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 numeric, logical, char, cell, struct, and function handle classes return false. Use isa to test for any of these types.

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

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Thread-Based Environment

Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.

Version History

Introduced before R2006a