message loop

window procedure

message loop:

      a for loop in thread or winmain

　　 GetMessage, TranslateMessage, and DispatchMessage

GetMessage:

　　get the message

DispatchMessage:

　　Dispatches a message to a window procedure. ----- winproc

WindowProc callback function

An application-defined function that processes messages sent to a window. The WNDPROC type defines a pointer to this callback function.

窗口过程：创建窗口后之指定。registerclass()

windows 窗口过程 线程消息队列

原文：http://www.cnblogs.com/yiii/p/6957810.html