SendMessage 到 .NET 控制台应用程序
我一直在尝试使用 WM_COPYDATA 从两个 .NET Windows 窗体应用程序发送消息，效果非常好。
我想知道这是否可以通过控制台应用程序来完成。
在 SendMessage 函数接收窗口句柄之后，如何获取控制台应用程序的窗口句柄？
[DllImport("User32.dll")]
public static extern Int32 SendMessage(int hWnd, int Msg, int wParam, [MarshalAs(UnmanagedType.LPStr)] string lParam);
另外，我是否需要在控制台应用程序中设置某种消息循环才能接收消息？
I have been experimenting with sending messages from two .NET Windows Forms applications using WM_COPYDATA, and it works great.
I would like to know if that can be accomplished with console applications.
After all the SendMessage function takes in a window handle, how can I get the window handle of a console application?
[DllImport("User32.dll")]
public static extern Int32 SendMessage(int hWnd, int Msg, int wParam, [MarshalAs(UnmanagedType.LPStr)] string lParam);
Also do I need to set up some kind of message loop in the console application to be able to receive messages?
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最常见的 IPC 方法（除了
WM_COPYDATA）是内存映射文件和命名管道。我建议你看看后者。MSDN 有一个命名管道通信示例。具体来说，您需要使用的类是
NamedPipeServerStream和NamedPipeClientStream，它们在创建后的行为很大程度上类似于普通的网络流。好处是它也可以通过网络运行，尽管您显然也可以在单台计算机上使用它。
至少可以说，在控制台应用程序中设置实际的 Windows 消息循环很复杂。如果您确实需要这样做，这里有一篇关于该主题的相当冗长的文章。如果您只想传输数据，我强烈建议您使用命名管道；如果您实际上不需要处理标准 Windows 消息，那么这就不值得付出努力。
The most common IPC methods (aside from
WM_COPYDATA) are memory-mapped files and named pipes. I suggest you check out the latter.MSDN has an example of named-pipe communication. Specifically the classes you need to use are
NamedPipeServerStreamandNamedPipeClientStream, which behave largely like ordinary network streams once they're created.The nice thing is that it also works over a network, although you can obviously use it on a single machine as well.
Setting up an actual Windows message loop in a console application is complicated, to say the least. If you really need to do it, here's a rather long-winded article on the subject. I'd strongly recommend using named pipes instead if all you want to do is transfer data; if you don't actually need to handle standard Windows messages then this isn't going to be worth the effort.
@tommieb75：XDMessaging 实际上是我的库:) WM_COPYDATA 不适用于控制台应用程序，因为它们没有消息泵。不过，该库确实包含一个基于 IOStream 的 IPC 实现，适用于控制台应用程序和服务。 http://thecodeking.github.com/XDMessaging.Net/
@tommieb75: XDMessaging is actually my library :) WM_COPYDATA doesn't work for console applications as they don't have a message pump. The library does however include a IOStream based IPC implementation that works for console apps and services. http://thecodeking.github.com/XDMessaging.Net/