Figure Properties - SERC

Image Properties
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Setting HandleVisibility to off makes handles invisible at all times. This
may be necessary when a callback routine invokes a function that might
potentially damage the GUI (such as evaluating a user-typed string), and so
temporarily hides its own handles during the execution of that function.
When a handle is not visible in its parent’s list of children, it cannot be returned
by functions that obtain handles by searching the object hierarchy or querying
handle properties. This includes get, findobj, gca, gcf, gco, newplot, cla, clf,
and close.
When a handle’s visibility is restricted using callback or off, the object’s
handle does not appear in its parent’s Children property, figures do not appear
in the root’s CurrentFigure property, objects do not appear in the root’s
CallbackObject property or in the figure’s CurrentObject property, and axes
do not appear in their parent’s CurrentAxes property.
You can set the root ShowHiddenHandles property to on to make all handles
visible, regardless of their HandleVisibility settings (this does not affect the
values of the HandleVisibility properties).
Handles that are hidden are still valid. If you know an object’s handle, you can
set and get its properties, and pass it to any function that operates on handles.
HitTest {on} | off
Selectable by mouse click. HitTest determines if the image can become the
current object (as returned by the gco command and the figure CurrentObject
property) as a result of a mouse click on the image. If HitTest is off, clicking
the image selects the object below it (which may be the axes containing it).
Interruptible {on} | off
Callback routine interruption mode. The Interruptible property controls
whether an image callback routine can be interrupted by callback routines
invoked subsequently. Only callback routines defined for the ButtonDownFcn
are affected by the Interruptible property. MATLAB checks for events that
can interrupt a callback routine only when it encounters a drawnow, figure,
getframe, or pause command in the routine.
Parent handle of parent axes, hggroup, or hgtransform
Parent of image object. This property contains the handle of the image object’s
parent. The parent of an image object is the axes, hggroup, or hgtransform
object that contains it.