UserSigExpiredCallback

introduction

Callback for user signature expired

If you receive the UserSigExpiredCallback callback, the UserSig that you use for login has expired. In this case, you need to use a new UserSig to log in again. If you continue to use the expired UserSig, the IM SDK will be in an infinite login loop.

Returned template

void UserSigExpiredCallback(string user_data);

Return value details

name type description
user_data string User-defined data transfered by ImSDK without any processing

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