add_event_handler#

ImageGraphic.add_event_handler(*args)#

Register an event handler. Can also be used as a decorator.

Parameters:

callback (callable, the first argument) – Event handler, must accept a single event argument
*types (strings) –
event types, ex: “click”, “data”, “colors”, “pointer_down”

supported_events will return a tuple of all event type strings that this graphic supports. See the user guide in the documentation for more information on events.

Example

def my_handler(event):
    print(event)

graphic.add_event_handler(my_handler, "pointer_up", "pointer_down")

Decorator usage example:

@graphic.add_event_handler("click")
def my_handler(event):
    print(event)

Examples#