<vizact>.addCallback

Vizard 7 » Command Index » Vizard modules » vizact » <vizact>.addCallback

7.6

event

The event ID

func

The function to call when the event is triggered.

priority = 0

The priority to register the callback function with.

This command will registers a generic callback function for the specified event ID. The function will be passed the original event arguments.

A vizact.EventFunction object with the following methods:

Method	Description
<event>.setEnabled(val)	Enable/Disable the event function. The associated function will not be called while the event function is disabled. viz.TOGGLE can be used to toggle the state. Event functions are initially enabled.
<event>.getEnabled()	Get the enabled state of the event function.
<event>.remove()	Permanently unregister the event function.

def onKeyDown(key):
print('key down',key)

vizact.addCallback(viz.KEYDOWN_EVENT,onKeyDown)