addMonths method
Implementation
void addMonths(int months) {
final hr =
ptr.ref.vtable
.elementAt(41)
.cast<
Pointer<
NativeFunction<
HRESULT Function(
VTablePointer lpVtbl, Int32 months)>>>()
.value
.asFunction<int Function(VTablePointer lpVtbl, int months)>()(
ptr.ref.lpVtbl, months);
if (FAILED(hr)) throwWindowsException(hr);
}