gint (*copy_msg) (Folder *folder,
FolderItem *dest,
MsgInfo *msginfo);
gint (*copy_msgs) (Folder *folder,
FolderItem *dest,
MsgInfoList *msglist,
gint (*copy_msg) (Folder *folder,
FolderItem *dest,
MsgInfo *msginfo);
gint (*copy_msgs) (Folder *folder,
FolderItem *dest,
MsgInfoList *msglist,