https://github.com/miyako/4d-plugin-microsoft-ocr

Use native OCR on Windows.
https://github.com/miyako/4d-plugin-microsoft-ocr

4d-plugin ocr winrt

Last synced: 11 months ago
JSON representation

Use native OCR on Windows.

• Host: GitHub
• URL: https://github.com/miyako/4d-plugin-microsoft-ocr
• Owner: miyako
• License: mit
• Created: 2021-01-03T15:41:43.000Z (about 5 years ago)
• Default Branch: main
• Last Pushed: 2021-01-03T23:48:05.000Z (about 5 years ago)
• Last Synced: 2025-01-08T17:57:09.659Z (about 1 year ago)
• Topics: 4d-plugin, ocr, winrt
• Language: C
• Homepage:
• Size: 3.08 MB
• Stars: 2
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
![platform](https://img.shields.io/static/v1?label=platform&message=win-32%20|%20win-64&color=blue)

![version](https://img.shields.io/badge/version-17%2B-3E8B93)

[![license](https://img.shields.io/github/license/miyako/4d-plugin-microsoft-ocr)](LICENSE)

![downloads](https://img.shields.io/github/downloads/miyako/4d-plugin-microsoft-ocr/total)

# 4d-plugin-microsoft-ocr

Use native OCR on Windows.

Thanks to [C++/WinRT](https://blogs.windows.com/windowsdeveloper/2016/11/28/standard-c-windows-runtime-cwinrt/), it is no longer necessary to use all sorts of [tricks](https://qiita.com/Yukio-Ichikawa/items/f8d3111a60a337adfd48) to call [Universal Windows Platform](https://en.wikipedia.org/wiki/Universal_Windows_Platform) API from C++. 

This plugin is using the [Windows.Media.Ocr](https://docs.microsoft.com/en-us/uwp/api/Windows.Media.Ocr?view=winrt-19041) API. 

#### Visual Studio 2017

To enable `co_await`

* add the compiler flag `/await` to project

* set the c++ language standard to `ISO C++ Latest Draft Standard (/std:c++latest)`

* add `windowsapp.lib` to additional libraries

The project requires `10.0.17763` SDK, released in conjunction with Windows 10 version 1809.

To use on v17, move manifest.json to contents.

#### Example

```4d

$file:=Folder:C1567(fk resources folder:K87:11).file("4d-website-jpr.jpg")

$data:=$file.getContent()

$status:=ocr get text ($data)

```

![screenshot](https://user-images.githubusercontent.com/1725068/103483342-f40c3b00-4e29-11eb-95ab-bfd62f265208.png)

![image](https://github.com/miyako/4d-plugin-microsoft-ocr/blob/main/OCR/test/Resources/4d-website-jpr.jpg)

#### References

* [Consume APIs with C++/WinRT](https://docs.microsoft.com/en-us/windows/uwp/cpp-and-winrt-apis/consume-apis)

* [More advanced concurrency and asynchrony with C++/WinRT](https://docs.microsoft.com/en-us/windows/uwp/cpp-and-winrt-apis/concurrency-2)