how to use the kbhit function to poll for keypress

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genesis 2013-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/91209-how-to-use-the-kbhit-function-to-poll-for-keypress

评论： genesis 2013-10-23

i came across this function khbit by Amanda but i cant figure out how to use it. i initialize the function and press a key but it did not register anything at all. anyone with any idea how this function work?

what im trying to do is to see if the user press a key eg: Enter during program execution. if the particular key is pressed, the program should perform other task.

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Answer 1

Walter Roberson 2013-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/91209-how-to-use-the-kbhit-function-to-poll-for-keypress#answer_100616

When there is no key in the buffer, kbhit will return [] as the key.

See also the examples at http://www.mathworks.com/matlabcentral/fileexchange/30622-non-wait-detection-of-keyboard-input-including-mex-implementation

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genesis 2013-10-23

ok i figured out how it works but now i have this error everytime i run the code. Maximum recursion limit of 1000 reached. Use set(0,'RecursionLimit',N) to change the limit. Be aware that exceeding your available stack space can crash MATLAB and/or your computer. i tried changing the limit from 500 to 1000 but still doesnt work.

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