beremiz

SVGHMI: Update Button widget to class declaration, and add a button widget in tests/svghmi.
svghmi
2020-05-13, Edouard Tisserant
00825316ed00
SVGHMI: Update Button widget to class declaration, and add a button widget in tests/svghmi.
<?xml version="1.0" encoding="UTF-8"?>
<BaseParams Name="py_ext_0" IEC_Channel="0"/>