Deleting a rectangle created in one function from another function

Question

Jason 2017-3-11

编辑： Jason 2017-3-11

If I create a rectangle on an image from one function via:

function1(handles)
axes(handles.axes1);
hr=rectangle('Position',position,'EdgeColor','y')

How do I delete it from another function. I have tried both

function2(handles)
hl = findall(handles.axes1, 'type', 'line')
h2=( findobj(handles.axes1, 'type', 'line') )
delete(hl);
delete(h2)
drawnow

But both h1 & h2 are empty:

hl = 
    0×0 empty GraphicsPlaceholder array.
h2 = 
    0×0 empty GraphicsPlaceholder array.

Jason 2017-3-11

编辑：Jason 2017-3-11

Done it.

hl = findall(handles.axes1, 'type', 'rectangle')

Answer 1

Jason 2017-3-11

编辑：Jason 2017-3-11

hl = findall(handles.axes1, 'type', 'rectangle')