For complete examples and data files, please go to https://github.com/aspose-page/Aspose.Page-for-C
// Create new XPS Document
auto doc = System::MakeObject<XpsDocument>();
// Initialize List of XpsGradentStop
System::SharedPtr<System::Collections::Generic::List<System::SharedPtr<XpsGradientStop>>> stops = System::MakeObject<System::Collections::Generic::List<System::SharedPtr<XpsGradientStop>>>();
stops->Add(doc->CreateGradientStop(doc->CreateColor(255, 244, 253, 225), 0.0673828f));
stops->Add(doc->CreateGradientStop(doc->CreateColor(255, 251, 240, 23), 0.314453f));
stops->Add(doc->CreateGradientStop(doc->CreateColor(255, 252, 209, 0), 0.482422f));
stops->Add(doc->CreateGradientStop(doc->CreateColor(255, 241, 254, 161), 0.634766f));
stops->Add(doc->CreateGradientStop(doc->CreateColor(255, 53, 253, 255), 0.915039f));
stops->Add(doc->CreateGradientStop(doc->CreateColor(255, 12, 91, 248), 1.f));
// Create new path by defining geometery in abbreviation form
System::SharedPtr<XpsPath> path = doc->AddPath(doc->CreatePathGeometry(u"M 10,210 L 228,210 228,300 10,300"));
path->set_RenderTransform(doc->CreateMatrix(1.f, 0.f, 0.f, 1.f, 20.f, 70.f));
path->set_Fill(doc->CreateLinearGradientBrush(System::Drawing::PointF(10.f, 0.f), System::Drawing::PointF(228.f, 0.f)));
(System::DynamicCast<Aspose::Page::Xps::XpsModel::XpsGradientBrush>(path->get_Fill()))->get_GradientStops()->AddRange(stops);
// Save resultant XPS document
doc->Save(outDir() + u"AddHorizontalGradient_out.xps");