uwphandwriting-recognition

How to use multiple handwriting recognition engines in UWP?

I want to write with a stylus on an InkCanvas in any supported language. The handwriting recognition is done by the InkRecognizer objects.

Judging by their possible names, I see that it includes English (US), French, German and Romanian. I have these 4 language packs installed on my computer, but when I write a word in any of them besides English, I see the word is not recognized. The handwriting recognition engine for German is not used (or not available) when I write "geht".

I went in this demo and added two lines of code to see the installed engines. There were only 2, English (US) and English (Canada), when I wrote "geht", a German word.

enter image description here

enter image description here

My question is, how do I install the handwriting recognition engines? If as a user I cannot install them, why they are not available? And if they are available, why they are not used, even when I have the language pack installed?

I followed this tutorial, both Constrained handwriting recognition and International handwriting recognition sections.

I went in the Windows Settings app > Time & Language > Region and Language. I went through each language, clicked Options, and only for English there is some info about handwriting.

enter image description here

For the others, there was no info about Language options and handwriting.

enter image description here

My Windows version is 1709, which is also the minimum version supported by the app in which recognition happens.

Solution

  • By testing on my side, I cannot reproduce your issue. I could get handwriting recognition engines correctly of all the languages that installed with Handwriting package. enter image description here

    So that there should be nothing wrong with the code itself. I download the Handwriting packages just inside the options of one language you mentioned above.

    For the others, there was no info about Language options and handwriting.

    The normal language options page on my side is as follows, seems that your settings missed Language options.

    enter image description here

    So that what you actually need to resolve is finding the missed settings. Please try to remove the language and re-add it by Add a language button on Region & Language page. More details you could see Windows 10 Checklist Part 3: Language packs, speech and handwriting.

    If you still have issues, please check if something wrong with the system.