Render MHTML to POTX within C++ Applications
Convert MHTML to POTX within your C++ Applications without using Microsoft® PowerPoint
Why to Convert
If you are a C++ developer looking to add the ability to convert MHTML to POTX inside your C++ applications, then you have come to the right place. MHTML is a web page archive format that is used to save webpages for offline viewing. It is a combination of HTML code and resources such as images, audio, and video. POTX, on the other hand, is a PowerPoint Open XML template file format used to create presentations. Converting MHTML to POTX allows you to create presentations from webpages.
How Aspose.Total Helps for MHTML to POTX Conversion
Aspose.Total for C++ is a suite of APIs that provides developers with the ability to create, manipulate, and convert various file formats. It includes two APIs that can be used to convert MHTML to POTX: Aspose.PDF for C++ and Aspose.Slides for C++. Aspose.PDF for C++ can be used to export MHTML to PPTX, and Aspose.Slides for C++ can be used to convert PPTX to POTX. Both APIs are included in the Aspose.Total for C++ package, making it easy to integrate MHTML to POTX conversion into your C++ applications.
C++ API to Export MHTML to POTX
- Open MHTML file using Document class reference
- Convert MHTML to PPTX by using Save method function
- Load PPTX document by using Presentation class reference
- Save the document to POTX format using
Save
member function and set
Potxas SaveFormat
Get Started with C++ File Automation APIs
Install from command line as nuget install Aspose.Total.Cpp or via Package Manager Console of Visual Studio with Install-Package Aspose.Total.Cpp.
Alternatively, get the offline MSI installer or DLLs in a ZIP file from downloads .
// load MHTML file with an instance of Document class
auto doc = MakeObject<Document>(u"template.mhtml");
// save MHTML as PPTX format
doc->Save(u"PptxOutput.pptx", SaveFormat::Pptx);
// instantiate a Presentation object that represents a PPTX file
SharedPtr<Presentation> prs = MakeObject<Presentation>(u"PptxOutput.pptx");
// save the presentation as Potx format
prs->Save(u"output.potx", Aspose::Slides::Export::SaveFormat::Potx);
Change Password of MHTML Document via C++
In the process of rendering MHTML to POTX, you can open a password protected MHTML and also change its password. In order to change the password of a MHTML file, you must know the owner password of that document. You can load password protected PDF document with Aspose.PDF for C++ by specifying its owner password and use ChangePasswords method to change the password.
// load an existing MHTML Document
auto doc = MakeObject<Document>(L"input.mhtml", L"owner");
// change password of MHTML Document
doc->ChangePasswords(L"owner", L"newuser", L"newuser");
// save the document
doc->Save(L"output.Doc");
Add Images From Web in POTX File via C++
After converting MHTML to POTX, you can also add images from web to your output document. Aspose.Slides for C++ supports operations with images in these popular formats: JPEG, PNG, BMP, GIF, and others. You can add one or several images on your computer onto a slide in a presentation. This sample code in C++ shows you how to add an image to a POTX file
// instantiate a Presentation object that represents a POTX file
auto pres = System::MakeObject<Presentation>("output.potx");
// get slide
auto slide = pres->get_Slides()->idx_get(0);
// initialize Web Client
auto webClient = System::MakeObject<WebClient>();
// get image data
auto imageData = webClient->DownloadData(System::MakeObject<Uri>(u"[REPLACE WITH URL]"));
// add image
auto image = pres->get_Images()->AddImage(imageData);
// add picture frame
slide->get_Shapes()->AddPictureFrame(ShapeType::Rectangle, 10.0f, 10.0f, 100.0f, 100.0f, image);
// save updated file
pres->Save(u"updated.potx", SaveFormat::Potx);