findobj does not work

9 次查看（过去 30 天）

Rocky Zhang 2020-3-4

评论： Rocky Zhang 2020-3-5

When the gui main program is running, I use findobj('Name', 'Gui_Main_Program');

This command does not work in timer callback function. It neither work in Matlab command window.

I see everyone says do not use global variables, so I put data in gui_main_hObject.UserData.

Thank you.

Star Strider 2020-3-4

The first argument to findobj must the the handle to the object you want to use it with.

Walter Roberson 2020-3-4

No, https://www.mathworks.com/help/matlab/ref/findobj.html shows multiple syntaxes in which there is no object passed

Walter Roberson 2020-3-4

Either there is no object with exactly that name, or else the handle of it is not visible.

What shows up for

get(findall('type', 'figure'), 'Name')

Walter Roberson 2020-3-4

get(findall(0, 'type', 'figure'), 'Name')

I keep forgetting that findall requires a first parameter

Rocky Zhang 2020-3-5

This one works.

Thank you Walter!

MATLAB Graphics Graphics Objects Specifying Target for Graphics Output

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R2018b

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