If mouse click in this rectangle, display rectangle in green

Hi!

I´m writing a psychological experiment (at least I try to), in which students shall click on a rectangle in my figure (on the screen). If they clicked on the correct rectangle the rectangle shall become green and it should be counted as a hit.

This was my code (which did not work):

if ('WindowButtonDownFcn', rectangle('Position', [0.7,0.4,0.1,0.1], 'facecolor', 'w'))
disp(rectangle('Position', [0.7,0.4,0.1,0.1], 'facecolor', 'g'))

Thanks for help!!

[Jan]

This code is very weird.

Answer 1

[Doug Hull]

You need to set callbacks on the rectangle.

http://blogs.mathworks.com/videos/2008/01/28/practical-example-adding-callbacks-to-a-plot/

This shows setting callbacks, the lessons should be similar.

Answer 2

[Iris Müller Iris Müller]

Oh cool! it works!! Thankk you! :)

Answer 3

[Iris Müller Iris Müller]

I have one more question: Now, regardless of where the subjects click, the rectangle becomes green (and the other rectangles become red). What I want is: 1 mouse click per trial. if they click on the correct rectangle only this shall become green to tell the subjects they made a hit. And the other rectangles shall remain white. If they click on another rectangle it shall become red. Moreover, I would like Matlab to report on which rectangles they clicked (something like 1=hit, 0=wrong rectanlge).

Thank you again!!

[Jan]

The conventions in this forum are to accept an asnwer, if it has solved the problem. For a new question, a new thread is created. Posting the working solution is appreciated.