MATLAB Function Reference

ishandle

Determines if values are valid graphics object handles

Syntax

• array = ishandle(h)
  

Description

array = ishandle(h) returns an array that contains 1's where the elements of h are valid graphics handles and 0's where they are not.

Examples

Determine whether the handles previously returned by fill remain handles of existing graphical objects:

• X = rand(4); Y = rand(4);
  h = fill(X,Y,'blue')
  .
  .
  .
  delete(h(3))
  .
  .
  .
  ishandle(h)
  ans =
      1
      1
      0
      1
  

See Also

findobj

Finding and Identifying Graphics Objects for related functions

isglobal

ishold