getkeywait

Version 3.0 (2,18 KB) von Jos (10584)
Wait a certain time for a single keypress
6,8K Downloads
Aktualisiert 11 Feb 2019

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CH = getkeywait(P) waits for a keypress for a maximum of P seconds. P
should be a positive number. CH is a double representing the key
pressed key as an ascii number, including backspace (8), space (32),
enter (13), etc. If a non-ascii key (Ctrl, Alt, etc.) is pressed, CH
will be NaN. If no key is pressed within P seconds, -1 is returned,
and if something went wrong during excution 0 is returned.
Without argument, getkeywait waits until a key is pressed.

[CH, RT] = getkeywait(..) returns the response time in seconds in RT.


Example:
disp('Press a key within 5 seconds') ;
[CH, DT] = getkeywait(5)

See also input, ginput, waitbar, msgbox
getkey (file Exchange)

Authors note: This file was created in 2005 and is still working ;-)

Zitieren als

Jos (10584) (2024). getkeywait (https://www.mathworks.com/matlabcentral/fileexchange/8297-getkeywait), MATLAB Central File Exchange. Abgerufen .

Kompatibilität der MATLAB-Version
Erstellt mit R2018b
Kompatibel mit allen Versionen
Plattform-Kompatibilität
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Mehr zu Argument Definitions finden Sie in Help Center und MATLAB Answers
Quellenangaben

Inspiriert von: getkey

Inspiriert: waitinput

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Version Veröffentlicht Versionshinweise
3.0

modernised

1.2.0.0

changed some figure properties; added check for figure existence

1.1.0.0

updated checks and output

1.0.0.0

The timer object existed beyond the scope of the function, which could be problematic when the function is called often, e.g., in a long loop.