Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

if ispc && isequal(get(hObject,'BackgroundColor')

Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

    get(0,'defaultUicontrolBackgroundColor'));
    set(hObject,'BackgroundColor','white');
end

Answer 1

[John D'Errico]

When you open a door, you must then close it, else MATLAB will not be happy. Look carefully at the line in question. After all, MATLAB flagged it.

if ispc && isequal(get(hObject,'BackgroundColor')

Count the number of open parens. I see TWO of them.

Next, count the number of close parens. I see only ONE.

Finally, re-read the error message.

[Moulitharan Mariappan]

thank you so much