any function like kbhit

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gang gyoo jin
gang gyoo jin on 24 Jun 2016
Edited: armando herculano on 1 Apr 2024
Hi all Is there any function like kbhit(in C) in matlab. I want to use that function inside the for loop to terminate the loop. Thanks in advance
for i=1:100000
if kbhit == 'q'
break;
end
end

Accepted Answer

Walter Roberson
Walter Roberson on 24 Jun 2016
  1 Comment
Andrew Diamond
Andrew Diamond on 8 Dec 2018
kbhit oesn't seem to work in Matlab 2017b. I get this error message:
Error using set
The name 'Userdata' is not an accessible property for an instance of class
'com.mathworks.mde.cmdwin.CmdWin'.
That occurs in the init, i.e. kbhit('init') in:
set(KBHIT_h_cw, 'userdata', []);
I don't see a property method/accessor for "userdata"

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More Answers (3)

Bin Yang
Bin Yang on 21 Nov 2019
Replace your kbhit.m with the one attached here, it should work. The original version tried to store key event data in the 'Userdata' property of the command window object, however it is no longer viable in later Matlab versions. What I did was just to asign key event data directly to a global variable.

gang gyoo jin
gang gyoo jin on 24 Jun 2016
Many thanks. It works.

armando herculano
armando herculano on 1 Apr 2024
Edited: armando herculano on 1 Apr 2024
for MATLAB:
while true
ch = getkey
if ch != 165 break; end
end
----------------------
for OCTAVE
while true
if kbhit(1) break; end
end
-----------------------------
while true
% 165 ASCII code for null
if kbhit(1) != 165 break end
end
--------------------------------------

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