function ObjList=findall(HandleList,varargin)

%FINDALL find all objects.

%   ObjList=FINDALL(HandleList) returns the list of all objects 

%   beneath the Handles passed in.  FINDOBJ is used and all objects

%   including those with HandleVisibility set to 'off' are found.

%   FINDALL is called exactly as FINDOBJ is called.  For instance,

%   ObjList=findall(HandleList,Param1,Val1,Param2,Val2, ...).

%  

%   Example:

%     plot(1:10)

%     xlabel xlab

%     a=findall(gcf)

%     b=findobj(gcf)

%     c=findall(b,'Type','text') % return the xlabel handle twice

%     d=findobj(b,'Type','text') % can't find the xlabel handle

%

%   See also ALLCHILD, FINDOBJ.

%   Loren Dean

%   Copyright 1984-2017 The MathWorks, Inc.

if ~isa(HandleList,'matlab.graphics.Graphics') && nnz(~ishghandle(HandleList)) 

    error(message('MATLAB:findall:InvalidHandles'));

end 

rootobj = 0; 

if ~isempty( HandleList ) 

    rootobj = groot; 

end 

%Set up an onCleanup object that would restore the root global state after

%we do a findobj. We are explicitly making sure that there are no

%nested/anonymous functions involved here because findall executed through

%a timer callback is causing unexpected failure modes with onCleanup.

%Making a sub-function return an anonymous function handle is safer here.

c = onCleanup(showHiddenHandlesToFindAllHandles(rootobj)); 

try 

  ObjList=findobj(HandleList,varargin{:}); 

catch ex %#ok

  ObjList=-1;

end 

if isequal(ObjList,-1) 

  error(message('MATLAB:findall:InvalidParameter'));

end