Sets 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
The new value of the specified field.
In cases where the field’s value is represented within the event by a fixed point number or integer, the
value parameter is scaled as needed and converted to the appropriate type.