SetChannelVolume method
Implementation
int SetChannelVolume(
int dwIndex, double fLevel, Pointer<GUID> EventContext) =>
ptr.ref.vtable
.elementAt(4)
.cast<
Pointer<
NativeFunction<
Int32 Function(Pointer, Uint32 dwIndex, Float fLevel,
Pointer<GUID> EventContext)>>>()
.value
.asFunction<
int Function(Pointer, int dwIndex, double fLevel,
Pointer<GUID> EventContext)>()(
ptr.ref.lpVtbl, dwIndex, fLevel, EventContext);