How to use windowkeypressfcn

Question

Brenda FOCHIVÉ 2019-5-9

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/461166-how-to-use-windowkeypressfcn

评论： Brenda FOCHIVÉ 2019-5-10

I have written a 5code that draws a graph. I want that each time the user clicks on escape the graph comes back to its original state. This is my code:

Figure('windowkeypressfcn',@keyP)
Function keyP(source, event)
KeyPressed=eventData.key;
If strcmp(KeyPressed,'escape')
View (3)
end
end

When I run it shows errors. It says The class "eventdata" is undefined. Perhaps java is not running

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Answer 1

Kevin Phung 2019-5-9

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/461166-how-to-use-windowkeypressfcn#answer_374305

编辑：Kevin Phung 2019-5-9

在 MATLAB Online 中打开

function keyP(source, event)
KeyPressed=event.Key;
if strcmp(KeyPressed,'escape')
    view(3)
end
end

It's as the error says. You never defined a variable eventData. Your input is 'event'

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Brenda FOCHIVÉ 2019-5-10

I have edited it but when I click on escape key the function do not run. I instead see the command window pop up. It's like the figure do not have the focus again.

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