MSList *linphone_chat_room_get_history(const char *to,LinphoneChatRoom *cr,int nb_message);
void linphone_core_set_messages_flag_read(LinphoneChatRoom *cr,const char *from, int read);
+void linphone_core_delete_history(LinphoneCore *lc,const char *from);
#ifdef __cplusplus
}