get_selection_bounds

Returns true if some text is selected; places the bounds of the selection in start and end (if the selection has length 0, then start and end are filled in with the same value).

start and end will be in ascending order. If start and end are NULL, then they are not filled in, but the return value still indicates whether text is selected.

Parameters:

this	a TextBuffer a TextBuffer
start	iterator to initialize with selection start
end	iterator to initialize with selection end

Returns:

whether the selection has nonzero length