will assume | it is the vt100.ttp file. | | The "keyboard" section of the vt100.ttp file defines the names | and key sequences used by the VT100 keys. In it we find: | | enter-key Enter esc O M I have not used the Microsoft "telnet" application, but one standard setup option in a DEC VT100 (or VT220, VT340, VT420, VT510, etc.) is the "keypad mode"--what the behavior of the numeric keypad should be. The two modes are "application" and "numeric". In numeric mode, the various keypad keys send either the ASCII code for decimal digits, or the ASCII code for the comma, period, or hyphen, or (in the case of the keypad "Enter" key") the ASCII carriage return control character (or CR/LF if so configured). The "Enter" key behavior you describe is characteristic of numeric- keypad mode. The application mode is used by programs that don't need decimal digits so much but need lots of user-activated software functions. The DEC text-editing programs (EDT, EVE, etc.) are a classic example. In application mode, the keypad keys send special Escape sequences that chiefly begin with the so-called SS3 (single-shift G3) prefix, which in 7-bit ASCII representation is the "Esc O". (In 8-bit, SS3 is the single code hexadecimal 8F.) The following chart summarizes the possible codes (7-bit) generated by the DEC terminals' keypad: Keypad Key Numeric Mode Application Mode ---------- ------------ ---------------- 0 0 Esc O p 1 1 Esc O q 2 2 Esc O r 3 3 Esc O s 4 4 Esc O t 5 5 Esc O u 6 6 Esc O v 7 7 Esc O w 8 8 Esc O x 9 9 Esc O y - - Esc O m , , Esc O l . . Esc O n Enter carriage return Esc O M PF1 Esc O P Esc O P PF2 Esc O Q Esc O Q PF3 Esc O R Esc O R PF4 Esc O S Esc O S was intended for use by programs that This is a matter that my site has encountered in a slightly different form. Article 2620 of comp.protocols.kermit.misc: Path: cs.utk.edu!cssun.mathcs.emory.edu!hobbes.cc.uga.edu!news-feed-1.peachnet.edu!gatech!swrinde!cs.utexas.edu!news.cs.utah.edu!cc.usu.edu!jrd From: jrd@cc.usu.edu (Joe Doupnik) Newsgroups: comp.protocols.kermit.misc Subject: Re: Defining functional keys Message-ID: <1995Apr22.122257.48276@cc.usu.edu> Date: 22 Apr 95 12:22:57 MDT References: <3n5307$jdd@kaie.va.ttu.ee> Organization: Utah State University Lines: 109 In article <3n5307$jdd@kaie.va.ttu.ee>, uuno@sofia.va.ttu.ee (Uuno Vallner) writes: > We try to use KERMIT DOS as terminal. We have Novel and Unix > mixed network. We try access to OSF/1 via IPX using Softnet in OSF/1. > > We defined Kermit port bios3. It works perfectly. We need to use estonian > characters. We are resolved this problem too. But ... > > We use application in OSF/1 (text retrieval system trip), which needs > for operating Application keypad (7,8. 9 ..1,0 ...)and some functional keys. > But Kermit are using 7 as "home" > > Kermit interpreted non correct functional keys. After pressing f1, system > sends only ESC , after next f1 follows code and new ESC. Same effect is with > array keys. -------------- I think there is some confusion about DEC versus IBM PC keys. The relationship is detailed in distribution file MSVIBM.VT and also in the user's manual book "Using MS-DOS Kermit." The IBM PC numeric keypad keys are not necessarily related to the DEC KeyPad keys. Here is a cutout from my copy of msvibm.vt: 1. VT320/VT102/VT52/Heath-19 EMULATOR IN MS-DOS KERMIT IBM-PC, CODE SUMMARY VT320/VT102 keypads Heath-19 and VT52 Keypads IBM keys IBM Keys +------+------+------+------+ +------+------+-------+----------+ | PF1 | PF2 | PF3 | PF4 | | Blue | Red | Grey | up arrow | - Vendor | F1 | F2 | F3 | F4 | | F1 | F2 | F3 | up arrow | - Kermit +------+------+------+------+ +------+------+-------+----------+ | 7 | 8 | 9 | - | | 7 | 8 | 9 |down arrow| | F5 | F6 | F7 | F8 | | F5 | F6 | F7 |down arrow| +------+------+------+------+ +------+------+-------+----------+ | 4 | 5 | 6 | , | | 4 | 5 | 6 | rgt arrow| | F9 | F10 | SF1 | SF2 | | F9 | F10 | SF1 | rgt arrow| +------+------+------+------+ +------+------+-------+----------+ | 1 | 2 | 3 | E | | 1 | 2 | 3 |left arrow| | SF3 | SF4 | SF5 | n S| | SF3 | SF4 | SF5 |left arrow| +------+------+------+ t F| +------+------+-------+----------+ | 0------0 | . | e 6| | 0------0 | . | Enter | | SF7 | SF8 | r | | SF7 | SF8 | SF6 | +-------------+------+------+ +-------------+-------+----------+ SF1 means push Shift and F1 keys simultaneously --------------------------------------------------------------------------- Below, the acronyms CSI and SS3 stand for 8-bit control codes in an 8-bit environment or for their 7-bit equivalents "ESC [" and "ESC O", respectively. Command SET TERMINAL CONTROL {8-BIT | 7-BIT}, and an equivalent command from the host, determines the usage for output text; use of parity forces 7-bit mode. CSI is decimal 155, SS3 is decimal 143. Similarly, DCS is decimal 144 or ESC P and ST is decimal 156 or ESC \. APC is decimal 159 or ESC _. --------------------------------------------------------------------------- Codes sent by DEC and Heath arrow keys Key Verb IBM VT320/VT102 mode VT52/H19 mode key Cursor Application Cursor or Application up uparr up CSI A SS3 A ESC A down dnarr down CSI B SS3 B ESC B right rtarr right CSI C SS3 C ESC C left lfarr left CSI D SS3 D ESC D Codes sent by DEC editing keys, not preassigned to keys. Key Verb VT320 mode VT102/VT52/H19 mode Find decFind CSI 1 ~ these keys Insert Here decInsert CSI 2 ~ send nothing Remove decRemove CSI 3 ~ Select decSelect CSI 4 ~ Prev Screen decPrev CSI 5 ~ Next Screen decNext CSI 6 ~ ~ is ASCII chart 7/14 Codes sent by DEC Numeric Keypad Key Verb IBM ANSI VT320/VT102 mode VT52/H19 mode key Numeric Application Numeric Application PF1/HF7/Blue Gold,pf1 F1 SS3 P SS3 P ESC P ESC P PF2/HF8/Red pf2 F2 SS3 Q SS3 Q ESC Q ESC Q PF3/HF9/Grey pf3 F3 SS3 R SS3 R ESC R ESC R PF4/HF1 pf4 F4 SS3 S SS3 S ESC S ESC S 0 kp0 SF7 0 SS3 p 0 ESC ? p 1 kp1 SF3 1 SS3 q 1 ESC ? q 2 kp2 SF4 2 SS3 r 2 ESC ? r 3 kp3 SF5 3 SS3 s 3 ESC ? s 4 kp4 F9 4 SS3 t 4 ESC ? t 5 kp5 F10 5 SS3 u 5 ESC ? u 6 kp6 SF1 6 SS3 v 6 ESC ? v 7 kp7 F5 7 SS3 w 7 ESC ? w 8 kp8 F6 8 SS3 x 8 ESC ? x 9 kp9 F7 9 SS3 y 9 ESC ? y comma (,) kpcoma SF2 , SS3 l , ESC ? l minus (-) kpminus F8 - SS3 m - ESC ? m period (.) kpdot SF8 . SS3 n . ESC ? n Enter kpenter SF6 CR or SS3 M CR or ESC ? M CR LF (newline on) CR LF (SFn means hold down Shift key while pressing Function key n.) --------------- Please note that \Kkp0...\Kkp0 are placed on IBM PC function keys by default. You can redefine such things using Kermit command SET KEY, as discussed in depth in "Using MS-DOS Kermit." I don't quite understand why you are using SET PORT BIOS3. Do you have some Int 14h interceptor present to route traffic to the net? For real serial ports BIOS3 is terrible. If you are using Novell's ODI material then Kermit can operate as a native ODI client (using it's internal TCP/IP stack). This is discussed in the release notes. Joe D.