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    <p>It is not necessary to use <code>ginput</code> and extract the coordinates. This is done automatically by an built-in "listener" in the figure-window. You are correct in assuming that you can use the <code>ButtonDownFcn</code> property on the object (line, lineseries, or other handle graphics object).</p> <p>Try to create at simple line from (0,0) to (1,1):</p> <pre><code>hline = line([0,1],[0,1]) %# create line, save handle in hline </code></pre> <p>Then you can set the <code>ButtonDownFcn</code> to, for instance, a function handle to an anonymous function:</p> <pre><code>set( ... hline, ... 'ButtonDownFcn', @(handle,event)(disp(['You clicked on the line!'])) ... ); </code></pre> <p>Now try to click on the line. It should print the text in the command window.</p> <p>The function needs to be able to receive atleast two arguments: (1) the handle of the object itself (the line) and (2) an "event structure". I believe the second argument is just empty when you use line-objects. But your function still needs to receive atleast these two arguments (even if you do not use them).</p> <p>Read more here: <a href="http://www.mathworks.com/help/techdoc/ref/line_props.html" rel="nofollow">http://www.mathworks.com/help/techdoc/ref/line_props.html</a>.</p> <p>You can also use your own function (a named function in a file):</p> <pre><code>set( ... hline, ... 'ButtonDownFcn', @(handle,event)(namedFunction(handle,event)) ... ); </code></pre> <p>... or you can use a struct-array if you (expectedly) have other arguments beyound those two.</p>
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    1. POHow to select an axes child in MATLAB?
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    1. USOle Thomsen Buus
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    1. COIs there anything like "set('selected', 'on')" That will allow me to manupulate the selected object?
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    2. CO@Audel: The function you define in "ButtonDownFcn" receives the handle in the first argument. You can use that handle to manipulate the clicked object further. To actually make it user-friendly, you can use a context-menu. See http://www.mathworks.com/help/techdoc/ref/uicontextmenu.html for more information.
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    3. COI fixed it! This was pretty much it. Thanks so much
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