4.8 | 6 ratings Rate this file 163 downloads (last 30 days) File Size: 1.93 KB File ID: #8297

GetKeyWait

16 Aug 2005 (Updated 23 Apr 2009)

Wait a certain time for a single keypress (v2.0, apr 2009).

File Information
Description	GETKEYWAIT - get a key within a time limit 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. See also input, getkey (FileExchange)
Acknowledgements	The author wishes to acknowledge the following in the creation of this submission: getkey
MATLAB release	MATLAB 6.5 (R13)
Other requirements	works on most ML releases

Tags for This File
Everyone's Tags	getkey, input, kbhit, keypress, pause, timed
Tags I've Applied
Add New Tags	Please login to tag files.

Comments and Ratings (7)
16 Aug 2005	urs (us) schwarz	in need of some re-engineering as it creates a new timer object every time it is called, which could be deleterious when used in a long loop, for instance.
26 Feb 2006	Inese Steinbahs	Thank You! This function worked out for my program wounderfully!
17 May 2007	Joseph Hollmann	Great submission
27 May 2008	Iohan Sandoval	very good job! thanks
26 Jun 2008	kk kk	thank you...fantastic work
15 Sep 2009	Ehsan Negahbani	Great. Thank you Jos. Is it possible to prevent the appearance of figure tab in the task bar? I'm calling your function in a loop every second, and it works well, but there is continuous blinking between command window and windows task bar as your code opens and closes a figure window each time. I tried to off the 'visible' property of the figure, but it was not working...
29 Oct 2009	Jesse Hopkins	Just what I was looking for

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Updates
17 Aug 2005	Timer object was not deleted which could cause problems after (many) repetitive calls. Thanks to us.
17 Aug 2005	Timer object was not deleted which could cause problems after (many) repetitive calls. Thanks to us.
17 Aug 2005	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.
23 Apr 2009	updated checks and output

Tag Activity for this File
Tag	Applied By	Date/Time
keypress	Jos	22 Oct 2008 07:55:57
kbhit	Jos	22 Oct 2008 07:55:57
input	Jos	22 Oct 2008 07:55:57
timed	Jos	22 Oct 2008 07:55:57
getkey	Jos	22 Oct 2008 07:55:57
pause	Jos	22 Oct 2008 07:55:57

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