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isobject

Determine if input is MATLAB object

Syntax

tf = isobject(A)

Description

tf = isobject(A) returns true if A is an object of a MATLAB® class. Otherwise, it returns false.

Instances of MATLAB fundamental classes return false. Use isa to test for any of these types. See Fundamental MATLAB Classes for more on these classes.

Examples

Define the following MATLAB class:

classdef button < handle
   properties
      UiHandle
   end
   methods
      function obj = button(pos)
         obj.UiHandle = uicontrol('Position',pos,...
            'Style','pushbutton');
      end
   end
end

Test for MATLAB objects.

h = button([20 20 60 60]);
isobject(h)
ans =

  logical

   1
isobject(h.UiHandle)
ans =

  logical

   1

Create an object that is a MATLAB numeric type:

a = pi;
isobject(a)
  logical
     0
isa(a,'double')
ans =

  logical

   1

Related Examples

See Also

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Introduced before R2006a

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