MSDN关于消息和消息队列的详细解析

About Messages and Message Queues：http://msdn.microsoft.com/en-us/library/ms644927(v=vs.85).aspx#filtering

简要如下：

This section discusses the following topics:

• Windows Messages
• Message Types
  • System-Defined Messages
  • Application-Defined Messages
• Message Routing
  • Queued Messages
  • Nonqueued Messages
• Message Handling
  • Message Loop
  • Window Procedure
• Message Filtering
• Posting and Sending Messages
  • Posting Messages
  • Sending Messages
• Message Deadlocks
• Broadcasting Messages
• Query Messages