typedef struct tagMIXERLINEA {
    DWORD       cbStruct;               
    DWORD       dwDestination;          
    DWORD       dwSource;               
    DWORD       dwLineID;               
    DWORD       fdwLine;                
    DWORD_PTR   dwUser;                 
    DWORD       dwComponentType;        
    DWORD       cChannels;              
    DWORD       cConnections;           
    DWORD       cControls;              
    CHAR        szShortName[MIXER_SHORT_NAME_CHARS];
    CHAR        szName[MIXER_LONG_NAME_CHARS];
    struct {
        DWORD       dwType;                 
        DWORD       dwDeviceID;             
        WORD        wMid;                   
        WORD        wPid;                   
        MMVERSION   vDriverVersion;         
        CHAR        szPname[MAXPNAMELEN];   
    } Target;
} MIXERLINEA, *PMIXERLINEA, *LPMIXERLINEA;

typedef LPMIXERLINEA LPMIXERLINE;