canPoll

open fun canPoll(): Boolean

Checks if @stream is actually pollable. Some classes may implement #GPollableOutputStream but have only certain instances of that class be pollable. If this method returns false, then the behavior of other #GPollableOutputStream methods is undefined.

For any given stream, the value returned by this method is constant; a stream cannot switch from pollable to non-pollable or vice versa.

Return

true if @stream is pollable, false if not.

Since

2.28