Fix broken injection for wpf backend

backends/dotnet/src/wpf/Main.cs

@@ -13,7 +13,7 @@ public static class Server
         public static int Start(string arg)
         {
             int pid = Process.GetCurrentProcess().Id;
-            using (NamedPipeServerStream pipeServer = new NamedPipeServerStream(String.Format("pywinauto_{0}", pid), PipeDirection.InOut, 1, PipeTransmissionMode.Message))
+            using (NamedPipeServerStream pipeServer = new NamedPipeServerStream(String.Format("process_{0}", pid), PipeDirection.InOut, 1, PipeTransmissionMode.Message))
             {
                 bool stop = false;
                 while (!stop)

src/injected/api.py

@@ -77,14 +77,13 @@ def call_action(self, action_name, pid, **params):
         reply = json.loads(reply)
 
         reply_code = reply['status_code']
-        reply_message = reply['message']
 
         if reply_code == UNSUPPORTED_ACTION:
-            raise InjectedUnsupportedActionError(reply_message)
+            raise InjectedUnsupportedActionError(reply['message'])
         elif reply_code == RUNTIME_ERROR:
-            raise InjectedRuntimeError(reply_message)
+            raise InjectedRuntimeError(reply['message'])
         elif reply_code == NOT_FOUND:
-            raise InjectedNotFoundError(reply_message)
+            raise InjectedNotFoundError(reply['message'])
         elif reply_code != OK:
             raise InjectedBaseError()