forward_to_tag_toggle

Moves forward to the next toggle (on or off) of the tag, or to the next toggle of any tag if tag is null.

If no matching tag toggles are found, returns false, otherwise true. Does not return toggles located at this, only toggles after this. Sets this to the location of the toggle, or to the end of the buffer if no toggle is found.

Parameters:

this	a `GtkTextIter`
tag	a `GtkTextTag`

Returns:

whether we found a tag toggle after this