Returns the floating-point value of a field in a Quartz event.
- macOS 10.4+
- Mac Catalyst 13.0+
- Core Graphics
The event to access.
A field in the specified event. Pass one of the constants listed in
A floating point representation of the current value of the specified field.
In cases where the field value is represented within the event by a fixed point number or an integer, the result is scaled to the appropriate range as part of creating the floating point representation.