[ Version ( since = "1.0" ) ]
public static ulong register_func (AlphaFunc func)
Registers a global alpha function and returns its logical id to be used by set_mode or by Animation.
There is no direct replacement for this function.
Use set_progress_func on each specific Timeline instance
The logical id is always greater than ANIMATION_LAST.
func | |
data |
user data to pass to |
the logical id of the alpha function |