GUI, Handles saved in variable

well in simple, i wrote:

A=['handles.',get(hObject,'Tag')];
set(A,'Backgroundcolor',[0,1,0]);

or

A='handles.pushbutton1';
set(A,'Backgroundcolor',[0,1,0]);

and function 'set' cannot read that A, can you help me? Uncle MATLAB says :

    Error using set
    Value must be a handle

Answer 1

[Stephen23]

Why are you trying to construct a string? If you have a structure, then do this:

 A = handles.(get(hObject,'Tag'));

And read this:

http://www.mathworks.com/help/matlab/matlab_prog/generate-field-names-from-variables.html

[Michal Demjan]

Oh i didnt realized that it is struct. Thanks a lot!

Answer 2

[Image Analyst]

Try

handles.pushbutton1.BackgroundColor = [0, 1, 0];