HH File Viewer API - Read C++ Headers on Android

The HH extension marks header files that are explicitly C++: projects use it to separate class declarations, templates and inline definitions from plain C headers that keep the .h suffix. Like most source formats, HH means nothing to Android, so reading a header from a code review email is usually impossible on a phone.

GroupDocs.Viewer Cloud gives an Android application a direct way to display these files. An HH header returns as HTML, PDF, JPG or PNG, and one request may cover the entire file or a chosen range. Viewer output brings page navigation, zoom and thumbnails, so reading matches what people expect from a document app.

Java developers integrate through the Android SDK, fetched with Maven or Gradle and accompanied by code samples that show a complete render round trip.

When writing code is not an option, the free online GroupDocs.Viewer app opens HH files in a browser. Over 180 formats share this endpoint, so one integration also serves the PDFs, images and office files of an engineering project. Evaluation begins with a free trial, and a first request can be sent straight from the API Explorer.


  • View HH Online via Python
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  • View HH Online via Ruby
  • View HH Online via Java
  • View HH Online via PHP
  • View HH Online via Node.js
  • View HH Online via Go

HH File Viewer API - Read C++ Headers on Android

View HH and other Popular Formats for Free

MPTXPSEMLXSHDWGMHTGZIPEPUBTGZOTGJ2KMPXRSTPSD1ONE7ZVCFMHTMLPSM1VSSSCALABATMSGJP2MDBZ2RBCMXASCHMLESSSVGOTTCSVTGAVDWJLSOTSPYCXXJSONXLSBVSDSXCIFCPLSVGZPPSXJPGXLTGZVIMSASSMPPVSSXCF2PPTWMZHTMLVSDXEPSDOTJAVADJVUPLTXMLWEBPCDRXLSLOGVSSMXLTMPPTXHPGSQLODTGIFVSTAIMBOXVBVDXOBJDIFFDOCXEMFPCLODSDNGEMLXLSMJSVTXTIFFJ2COTPICOSCMAS3PSPSDCCDCMCTXTHAMLPOTFODPMJPCDWTTSVRARCPPNUMBERSDGNHODGPHPASMPROPERTIESHTMOSTBMPVSTXNSFSTLZIPJPXTEXFODSPPSMPOTMDOTXPPSODPPPTMJPMTIFDOCTARCGMDXFXLAMXZMLTXZJPFPDFIGSPNGEMZCSSTAR.XZXLSXPSBRTFSCRIPTPOTXSMLGROOVYMAKEPSTMMWMFVSXMOBIDWFYAMLTAR.GZDOCMXLTXJPEGCSFODGERBVSDMAPNGOXPS

How to view HH file online

  • Select the file by clicking the HH App or simply drag & drop a HH file.
  • Click the Open button to upload and view HH file.
  • That is all! You can view your HH document online.

Frequently Asked Questions

How can I integrate GroupDocs.Viewer Cloud into my application?

Integration is done through APIs provided by GroupDocs.Viewer Cloud. The service offers APIs for different programming languages and platforms, making it convenient for developers to incorporate document viewing capabilities into their applications or websites.

I want to create my own app that can view HH file online?

Check our Cloud SDKs at GitHub if you are looking for the source code to view HH file format in the Cloud.

How secure is the document viewing process in GroupDocs.Viewer Cloud?

GroupDocs.Viewer Cloud ensures a secure document viewing process with data encryption, secure protocols, and adherence to data protection standards.

Is there a limit on the number of document views I can generate using GroupDocs.Viewer Cloud APIs?

GroupDocs.Viewer Cloud APIs offer flexible limits on the number of document views based on your subscription plan. Contact GroupDocs support for more details on view limits.

What file formats are supported by GroupDocs.Viewer Cloud APIs?

GroupDocs.Viewer Cloud APIs support a wide range of file formats including PDF, Word, Excel, and more.

Are there SDKs available for GroupDocs.Viewer Cloud APIs?

Yes, GroupDocs provides SDKs for various programming languages to simplify the integration and utilization of Viewer Cloud APIs in your applications.

Are office documents and PDFs supported by the same Android integration?

They are. The endpoint treats a DOCX, an XLSX and a PDF exactly like a header file: send it to storage, ask for a view, and display the HTML or image pages that come back.

What features does GroupDocs.Viewer Cloud offer?

GroupDocs.Viewer Cloud provides various features, such as zooming, paging, searching within documents, text selection, and rendering options. You can render specific pages, generate document thumbnails, or even render documents as images.

Are there any limitations or usage restrictions with GroupDocs.Viewer Cloud?

GroupDocs.Viewer Cloud has certain usage limits depending on the subscription plan you choose. These limits may include the number of API requests, document size, or the number of concurrent connections. Its recommended to review the pricing and plans to understand the specific limitations.

