Documentation

This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English version of the page.

Note: This page has been translated by MathWorks. Click here to see
To view all translated materials including this page, select Country from the country navigator on the bottom of this page.

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™.

See Also

| |

Introduced before R2006a

Was this topic helpful?