Campus Livre
gcbo
Returns the object whose callback is currently executing.
Category: Graphics > Graphics Objects
Syntax
obj = gcboReturns the callback object, or an empty object when no callback is running.
Description
Callbacks normally receive the source object as their first argument, which is the cleaner way to reach it. gcbo is the older alternative, useful when a callback is a plain function without arguments. Outside a callback it is empty.
Output arguments
obj- Handle of the object that triggered the callback, or an empty placeholder.
Example
Outside a callback
o = gcbo;
disp(class(o))Output
matlab.graphics.GraphicsPlaceholder