What document formats does GroupDocs.Viewer Cloud support?

GroupDocs.Viewer Cloud supports a wide range of document formats, including PDF, Microsoft Word (DOC, DOCX), Excel (XLS, XLSX), PowerPoint (PPT, PPTX), images (JPEG, PNG, GIF, TIFF), and more.

What is the difference between HH and H files?

The .h extension is used by C and by mixed C/C++ code, while .hh signals a header written specifically for C++. Both are plain text, and both go through the same GroupDocs.Viewer Cloud request.

C++ Header File (HH) Viewer REST API

View HH as Images like BMP, PNG, JPEG & TIFF

Rotate, reorder & watermark HH pages

View HH as HTML5

HH REST APIs are secured and require authentication

View HH as PDF

View HH with its attachments

View HH and hundreds of other formats from CAD, Word, PowerPoint, Excel, Email & eBook

Render HH files using a single API call

Get HH document information like page & attachment count as well as properties

Printing support

Users can print documents directly from the viewer, enabling them to easily generate physical copies of the document content if needed.

Render HH files to remote FTP or Cloud storage

Use third-party cloud storage to save your HH rendered files.

  • Amazon S3
  • Azure Storage
  • Google Cloud Storage
  • Google Drive
  • Dropbox
  • Box
  • FTP

Extract document text while rendering in image mode

Our API allows extract text from documents

Online document viewing

Users can view documents online without the hassle of downloading them first, providing a convenient and efficient way to access and interact with document content.

Programmatically get list of supported file types.

Use our REST API to get list of 186 supported document types.

GroupDocs.Viewer Cloud REST API Explorer

The easiest way to try out GroupDocs.Conversion Cloud API right away in your browser is by using GroupDocs Cloud Web API explorer, which is a collection of Swagger documentation for the GroupDocs Cloud APIs.It allows you to effortlessly interact and try out every single operation our APIs exposes.

Self-host HH Cloud Viewer Free App

The GroupDocs.Viewer Cloud Container Image enables users to self-host GroupDocs.Viewer Cloud for HH using Docker.

Free online HH viewer supports over 186 file formats

The cloud-based viewer API for HH has the ability to display different document formats quickly, with just a few lines of code. Using the SDK for Android you can find out about the various document formats supported by the SDK.

Flexible Rendering of HH Documents

GroupDocs.Viewer is a powerful document viewer REST API that allows you to display over 186 document formats in your applications. It allows rendering of HH for the whole document, page by page or custom range of pages.

Minify HH Output Content

One of the most exciting features of our Cloud-based viewer API for HH is its ability to minify the output content. Minification removes comments, extra white-spaces, and other unneeded characters without breaking the content structure. As a result, the page becomes smaller in size and loads faster.

Text selection

Users can select, copy, and paste text directly from documents, making it easy to extract and use information from the content.

Free Apps availability

Users can access and utilize FREE Apps for document viewing and annotation online, providing a convenient and cost-effective solution for accessing and interacting with document content.

Free Alternative to Desktop & Mobile HH Viewer Apps

GroupDocs.Viewer Cloud app does not need any installation or setup to view HH. You can quickly start using the Viewer App in your browser to view any number of files per day absolutely free of charge.

Integration capabilities

Developers can easily integrate the Viewer Cloud APIs into their applications to enable users to view documents directly within the application interface without the need to download them.

Free Apps support show or hide document comments

API Allows to view and comments embedded inside supported documents types.

Zooming functionality

The Viewer Cloud APIs provide zooming capabilities, allowing users to zoom in and out of document pages to view content in more detail or from a broader perspective.

Wide range of document format support

GroupDocs.Viewer Cloud APIs and FREE Apps support a variety of document formats including PDF, Microsoft Office (Word, Excel, PowerPoint), AutoCAD, image files (PNG, JPEG), and more.

Page navigation

The APIs offer intuitive page navigation features that allow users to navigate through document pages easily and efficiently.

Show or hide document headers and footers

GroupDocs.Viewer Cloud APIs supports rendering of headers and footers.

Support and Learning Resources

Learning Resources

Product Support

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View HH using SDKs in other popular languages

View HH Online via Python GroupDocs.Viewer
Cloud SDK for Python

View HH Online via cURL GroupDocs.Viewer
Cloud for cURL

View HH Online via .NET GroupDocs.Viewer
Cloud SDK for .NET

View HH Online via Ruby GroupDocs.Viewer
Cloud SDK for Ruby

View HH Online via Java GroupDocs.Viewer
Cloud SDK for Java

View HH Online via PHP GroupDocs.Viewer
Cloud SDK for PHP

View HH Online via Node.js GroupDocs.Viewer
Cloud SDK for Node.js

View HH Online via Go GroupDocs.Viewer
Cloud SDK for Go

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