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Change "Edit" uicontrols background (how to set a structure array element to a specific value?)

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Csaba
Csaba 2020-8-11
评论： Walter Roberson 2020-8-13
I have a row of "edit" uicontrols. The handles of these are in a vector (e.g. in c). I want to change the background color of each "edit" uicontrol.
hfig=figure(1);
clf;
c(1) = uicontrol(hfig...
,'Style','edit'...
,'Position',[20 20 60 20]...
);
c(2) = uicontrol(hfig...
,'Style','edit'...
,'Position',[20 50 60 20]...
);
If I try to change the background color
c.BackgroundColor= [1 0 0]
c(:).BackgroundColor= [1 0 0]
gives the same error:
"Expected one output from a curly brace or dot indexing expression, but there were 2 results."
Is it possible to do it this or similar way, or just the for loop is the solution? I would be happy if logical indexing would work changing just special edit boxes' Foreground!

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采纳的回答

Walter Roberson
Walter Roberson 2020-8-11
set(c, 'BackGroundCOlor', [1 0 0])
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Csaba
Csaba 2020-8-12
Sorry Walter, it does not work on structures. It also works on objects, but does not on user definied structures.
After
arrayfun(@(V) setfield(V, 'd', 22), a) %works on structs
a.d
ans =
1
ans =
3
Walter Roberson
Walter Roberson 2020-8-13
a = arrayfun(@(V) setfield(V, 'd', 22), a);
setfield() returns a new structure with the changes, but does not change any variable passed into it.
setfield() works to change graphics objects without assignment because graphics objects are handle objects.

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