【win】sample game not work
I ran the sample game but I could not execute it due to an error.

```py3
Assertion` failed!

Program: C:\Program Files\Python37\python.exe
File: src/hostapi/wdmks/pa_win_wdmks.c, Line 1061

Expression: FALSE
```

 - windows10 64bit
 - Python 3.7.1 64bit