091023（星期五）扩展TreeItem究竟是谁做的工作？1

最新推荐文章于 2025-09-09 20:59:07 发布

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最新推荐文章于 2025-09-09 20:59:07 发布

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分类专栏： SearchTool项目文章标签：扩展工作 pascal function command windows

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本文介绍了ReflectLastMsg函数的使用方法及条件断点设置技巧，并详细解释了该函数的工作原理及其在消息反射机制中的作用。

1、如何跟进TreeCtrl被双击时的ReflectLastMsg函数

条件断点设置方法

Alt+F9

弹出编辑断点对话框，选择设置的断点所在的行；

选择Condition…按钮，输入wP==0&&lP==4

2、关于ReflectLastMsg的描述

This member function is called by the framework to reflect the last message to the child window.

static BOOL PASCAL ReflectLastMsg(

HWND hWndChild,

LRESULT* pResult = NULL

);

Parameters

hWndChild

A handle to a child window.

pResult

The result generated by the child window to be returned by the parent window. Can be NULL.

Return Value

Nonzero if the message was handled; otherwise 0.

Remarks

This member function calls SendChildNotifyLastMsg if the window identified by hWndChild is an OLE control or a window in the permanent map.

Handling Reflected Messages.

Handling Reflected MessagesSee Also

Declaring Message Handler Functions

Message reflection lets you handle messages for a control, such as WM_CTLCOLOR, WM_COMMAND, and WM_NOTIFY, within the control itself消息反射可以在控件内部来处理来自控件的消息. This makes the control more self-contained and portable. The mechanism works with Windows common controls as well as with ActiveX controls (formerly called OLE controls).

Message reflection lets you reuse your CWnd-derived classes more readily. Message reflection works via CWnd::OnChildNotify, using special ON_XXX_REFLECT message map entries: for example, ON_CTLCOLOR_REFLECT and ON_CONTROL_REFLECT. Technical Note 62 explains message reflection in more detail.

目前看来并不能确定是ReflectLastMsg。