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I went to Maker Faire 2017 Tokyo day 1 with Happa. The place was splitted in two but the scale seems as same as the last year? It took about 5 hours to look around so I got tired.

There are so many robot exhibition in one place that I cannot see difference between them. In contrast,kids corner was fun because of much variation. And of course the most interesting part is the electronics corner. For example, I am developing Windows IoT now so LattePanda was interesting
for me. I cannot found them in exhibitor so that is a link for product. Personally, denha’s channel Pythagora-switch-like machines,カサネタリウム funny plotter? were much fun.

I want to join Maker Fair with Weather Typing IoT some time.

In Tokyo Game Show 2017, 東プレ will have a typing tournament “REALFORCE TYPING CHAMPIONSHIP 2017”. And they use the Weather Typing. 東プレ makes a famous keyboard Realforce which is widely used among typers. Of course I am a user, too.

A while ago, Pocari told me about the tournament and asked me to allow to use Weather Typing and I responded yes. It seems that was decided. Thanks to use Weather Typing every time. I have not thought such an event 15 years ago when I saw TOD event in Akihabara.

After using WT3 twice in Typing Summit and I fixed up some bugs so timing is so good. It will be a one on one battle via LAN so I do not have any concerns but please tell me if you know any bugs of current version.

It will be another event in next week, the download count of Weather Typing will be higher.

The bottle neck of porting Weather Tpying (WPF) to UWP is native C++ DLL. It is not difficult to port C++ code to C# but it will be convenient if I can use native code, it will be good.

At first, I tried making native DLL and called it from UWP by P/Invoke, it succeeded. It worked in Windows IoT, too. It seems that without prohibited API, it works.

After that, I tried building it as Windows Store app and validated with Windows App Certification Kit (WACK). Then I got “vccorlib140.dll is not supported for this application type” and Windows Security Features Test failed. In the error, memset and memcpy, that seems no problem to use, were shown. It
seems that the native DLL is linking desktop app library.

I found “Consume Windows Runtime Extension” in Native DLL project property. I enabled it seeing “Using C++/CX in Desktop apps” but it doesn’t change.

At last, I found official help “How to: Use Existing C++ Code in a Universal Windows Platform App” and changed project file directly and changed pre-complie header name addition to C++/CX settings above. After that, WACK succeeded.

When I saw the generated DLL by Dependancy Walker, it linked to “VCRUNTIME140_APP.DLL” and “MSVCP140_APP.DLL” instead of “VCRUNTIME140.DLL” and “MSVCP140.DLL. ” APP-DLL may be for UWP.