[ CCode ( has_target = false ) ]
[ Version ( since = "1.0" ) ]
public delegate bool ProgressFunc (Value a, Value b, double progress, Value retval)
Prototype of the progress function used to compute the value between the two ends a and b of an interval
depending on the value of progress.
The Value in retval is already initialized with the same type as a and b
.
This function will be called by Interval if the type of the values of the interval was registered using register_progress_func.
| a |
the initial value of an interval |
| b |
the final value of an interval |
| progress |
the progress factor, between 0 and 1 |
| retval |
the value used to store the progress |
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