c_gtk_text_buffer_get_slice

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
gchar* function(GtkTextBuffer* buffer, GtkTextIter* start, GtkTextIter* end, gboolean includeHiddenChars) c_gtk_text_buffer_get_slice;

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