#include#includeMMRESULTrc;//Returncode.HMIXERhMixer;//MixerhandleusedinmixerAPIcalls.MIXERCONTROLmxc;//Holdsthemixercontroldata.MIXERLINEmxl;//Holdsthemixerlinedata.MIXERLINECONTROLSmxlc;//Obtainsthemixercontrol.//Openthemixer.Thi