windows 在 win32 中创建自定义消息类型？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/1816498/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Creating custom message types in win32?
提问by BeeBand
Is there a way to define and send custom message types in Win32, to be caught by your Main message handler? For example, my main message handler captures messages such as WM_PAINT, WM_RESIZE, WM_LBUTTONDOWN etc. Can I create my own WM_DOSOMETHING? If so, how would I send this message?
有没有办法在 Win32 中定义和发送自定义消息类型，以被您的主消息处理程序捕获？例如，我的主消息处理程序捕获诸如 WM_PAINT、WM_RESIZE、WM_LBUTTONDOWN 等消息。我可以创建自己的 WM_DOSOMETHING 吗？如果是这样，我将如何发送此消息？
Ah, I actually just discovered this was asked before here, however, it doesn't answer how I would actually send this message.
回答by Bob Moore
Woah, let's just stop and think here...
哇，让我们停下来想一想......
First of all, Windows itself sends messages in the WM_USER+nrange, that's why WM_APPwas invented (I found this out the hard way). But it gets worse... there's nothing to stop badly behaved applications broadcastingWM_USER+nor WM_APP+nmessages, and because human beings stole the crystal of infinite stupidity from the Gods, this does indeed happen in the real world.
首先，Windows 本身在WM_USER+n范围内发送消息，这就是WM_APP发明的原因（我发现这一点很困难）。但更糟的是……没有什么可以阻止不良应用程序的广播WM_USER+n或WM_APP+n消息，而且由于人类从众神那里偷走了无限愚蠢的水晶，这确实发生在现实世界中。
So, repeat after me, the only safe message is one I define myself and can only see myself. Use RegisterWindowMessage. And even then, be untrusting. When I need a string to define a RegisterWindowMessage, I use GUIDGEN to create the string and put a human-readable app-specific prefix on the resulting gobbledygook to help me differentiate multiple messages in the code.
所以，跟我重复一遍，唯一安全的信息是我定义自己并且只能看到我自己。使用注册窗口消息。即便如此，也要不信任。当我需要一个字符串来定义 RegisterWindowMessage 时，我使用 GUIDGEN 创建该字符串并在生成的 gobbledygook 上放置一个人类可读的应用程序特定前缀，以帮助我区分代码中的多个消息。
Bet on the stupidity of your fellow humans - it's always a winning bet.
赌你的人类同胞的愚蠢 - 这总是一个获胜的赌注。
If you want authoritative background on this whole topic, see here. No that's not my website, it's Joe Newcomer's.
如果您想了解整个主题的权威背景，请参阅此处。不，那不是我的网站，而是 Joe Newcomer 的。
回答by itowlson
Yes. Just declare a constant in the WM_USER range e.g.
是的。只需在 WM_USER 范围内声明一个常量，例如
#define WM_RETICULATE_SPLINES (WM_USER + 0x0001)
You can also register a message by name using the RegisterWindowMessage API.
您还可以使用 RegisterWindowMessage API 按名称注册消息。
You can then send these messages using SendMessage, PostMessage or any of their variants.
然后，您可以使用 SendMessage、PostMessage 或它们的任何变体发送这些消息。
回答by Anders
- If you created the window class, you can use the
WM_USERrange (orWM_APP) - If it is not your class, you can use
WM_APP - If you want to broadcast the message to every top level window, register your own global message with RegisterWindowMessage
- 如果您创建了窗口类，则可以使用
WM_USER范围（或WM_APP） - 如果不是你的班级，你可以使用
WM_APP - 如果要将消息广播到每个顶级窗口，请使用 RegisterWindowMessage 注册您自己的全局消息
