菜鸟问题：subclassing是什么东西？subclass作动词讲有时何意思？

seabank 2002-07-26 10:11:56

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softstone 2002-07-26

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subclassing 在vc中就是子类化的意思...在MFC中,每一个控件资源(即windows控件)都与一个对应的MFC控件类相关联.如编辑框与CEDit;有时我们可以自己从MFC控件类中派生出我们自己的控件,如CMyEdit;这个时候为了实现控件资源与我们自己的控件类间的关联,可以将控件子类化....注意:一般来说,通过对话框模板建立的控件没有与任何MFC类相关联,若想进行关联,只要在对话框ClassView中建立相应的控件变量即可,,,,如果这时的控件变量的类型派生于你自己的类如CMyEdit,则该控件就已经进行了子类化,在其他情况下,一般要显示的调用子类化函数......就说这么多!!!!

Subclassing and Hooking is a standard technique in Windows programming for customizing the behavior of a window. However, to wrap subclassing and hooking into virtual function overriding it is an obscure technique unknown to a large population of Windows programmers. This is unfortunate, because there are many cases where using subclassing is the most elegant and clean way to solve most problems. Softgroup .NET Subclass and Hook Objects supply .Net fast, small and lightweight wrapper classes that made easy and secure subclassing and hooking windows for any programmers. Included Classes HookApplication: provides application-wide messages subclassing. This class allows an application to capture a message before it is dispatched to a control or form. HookClipboard: provides functionality for hooking a window to the clipboard chain. HookConsole: enable console applications to intercept close controls command like CTRL+C, CTRL+BREAK etc. HookKeyboard: provides system wide low-level hook keyboard. HookMouse: provides monitor for mouse messages of entire system. HookWindows: provides core implementstion of most common Windows Hooks. SubclassWindow: provides native subclass of windows messages for a form and/or control. Requirements Prior to running Setup to install the Softgroup .Net Subclass and Hook Objects you must already have the .NET Framework 2.0 and Microsoft Visual Studio 2005/2008/2010 installed on the computer.

This code demonstrates how to write a subclassing control in Visual Basic(version 5 or later). The code takes advantage of the new AddressOfkeyword, which can only be used from a BAS module. A common BAS modulekeeps track of all the current control instances within the currentprocess and then intercepts Windows messages, calling specific controlinstances as appropriate.

A freeware MFC class to support MFC subclassing(19KB)

This demonstrates hoe to write a subclassing control. And it has many examples as to how to use the control (included.)

Subclassing the List View Control using MFC用MFC写的列表视图子类(3KB)

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