MsgCommunicator: Delphi Instant Messaging (IM) SDK
for easy creation of custom messenger system
Checks for the user existing.
function IsUserExisting(UserID: Cardinal): Boolean;
Call IsUserExisting to determine if user with UserID is already registered on the server or not. IsUserExisting sends command to the server, waits for an answer, and returns True if there is such registered user in server database, otherwise returns False.
If you would like to get user details, you can call GetUserInfo.