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RRTcodebaseC

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/**
* Get the ID of contact who wrote the message.
*
* If the ID is equal to DC_CONTACT_ID_SELF (1), the message is an outgoing
* message that is typically shown on the right side of the chat view.
*
* Otherwise, the message is an incoming message; to get details about the sender,
* pass the returned ID to dc_get_contact().
*
* @memberof dc_msg_t
* @param msg The message object.
* @return The ID of the contact who wrote the message, DC_CONTACT_ID_SELF (1)
* if this is an outgoing message, 0 on errors.
*/
uint32_t dc_msg_get_from_id(const dc_msg_t* msg)
{
if (msg==NULL || msg->magic!=DC_MSG_MAGIC) {
return 0;
}
return msg->from_id;
}
/**
* Get the ID of chat the message belongs to.
* To get details about the chat, pass the returned ID to dc_get_chat().
* If a message is still in the deaddrop, the ID DC_CHAT_ID_DEADDROP is returned
* although internally another ID is used.
*
* @memberof dc_msg_t
* @param msg The message object.
* @return The ID of the chat the message belongs to, 0 on errors.
*/
uint32_t dc_msg_get_chat_id(const dc_msg_t* msg)
{
if (msg==NULL || msg->magic!=DC_MSG_MAGIC) {
return 0;
}
return msg->chat_blocked? DC_CHAT_ID_DEADDROP : msg->chat_id;
}
/**
* Get the type of the message.
*
* @memberof dc_msg_t
* @param msg The message object.
* @return One of the @ref DC_MSG constants.
* 0 if the given message object is invalid.
*/
int dc_msg_get_viewtype(const dc_msg_t* msg)
{
if (msg==NULL || msg->magic!=DC_MSG_MAGIC) {
return 0;
}
return msg->type;
}
/**
* Get the state of a message.
*
* Incoming message states:
* - DC_STATE_IN_FRESH (10) - Incoming _fresh_ message. Fresh messages are not noticed nor seen and are typically shown in notifications. Use dc_get_fresh_msgs() to get all fresh messages.
* - DC_STATE_IN_NOTICED (13) - Incoming _noticed_ message. Eg. chat opened but message not yet read - noticed messages are not counted as unread but did not marked as read nor resulted in MDNs. Use dc_marknoticed_chat() or dc_marknoticed_contact() to mark messages as being noticed.
* - DC_STATE_IN_SEEN (16) - Incoming message, really _seen_ by the user. Marked as read on IMAP and MDN may be send. Use dc_markseen_msgs() to mark messages as being seen.
*
* Outgoing message states:
* - DC_STATE_OUT_PREPARING (18) - For files which need time to be prepared before they can be sent,
* the message enters this state before DC_STATE_OUT_PENDING.
* - DC_STATE_OUT_DRAFT (19) - Message saved as draft using dc_set_draft()
* - DC_STATE_OUT_PENDING (20) - The user has send the "send" button but the
* message is not yet sent and is pending in some way. Maybe we're offline (no checkmark).
* - DC_STATE_OUT_FAILED (24) - _Unrecoverable_ error (_recoverable_ errors result in pending messages), you'll receive the event #DC_EVENT_MSG_FAILED.
* - DC_STATE_OUT_DELIVERED (26) - Outgoing message successfully delivered to server (one checkmark). Note, that already delivered messages may get into the state DC_STATE_OUT_FAILED if we get such a hint from the server.
* If a sent message changes to this state, you'll receive the event #DC_EVENT_MSG_DELIVERED.
* - DC_STATE_OUT_MDN_RCVD (28) - Outgoing message read by the recipient (two checkmarks; this requires goodwill on the receiver's side)
* If a sent message changes to this state, you'll receive the event #DC_EVENT_MSG_READ.
*
* If you just want to check if a message is sent or not, please use dc_msg_is_sent() which regards all states accordingly.
*
* The state of just created message objects is DC_STATE_UNDEFINED (0).
* The state is always set by the core-library, users of the library cannot set the state directly, but it is changed implicitly eg.
* when calling dc_marknoticed_chat() or dc_markseen_msgs().
*
* @memberof dc_msg_t
* @param msg The message object.
* @return The state of the message.
*/
int dc_msg_get_state(const dc_msg_t* msg)
{
if (msg==NULL || msg->magic!=DC_MSG_MAGIC) {
return DC_STATE_UNDEFINED;
}
return msg->state;
}
/**