- Release Notes
- Product Introduction
- Purchase Guide
- Free Demos
- Get Started
- Console Guide
- SDK Documentation
- SDK Download
- Quick Integration (Including UI Library)
- General Integration (No UI Library)
- Update Logs (Web & Mini Programs)
- Update Log (Native)
- Update Log (Unity)
- Update Log (Electron)
- Legacy API Tutorials
- Client APIs
- Server APIs
- Generating UserSig
- RESTful APIs
- RESTful API Overview
- RESTful API List
- Account Management
- One-to-One Messages
- Profile Management
- Pushing to All Users
- Relationship Chain Management
- Recent Contacts
- Group Management
- Getting All Groups in an App
- Creating a Group
- Getting Group Profiles
- Getting Group Member Profiles
- Modifying the Profile of a Group
- Adding Group Members
- Deleting Group Members
- Modifying the Profile of a Group Member
- Disbanding a Group
- Getting the Groups a User Has Joined
- Querying the Roles of Users in a Group
- Bulk Muting and Unmuting
- Getting the List of Muted Group Members
- Sending Ordinary Messages in a Group
- Sending System Messages in a Group
- Recalling Group Messages
- Changing Group Owner
- Importing a Group Profile
- Importing Group Messages
- Importing Group Members
- Setting the Unread Message Count of a Member
- Recalling Messages Sent by a Specified User
- Pulling Historical Messages
- Getting the Number of Online Users in an Audio-Video Group
- Getting Custom Group Attributes
- Modifying Custom Group Attributes
- Clearing Custom Group Attributes
- Resetting Custom Group Attributes
- Global Mute Management
- Operations Management
- Third-Party Callbacks
- Third-Party Callback Overview
- Callback Command List
- Online Status Callbacks
- Relationship Chain Callbacks
- One-to-One Message Callbacks
- Group System Callbacks
- Callback Before Creating a Group
- Callback After Creating a Group
- Callback Before Accepting a Request to Join a Group
- Callback Before Accepting a Request to Add a User to a Group
- Callback After a User Joins a Group
- Callback After a User Leaves a Group
- Callback Before Sending a Group Message
- Callback After Sending a Group Message
- Callback After a Group Is Full
- Callback After Disbanding a Group
- Callback After Modifying Group Profile
- Callback Mutual Authentication Configuration Guide
- Best Practices
- FAQs
- Security Compliance Certification
- Smooth Migration Solutions
- Error Codes
- Contact Us
- Release Notes
- Product Introduction
- Purchase Guide
- Free Demos
- Get Started
- Console Guide
- SDK Documentation
- SDK Download
- Quick Integration (Including UI Library)
- General Integration (No UI Library)
- Update Logs (Web & Mini Programs)
- Update Log (Native)
- Update Log (Unity)
- Update Log (Electron)
- Legacy API Tutorials
- Client APIs
- Server APIs
- Generating UserSig
- RESTful APIs
- RESTful API Overview
- RESTful API List
- Account Management
- One-to-One Messages
- Profile Management
- Pushing to All Users
- Relationship Chain Management
- Recent Contacts
- Group Management
- Getting All Groups in an App
- Creating a Group
- Getting Group Profiles
- Getting Group Member Profiles
- Modifying the Profile of a Group
- Adding Group Members
- Deleting Group Members
- Modifying the Profile of a Group Member
- Disbanding a Group
- Getting the Groups a User Has Joined
- Querying the Roles of Users in a Group
- Bulk Muting and Unmuting
- Getting the List of Muted Group Members
- Sending Ordinary Messages in a Group
- Sending System Messages in a Group
- Recalling Group Messages
- Changing Group Owner
- Importing a Group Profile
- Importing Group Messages
- Importing Group Members
- Setting the Unread Message Count of a Member
- Recalling Messages Sent by a Specified User
- Pulling Historical Messages
- Getting the Number of Online Users in an Audio-Video Group
- Getting Custom Group Attributes
- Modifying Custom Group Attributes
- Clearing Custom Group Attributes
- Resetting Custom Group Attributes
- Global Mute Management
- Operations Management
- Third-Party Callbacks
- Third-Party Callback Overview
- Callback Command List
- Online Status Callbacks
- Relationship Chain Callbacks
- One-to-One Message Callbacks
- Group System Callbacks
- Callback Before Creating a Group
- Callback After Creating a Group
- Callback Before Accepting a Request to Join a Group
- Callback Before Accepting a Request to Add a User to a Group
- Callback After a User Joins a Group
- Callback After a User Leaves a Group
- Callback Before Sending a Group Message
- Callback After Sending a Group Message
- Callback After a Group Is Full
- Callback After Disbanding a Group
- Callback After Modifying Group Profile
- Callback Mutual Authentication Configuration Guide
- Best Practices
- FAQs
- Security Compliance Certification
- Smooth Migration Solutions
- Error Codes
- Contact Us
Tencent Cloud IM Cross-platform C APIs
Download link for each platform:
- IM SDK for Windows, Quick Integration with IM SDK for Windows, and Demo Quick Start. IM SDK for Windows supports 32-bit and 64-bit operating systems.
- IM SDK for iOS
- IM SDK for Mac
- IM SDK for Android
There are two types of callbacks. One is the asynchronous return from API calls, and the other is the notification pushed by the backend. The logic thread for callback triggering in the IM SDK may not be the same as the thread for API calls.
On the Windows platform, if you call the TIMInit API to initialize the IM SDK after a UI message loop is created and the thread for calling the TIMInit API is the main UI thread, the IM SDK will throw the callback to the main UI thread to call.
