diff -r 86a572fb05f8 -r 2ed9ff826d03 svghmi/svghmi_server.py
--- a/svghmi/svghmi_server.py	Fri Sep 27 06:54:35 2019 +0200
+++ b/svghmi/svghmi_server.py	Mon Sep 30 13:26:11 2019 +0200
@@ -31,7 +31,7 @@
 svghmi_recv_dispatch = PLCBinary.svghmi_recv_dispatch
 svghmi_recv_dispatch.restype = ctypes.c_int # error or 0
 svghmi_recv_dispatch.argtypes = [
-    ctypes.c_uint32,         # size
+    ctypes.c_uint32,  # size
     ctypes.c_char_p]  # data ptr
 # TODO multiclient : switch to arrays
 
@@ -60,8 +60,6 @@
 
     def onMessage(self, msg):
         # pass message to the C side recieve_message()
-        c_string = ctypes.c_char_p(msg)
-        c_string_pointer = ctypes.c_void_p(ctypes.addressof(c_string))
         svghmi_recv_dispatch(len(msg), msg)
 
         # TODO multiclient : pass client index as well