Aspose.Slides for CPP 20.11 Release Notes

Supported Platforms

  • Aspose.Slides for C++ for Windows x64 (Microsoft Visual C++).
  • Aspose.Slides for C++ for Windows x86 (Microsoft Visual C++).
  • Aspose.Slides for C++ for Linux (Clang).

New Features and Enhancements

Key Summary Category
SLIDESNET-36008 Support to verify the presentation password Feature
SLIDESNET-42201 Ability to test presentation password to open Feature
SLIDESNET-38917 Ability to test presentation password to modify Feature
SLIDESNET-42020 Support for Map type chart in Aspose.Slides Feature

Other Improvements and Changes

Key Summary Category
SLIDESCPP-2412 Use Aspose.Slides for .NET 20.11 features Enhancement
SLIDESCPP-2652 Support Aspose.Slides for C++ library for x86 platform Enhancement
SLIDESCPP-2653 Improve font handling in Linux environment (20.11) Enhancement

Public API Changes

Checking password to open via IPresentationInfo interface

CheckPassword method has been added to IPresentationInfo interface and PresentationInfo class. This method allows checking whether a presentation is protected by a password to open.

Method declaration:

/// <summary>
/// Checks whether a password is correct for a presentation protected with open password.
/// </summary>
/// <param name="password">The password to check.</param>
/// <returns>
/// True if the presentation is protected with open password and the password is correct and false otherwise.
/// </returns>
/// <remarks>
/// When the password is null or empty, this method returns false.
/// </remarks>
virtual bool CheckPassword(System::String password) = 0;

The example below demonstrates how to check a password to open a presentation:

auto info = PresentationFactory::get_Instance()->GetPresentationInfo(u"pres.pptx");
bool isPasswordCorrect = info->CheckPassword(u"my_password");

get_KeepTextFlat() and set_KeepTextFlat() methods have been added to ITextFrameFormat interface

New methods get_KeepTextFlat() and set_KeepTextFlat() have been added to ITextFrameFormat interface.

Using this property allows to keep text out of 3D scene entirely.

Property declaration:

/// <summary>
/// Returns or set keeping text out of 3D scene entirely.
/// Read <see cref="bool"></see>.
/// </summary>
virtual bool get_KeepTextFlat() = 0;
/// <summary>
/// Returns or set keeping text out of 3D scene entirely.
/// Write <see cref="bool"></see>.
/// </summary>
virtual void set_KeepTextFlat(bool value) = 0;

The code snippet below demonstrates setting keep text out of 3D scene:

auto pres = System::MakeObject<Presentation>(u"Presentation.pptx");
auto shape = System::DynamicCast_noexcept<Aspose::Slides::AutoShape>(pres->get_Slides()->idx_get(0)->get_Shapes()->idx_get(0));
if (shape != nullptr)

Partial support of Map charts has been added

Partial support of Map charts has been added. It means that you can create, edit, and save charts. Rendering options are limited since Microsoft Office uses Bing data provider for generating chart image. So any changes related to the Map charts made within Aspose.Slides won’t affect the rendering results. If the chart was loaded from an input file, the cached image from the PPTX package will be used for rendering purposes.

Following enum values have been added:


Following example shows how to create a map chart from scratch:

auto presentation = System::MakeObject<Presentation>();

// Create empty chart
auto chart = presentation->get_Slides()->idx_get(0)->get_Shapes()->AddChart(Aspose::Slides::Charts::ChartType::Map, 50.0f, 50.0f, 500.0f, 400.0f, false);

auto wb = chart->get_ChartData()->get_ChartDataWorkbook();

// Add series and few data points
auto series = chart->get_ChartData()->get_Series()->Add(Aspose::Slides::Charts::ChartType::Map);
series->get_DataPoints()->AddDataPointForMapSeries(wb->GetCell(0, u"B2", System::ObjectExt::Box<int32_t>(5)));
series->get_DataPoints()->AddDataPointForMapSeries(wb->GetCell(0, u"B3", System::ObjectExt::Box<int32_t>(1)));
series->get_DataPoints()->AddDataPointForMapSeries(wb->GetCell(0, u"B4", System::ObjectExt::Box<int32_t>(10)));

// Add categories
chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A2", System::ObjectExt::Box<System::String>(u"United States")));
chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A3", System::ObjectExt::Box<System::String>(u"Mexico")));
chart->get_ChartData()->get_Categories()->Add(wb->GetCell(0, u"A4", System::ObjectExt::Box<System::String>(u"Brazil")));

// Change data point value
auto dataPoint = series->get_DataPoints()->idx_get(1);

// Set data point appearance

presentation->Save(u"output.pptx", Aspose::Slides::Export::SaveFormat::Pptx);
  • When you first open a presentation in PP it may take a few seconds to upload an image of the chart from the Bing service since we don’t provide the cached image.