dwSize Size, in bytes, of this structure. This member must be initialized before the structure is used. Declarationvar dwSize: DWORD See AlsoInstance PropertiescAxescbTypeSpecificParamsdwDurationdwFlagsdwGaindwSamplePerioddwStartDelaydwTriggerButtondwTriggerRepeatIntervallpEnvelopelpvTypeSpecificParamsrgdwAxesrglDirection