Allows the developer to set how often the application will poll a video playback to determine more precisely when a custom event should be executed (see <custom_event>).
The value is in milliseconds.
Note that the more often the polling takes place, the more strain is placed on the end user's machine.
Default value: 250
Child of: <settings>
Parent of: Nothing
Example:
<custom_event_polling_time>100</custom_event_polling_time>