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

谢谢！！

...全文

127 1 打赏收藏转发到动态举报

写回复

用AI写文章

1 条回复

切换为时间正序

请发表友善的回复…

发表回复

softstone 2002-07-26

打赏
举报

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.

Book Description Like it or not, JavaScript is everywhere these days—from browser to server to mobile—and now you, too, need to learn the language or dive deeper than you have. This concise book guides you into and through JavaScript, written by a veteran programmer who once found himself in the same position. Speaking JavaScript helps you approach the language with four standalone sections. First, a quick-start guide teaches you just enough of the language to help you be productive right away. More experienced JavaScript programmers will find a complete and easy-to-read reference that covers each language feature in depth. Complete contents include: JavaScript quick start: Familiar with object-oriented programming? This part helps you learn JavaScript quickly and properly. JavaScript in depth: Learn details of ECMAScript 5, from syntax, variables, functions, and object-oriented programming to regular expressions and JSON with lots of examples. Pick a topic and jump in. Background: Understand JavaScript’s history and its relationship with other programming languages. Tips, tools, and libraries: Survey existing style guides, best practices, advanced techniques, module systems, package managers, build tools, and learning resources. Table of Contents Part I: JavaScript Quick Start Chapter 1. Basic JavaScript Part II: Background Chapter 2. Why JavaScript? Chapter 3. The Nature of JavaScript Chapter 4. How JavaScript Was Created Chapter 5. Standardization: ECMAScript Chapter 6. Historical JavaScript Milestones Part III: JavaScript in Depth Chapter 7. JavaScript’s Syntax Chapter 8. Values Chapter 9. Operators Chapter 10. Booleans Chapter 11. Numbers Chapter 12. Strings Chapter 13. Statements Chapter 14. Exception Handling Chapter 15. Functions Chapter 16. Variables: Scopes, Environments, and Closures Chapter 17. Objects and Inheritance Chapter 18. Arrays Chapter 19. Regular Expressions Chapter 20. Dates Chapter 21. Math Chapter 22. JSON Chapter 23. Standard Global Var

A Brief History of Qt Part I: Basic Qt Chapter 1. Getting Started Hello Qt Making Connections Laying Out Widgets Using the Reference Documentation Chapter 2. Creating Dialogs Subclassing QDialog Signals and Slots in Depth Rapid Dialog Design Shape-Changing Dialogs Dynamic Dialogs Built-in Widget and Dialog Classes Chapter 3. Creating Main Windows Subclassing QMainWindow Creating Menus and Toolbars Setting Up the Status Bar Implementing the File Menu Using Dialogs Storing Settings Multiple Documents Splash Screens Chapter 4. Implementing Application Functionality The Central Widget Subclassing QTableWidget Loading and Saving Implementing the Edit Menu Implementing the Other Menus Subclassing QTableWidgetItem Chapter 5. Creating Custom Widgets Customizing Qt Widgets Subclassing QWidget Integrating Custom Widgets with Qt Designer Double Buffering
Part II: Intermediate Qt Chapter 6. Layout Management Laying Out Widgets on a Form Stacked Layouts Splitters Scrolling Areas Dock Windows and Toolbars Multiple Document Interface Chapter 7. Event Processing Reimplementing Event Handlers Installing Event Filters Staying Responsive during Intensive Processing Chapter 8. 2D Graphics Painting with QPainter Coordinate System Transformations High-Quality Rendering with QImage Item-Based Rendering with Graphics View Printing Chapter 9. Drag and Drop Enabling Drag and Drop Supporting Custom Drag Types Clipboard Handling Chapter 10. Item View Classes Using the Item View Convenience Classes Using Predefined Models Implementing Custom Models Implementing Custom Delegates Chapter 11. Container Classes Sequential Containers Associative Containers Generic Algorithms Strings, Byte Arrays, and Variants Chapter 12. Input/Output Reading and Writing Binary Data Reading and Writing Text Traversing Directories Embedding Resources Inter-Process Communication Chapter 13. Databases Connecting and Querying Viewing Tables Editing Records Using Forms Presenting Data in Tabular Forms Chapter 14. Multithreading Creating Threads Synchronizing Threads Communicating with the Main Thread Using Qt's Classes in Secondary Threads Chapter 15. Networking Writing FTP Clients Writing HTTP Clients Writing TCP Client–Server Applications Sending and Receiving UDP Datagrams Chapter 16. XML Reading XML with QXmlStreamReader Reading XML with DOM Reading XML with SAX Writing XML Chapter 17. Providing Online Help Tooltips, Status Tips, and "What's This?" Help Using a Web Browser to Provide Online Help Using QTextBrowser as a Simple Help Engine Using Qt Assistant for Powerful Online Help
Part III: Advanced Qt Chapter 18. Internationalization Working with Unicode Making Applications Translation-Aware Dynamic Language Switching Translating Applications Chapter 19. Look and Feel Customization Using Qt Style Sheets Subclassing QStyle Chapter 20. 3D Graphics Drawing Using OpenGL Combining OpenGL and QPainter Doing Overlays Using Framebuffer Objects Chapter 21. Creating Plugins Extending Qt with Plugins Making Applications Plugin-Aware Writing Application Plugins Chapter 22. Application Scripting Overview of the ECMAScript Language Extending Qt Applications with Scripts Implementing GUI Extensions Using Scripts Automating Tasks through Scripting Chapter 23. Platform-Specific Features Interfacing with Native APIs Using ActiveX on Windows Handling X11 Session Management Chapter 24. Embedded Programming Getting Started with Qt/Embedded Linux Customizing Qt/Embedded Linux Integrating Qt Applications with Qtopia Using Qtopia APIs
Part IV: Appendixes Appendix A. Obtaining and Installing Qt A Note on Licensing Installing Qt/Windows Installing Qt/Mac Installing Qt/X11 Appendix B. Building Qt Applications Using qmake Using Third-Party Build Tools Appendix C. Introduction to Qt Jambi Getting Started with Qt Jambi Using Qt Jambi in the Eclipse IDE Integrating C++ Components with Qt Jambi Appendix D. Introduction to C++ for Java and C# Programmers Getting Started with C++ Main Language Differences The Standard C++ Library About the Authors Jasmin Blanchette Mark Summerfield Production Index

Bluuur This UIVisualEffectsView subclass allows to dynamically adjust blur radius by changing property blurRadius from 0.0 for any. Example To run the example project, clone the repo, and run pod install from the Example directory first. You will be able to move blur view and change blur radius. Requirements iOS 9.0 , because of subclassing from UIVisualEffectsView. Installation Bluuur is available through CocoaPods. To install it, simply add the following line to your Podfile: pod 'Blu

VC/MFC

16,551

社区成员

421,604

社区内容

发帖

与我相关

我的任务

社区管理员

加入社区

近7日
近30日
至今

加载中

查看更多榜单

社区公告

VC/MFC社区版块或许是CSDN最“古老”的版块了，记忆之中，与CSDN的年龄几乎差不多。随着时间的推移，MFC技术渐渐的偏离了开发主流，若干年之后的今天，当我们面对着微软的这个经典之笔，内心充满着敬意，那些曾经的记忆，可以说代表着二十年前曾经的辉煌……
向经典致敬，或许是老一代程序员内心里面难以释怀的感受。互联网大行其道的今天，我们期待着MFC技术能够恢复其曾经的辉煌，或许这个期待会永远成为一种“梦想”，或许一切皆有可能……
我们希望这个版块可以很好的适配Web时代，期待更好的互联网技术能够使得MFC技术框架得以重现活力，……

试试用AI创作助手写篇文章吧

+ 用AI写文章