Gets the current word bounds of the hover.
If begin is non-null, it will be set to the start position of the current word being hovered.
If end is non-null, it will be set to the end position for the current word being hovered.
a #GtkTextIter
true if the marks are still valid and begin or end was set.
Gets the current word bounds of the hover.
If begin is non-null, it will be set to the start position of the current word being hovered.
If end is non-null, it will be set to the end position for the current word being hovered.