如何发送由ON_NOTIFY处理的通知？ [英] How to send a notification that's handled by ON_NOTIFY?

问题描述

我正在向自定义网格表的所有者发布LVN_ ITEMCHANGED。我知道如何使用PostMessage发送WM_用户消息（如下所示）

I'm trying to post a LVN_ ITEMCHANGED to my custom gridlist's owner. I know how to send a WM_ User message using PostMessage (as shown here)

::PostMessage( AfxGetMainWnd()->GetSafeHwnd(), WM_REFRESH, (WPARAM)pBuffer, (LPARAM)GetOutputIdx() );

当我使用相同的代码发送LVN_ITEMCHANGED消息时，

When I use this same code to send a LVN_ITEMCHANGED message though,

::PostMessage( AfxGetMainWnd()->GetSafeHwnd(), LVN_ITEMCHANGED, 0, 0);

似乎并未被

ON_NOTIFY(LVN_ITEMCHANGED, ..., ...)

$ b b

我在所有者类中。

I have in the owner class.

我错误地使用:: PostMessage发送Notify事件？

在通知消息和WM_前缀消息之间有区别，或者如何处理它们？

有人可以发布样本，如何正确发送消息吗？

Am I wrong to be using ::PostMessage to send a Notify event?
Is there a difference between Notify messages and WM_ prefix messages or how they're handled?
Can someone post a sample of how I would send the message properly?

提前感谢。

编辑

我找到了另一种解决方法。请参阅下面的答案。

Edit
I found another solution to the problem. See my answer below.

推荐答案

我发现我可以覆盖我的派生类中的消息处理程序，我的父控件只需在消息映射中使用此代码：

I found out that I could override the message handler in my derived class and pass the message on to my parent control simply by using this code in the message map:

ON_NOTIFY_REFLECT_EX(LVN_ITEMCHANGED, OnListItemChanged)

然后在OnListItemChanged中，我首先调用基类函数，然后返回FALSE。这将使消息毫不费力地反映到父类。

Then in OnListItemChanged, I first call the base class function then return FALSE. This causes the message to be reflected to the parent class effortlessly.

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