speak method
Implementation
int
speak(Pointer<Utf16> Text, int Flags, Pointer<Int32> StreamNumber) =>
(ptr.ref.vtable + 28)
.cast<
Pointer<
NativeFunction<
Int32 Function(Pointer, Pointer<Utf16> Text,
Int32 Flags, Pointer<Int32> StreamNumber)>>>()
.value
.asFunction<
int Function(Pointer, Pointer<Utf16> Text, int Flags,
Pointer<Int32> StreamNumber)>()(
ptr.ref.lpVtbl, Text, Flags, StreamNumber);