Unity
Chat SDK

var config = new SdkConfig {
  sdk_config_config_file_path =
    Application.persistentDataPath + "/TIM-Config",
  sdk_config_log_file_path =
    Application.persistentDataPath + "/TIM-Log"
};
TencentIMSDK.Init(sdkAppID, config);

TencentIMSDK.Login(userID, userSig,
  (int code, string desc, string data, string userData) => {
    // Handle the login result.
  });

var messageId = new StringBuilder(128);
TencentIMSDK.MsgSendMessage(
  recipientID, TIMConvType.kTIMConv_C2C,
  message, messageId,
  (int code, string desc, string data, string userData) => {
    // Update your message state from the result.
  });