Note：If the parameter string of the API contains Chinese characters, use UTF-8 encoding.
Event callback APIs
| API | Description |
|---|---|
| TIMAddRecvNewMsgCallback | Adds the callback for receiving new messages |
| TIMRemoveRecvNewMsgCallback | Deletes the callback for receiving new messages |
| TIMSetMsgReadedReceiptCallback | Sets the callback for message read receipts |
| TIMSetMsgRevokeCallback | Sets the callback for message recalls |
| TIMSetMsgElemUploadProgressCallback | Sets the callback for the upload progress of message element files |
| TIMSetGroupTipsEventCallback | Sets the callback for group system messages |
| TIMSetConvEventCallback | Sets the callback for conversation events |
| TIMSetNetworkStatusListenerCallback | Sets the callback for network connection status |
| TIMSetKickedOfflineCallback | Sets the callback for notifications of forced logout |
| TIMSetUserSigExpiredCallback | Sets the callback for user ticket expiration |
| TIMSetOnAddFriendCallback | Sets the callback for adding friends |
| TIMSetOnDeleteFriendCallback | Sets the callback for deleting friends |
| TIMSetUpdateFriendProfileCallback | Sets the callback for updating friends' profiles |
| TIMSetFriendAddRequestCallback | Sets the callback for friend requests |
| TIMSetLogCallback | Sets the callback for logs |
| TIMSetMsgUpdateCallback | Sets the callback for message update notifications returned after messages are modified in the cloud |
IM SDK initialization APIs
| API | Description |
|---|---|
| TIMInit | Initializes the IM SDK |
| TIMUninit | Uninstalls the IM SDK |
| TIMGetSDKVersion | Gets IM SDK version number |
| TIMSetConfig | Sets extra user configurations |
Login and logout APIs
| API | Description |
|---|---|
| TIMLogin | Logs in |
| TIMLogout | Logs out |
Conversation APIs
| API | Description |
|---|---|
| TIMConvCreate | Creates a conversation |
| TIMConvDelete | Deletes a conversation |
| TIMConvGetConvList | Gets the conversation list of recent contacts |
| TIMConvSetDraft | Sets the draft of a conversation |
| TIMConvCancelDraft | Deletes the draft of a conversation |
Message APIs
| API | Description |
|---|---|
| TIMMsgSendNewMsg | Sends a new message |
| TIMMsgReportReaded | Marks a message as read |
| TIMMsgRevoke | Recalls a message |
| TIMMsgFindByMsgLocatorList | Locates a message of a conversation by using the message locator |
| TIMMsgImportMsgList | Imports a message list to a conversation |
| TIMMsgSaveMsg | Saves a custom message |
| TIMMsgGetMsgList | Gets the messages of a conversation |
| TIMMsgDelete | Deletes the messages of a conversation |
| TIMMsgDownloadElemToPath | Downloads message elements (such as image, video, audio, and file) to a path |
| TIMMsgBatchSend | Sends a message to multiple users at a time, but not to groups |
Group APIs
| API | Description |
|---|---|
| TIMGroupCreate | Creates a group |
| TIMGroupDelete | Deletes a group |
| TIMGroupJoin | Requests to join a group |
| TIMGroupQuit | Quits a group |
| TIMGroupInviteMember | Invites someone to join a group |
| TIMGroupDeleteMember | Removes a member from a group |
| TIMGroupGetJoinedGroupList | Gets the list of groups that a user has joined |
| TIMGroupGetGroupInfoList | Gets group information |
| TIMGroupModifyGroupInfo | Modifies group information |
| TIMGroupGetMemberInfoList | Gets group member information |
| TIMGroupModifyMemberInfo | Modifies group member information |
| TIMGroupGetPendencyList | Gets the pending group request list. Pending group requests are those that are not handled, for example, requests to join a group or to invite a user to join a group. |
| TIMGroupReportPendencyReaded | Reports that a pending group request is read |
| TIMGroupHandlePendency | Handles pending group requests |
User profile APIs
| API | Description |
|---|---|
| TIMProfileGetUserProfileList | Gets the profiles of specified users |
| TIMProfileModifySelfUserProfile | Modifies one’s own profile |
Relationship chain APIs
| API | Description |
|---|---|
| TIMFriendshipGetFriendProfileList | Gets friend lists |
| TIMFriendshipAddFriend | Adds friends |
| TIMFriendshipHandleFriendAddRequest | Handles friend requests |
| TIMFriendshipModifyFriendProfile | Updates friends’ profiles (such as remarks) |
| TIMFriendshipDeleteFriend | Deletes friends |
| TIMFriendshipCheckFriendType | Checks the friend type (one-way or two-way) |
| TIMFriendshipCreateFriendGroup | Creates a friend list |
| TIMFriendshipGetFriendGroupList | Gets the information of a friend list |
| TIMFriendshipModifyFriendGroup | Modifies a friend list |
| TIMFriendshipDeleteFriendGroup | Deletes a friend list |
| TIMFriendshipAddToBlackList | Adds a user to the blocklist |
| TIMFriendshipGetBlackList | Gets the blocklist |
| TIMFriendshipDeleteFromBlackList | Removes a user from the blocklist |
| TIMFriendshipGetPendencyList | Gets the pending friend request list |
| TIMFriendshipDeletePendency | Deletes a pending friend request |
| TIMFriendshipReportPendencyReaded | Reports that a pending friend request is read |
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