搭建PVB架构，实现前端的基础布局、菜单、表格、图示等功能

libs/pvb/include/rllib/rlevent.h

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+/***************************************************************************
+                          rlevent.h  -  description
+                             -------------------
+    begin                : Wed Dec 18 2002
+    copyright            : (C) 2002 by R. Lehrig
+    email                : lehrig@t-online.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as        *
+ *   published by the Free Software Foundation                             *
+ *                                                                         *
+ ***************************************************************************/
+/*! <pre>
+These functions allow you to send event log messages over TCP/IP to the event log server
+implemented by the pvserver pcontrol (available as separate download)
+
+See also the class rlEventLogServer.
+</pre> */
+#ifndef _RL_EVENT_H_
+#define _RL_EVENT_H_
+
+#include "rldefine.h"
+#define rlMAX_EVENT 256 // maximum size of an event message
+
+static const char rlevent_name[][4] = { "INF", "WAR", "ERR", "CRI", "FAT", "TST" };
+enum EventTypes
+{
+  rlInfo = 0,
+  rlWarning,
+  rlError,
+  rlCritical,
+  rlFatal,
+  rlTest,
+  rlEVENT_SIZE
+};
+
+#ifdef XXXunix
+#define rlEvent(typ, format, args...) { rlSetEventLocation(__FILE__,__LINE__); rlEventPrintf( typ, format, args); }
+#else
+#define rlEvent rlSetEventLocation(__FILE__,__LINE__);rlEventPrintf
+#endif
+
+/*! <pre>
+initialize rlEvent
+parameters:
+-eventhost=adr
+-eventport=num
+</pre> */
+void rlEventInit(int ac, char **av, const char *module);
+
+/*! <pre>
+set the location where rlEvent is called
+</pre> */
+void rlSetEventLocation(const char *file, int line);
+
+/*! <pre>
+output the message
+</pre> */
+void rlEventPrintf(int event_type, const char *format, ...);
+
+#endif