void linphone_chat_room_set_user_data(LinphoneChatRoom *cr, void * ud);
void * linphone_chat_room_get_user_data(LinphoneChatRoom *cr);
+LinphoneChatMessageState linphone_chat_message_get_state(const LinphoneChatMessage* message);
const char* linphone_chat_message_state_to_string(const LinphoneChatMessageState state);
LinphoneChatMessage* linphone_chat_message_clone(const LinphoneChatMessage* message);
void linphone_chat_message_set_from(LinphoneChatMessage* message, const LinphoneAddress* from);
void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp);
int linphone_core_get_video_dscp(const LinphoneCore *lc);
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+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);
#ifdef __cplusplus
}