共四个演示。分别如下：

1:Sample

一个简单的使用了共享内存映射的例子，运行两个实例看看就知道，没有什么特别。

2:SendText

不用窗口子类化，而达到和发送自定义消息同样的效果。

3:SendFile

由于演示2中还是通过发消息来传递字符串，不可能传递大块文本，本例综合演示1和演示2达到传递大块文本的功能。

4:Chat

演示2和演示3使用的都是SendMessage来发放通知消息，所以不能异步通讯，SetWindowText不能跨进程使用，PostMessage只能在WM_USER以上的自定义消息中才能传递指针，那么如何才能异步通讯呢？我还没有好主意，就用定时器吧！看看这个可以聊天的程序就知道了。-a total of four demonstration. Respectively, as follows : 1 : Sample a simple use of shared memory mapping example, look at two examples run, we know that nothing special. 2 : SendText not window-type, and to achieve this definition of news from the same effect. 3 : As demonstrated SendFile 2 updates, or to pass through the string, impossible to send large text, the cases demonstrate a comprehensive and demonstration to send two large text functions. 4 : Chat demonstration two and three demonstration SendMessage are used to notify the news release, it is not asynchronous communications, inter-process SetWindowText not use, PostMessage WM_USER only in the above-defined messages can transfer target, How can we asynchronous communication? I have not a good idea, on the timer! Chat can look at