GtkSourceCompletionProviderIface.getStartIter

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
struct GtkSourceCompletionProviderIface
extern (C)
int function(GtkSourceCompletionProvider* provider, GtkSourceCompletionContext* context, GtkSourceCompletionProposal* proposal, GtkTextIter* iter) getStartIter;

Meta