How to simulate NUL character from keyboard?

Question

Can we type NUL character (HEX 0) from the keyboard?

Most of the printable character starts from HEX value 20.

@BrianRoach, i hope you understand the point of my question even if NULL is not a character. — P K, Feb 03 '12 at 07:02
NULL is a (control) character, in Ascii, Unicode (U+0000), and other standards. — Jukka K. Korpela, Feb 03 '12 at 07:15
The character in ASCII corresponding to 0 is *usually* referred to as `NUL`, not `NULL` — Damien_The_Unbeliever, Jun 28 '12 at 14:49
@Damien_The_Unbeliever Oh really? What is this I'm seeing in the C89 standard, then: http://port70.net/~nsz/c/c89/c89-draft.html#4.1.5 (page 108 in this PDF http://read.pudn.com/downloads133/doc/565041/ANSI_ISO%2B9899-1990%2B[1].pdf )? Looks like both are valid in different places, to me. I think NUL is usually a windows-ism. — Wyatt Ward, Nov 23 '18 at 16:52

score 6 · Answer 1 · edited Jul 25 '15 at 15:19

6

Ctrl+spacebar works for both Windows and Linux platforms.

edited Jul 25 '15 at 15:19

Bob Stein

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answered Sep 07 '14 at 08:59

jeevan

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My program says that it is 32, which is same as pressing only space, in my Windows. – Display name Oct 10 '20 at 10:58
Sublime adds lorem ipsum text on `Ctrl` + `space` In what context / what application does this sequence work? – dudeNumber4 May 06 '22 at 17:06

score 5 · Answer 2 · edited Jun 28 '12 at 14:45

5

See if this control character works:

Ctrl+@

edited Jun 28 '12 at 14:45

josh3736

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answered Feb 03 '12 at 07:00

egres

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It is 3 in my operating system: WIndows 10. – Display name Oct 10 '20 at 10:56

score 3 · Answer 3 · edited Jun 28 '12 at 14:44

3

According to Wikipedia

Ctrl+SPACE works on many terminals (worked for me).

edited Jun 28 '12 at 14:44

josh3736

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answered Jun 28 '12 at 14:41

Simon

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This does work. Curiously Ctrl+` (backtick, tilde key) also sends a null byte. – Steven Lu Oct 27 '20 at 20:38

score 1 · Answer 4 · answered Jan 19 '17 at 17:47

Press and hold Alt and type Num Pad 0Num Pad 0Num Pad 0 then release Alt

Note: You must use the 0 key on the numeric key pad (a regular 0 key won't work for this), and you have to hold down Alt the whole time. The keystroke isn't emitted until you release the Alt key.

score -1 · Answer 5 · answered Jun 27 '14 at 15:54

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In editing fields in SQL Server, it is Control Zero (Ctrl + 0)

answered Jun 27 '14 at 15:54

user1161391

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How to simulate NUL character from keyboard?

5 Answers5

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