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getkeywait

version 3.0 (2.18 KB) by Jos (10584)
Wait a certain time for a single keypress

6.6K Downloads

Updated 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 ;-)

Cite As

Jos (10584) (2021). getkeywait (https://www.mathworks.com/matlabcentral/fileexchange/8297-getkeywait), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2018b
Compatible with any release
Platform Compatibility
Windows macOS Linux
Acknowledgements

Inspired by: getkey

Inspired: waitinput

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