Check if database connection is still active

Hello Everyone !!

A) Say I am connected to MySQL via internet (using Native Access).
and somehow my internet connection is lost for some minutes and then again connected !! What would happen then ?? is my connection to database still active ?? or lost ??
NOTE that I have not called Hcloseconnection ()

B) Is there anything like HCheckConnection(connection_variable) which would return true if a connection to a specific database is still active and false if the connection is lost ..
In other word How do We know if the database handshake is still there.

Thanks !!