Returns the next #GtkSourceMark in the buffer or %NULL if the mark was not added to a buffer. If there is no next mark, %NULL will be returned.
If @category is %NULL, looks for marks of any category.
a string specifying the mark category, or %NULL.
Return: the next #GtkSourceMark, or %NULL.
2.2
See Implementation
Returns the next #GtkSourceMark in the buffer or %NULL if the mark was not added to a buffer. If there is no next mark, %NULL will be returned.
If @category is %NULL, looks for marks of any category.