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Description: 本程序是用Sockets编写的HTTP客户程序实例，它具有三个基本的命令：GET、HEAD、POST，可以和我前一次发的HTTP服务器进行测试。-this procedure is used to prepare the HTTP Sockets clients example, It has three basic commands : GET, HEAD, POST, and before I could once when the HTTP server for testing.
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Size: 70159 |
Author: 侯爽 |
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Description: API实现http请求，支持post和get方法
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Size: 178688 |
Author: 陈忠权 |
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Description: 用C#实现的Http协议封装，可以使用UrlEncoded、Multi-Part form vars、XML这3种方式来POST和Get文本和文件，支持Proxy,支持各种编码，是良好的学习HTTP编程的例程
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Size: 6533 |
Author: YMF |
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Description: 用VC编写的基于MFC的HTTP服务器,提供一般的请求命令(POST,GET...)
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Size: 47252 |
Author: lc |
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Description: symbian c++的HTTP联网，里面包括简单的get和post请求
Platform: |
Size: 18399 |
Author: kykz111 |
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Description: 目录
第一篇 技术基础总结
第1章 .NET，你真的知道了吗
1.1 搞清自己是干什么的
1.2 .NET的几个特性
1.3 万丈高楼平地起：面试者必会
1.3.1 C#介绍
1.3.2 命名空间
1.3.3 C#语法格式要点
1.3.4 变量
1.3.5 类型推断
1.3.6 变量的作用域
1.3.7 常量
1.3.8 流程控制
1.3.9 字符串常见操作
1.3.10 几个常用的数学函数
1.4 .NET的面向对象之门
1.4.1 继承——“子承父业”
1.4.2 委托——“任务书”
1.4.3 事件——“年终分红”
1.4.4 反射——“解剖”
1.5 .NET开发几把小刀
1.5.1 using之多变身
1.5.2 @符号的妙用
1.5.3 预处理指令，有你更轻松
1.6 Visual Studio.NET 2008 实战
1.6.1 如何创建ASP.NET项目
1.6.2 如何创建Windows项目
1.6.3 Visual Studio.NET 2008操作与使用技巧
1.6.4 常见开发调试技巧
1.6.5 错误异常处理方法
本章常见技术面试题
常见面试技巧之面试前的准备
本章小结
第2章 细节决定成败
2.1 Equals()和运算符==的区别
2.2 const和readonly的区别
2.3 private、protected、public和internal的区别
2.4 sealed、new、virtual、abstract与override
2.5 abstract class与interface
2.6 公共变量与属性的区别
2.7 参数修饰符params、out和ref的区别
2.8 值类型和引用类型的区别
2.9 结构与类的区别
2.10 Dispose()和Close()、Finalize()的区别
2.11 string和StringBuilder有什么区别
2.12 Debug版本和Release版本的区别
本章常见技术面试题
常见面试技巧之细节决定成败
本章小结
第3章 ASP.NET开发大杂烩
3.1 页面生命周期
3.1.1 独立页面生命周期事件顺序
3.1.2 具有Master页的生命周期事件顺序
3.1.3 ASP.NET生命周期详解
3.2 页面状态管理
3.2.1 Cookie
3.2.2 HtmlInputHidden隐藏域
3.2.3 ViewState
3.2.4 查询字符串Request
3.2.5 Aplication对象
3.2.6 Session对象
3.2.7 示例项目：在线用户列表统计
3.3 服务器和客户端数据交互
3.3.1 页面数据绑定全攻略
3.3.2 Bind和Eval的区别
3.4 ASP.NET编程中的技巧
3.4.1 页面之间传值的7种方法
3.4.2 get与post方法的区别
3.4.3 ASP.NET服务器控件和HTML控件的区别
3.4.4 Server.Transfer和Response.Redirect的区别
3.4.5 刷新页面的方法汇总
3.4.6 页面事件控制
3.4.7 在URL中传递中文的解决方案
3.4.8 增强用户体验的一些技巧
3.4.9 XHTML与HTML的区别
3.5 打造自己的页面基类PageBase
本章常见技术面试题
常见面试技巧之如何做好自我介绍
本章小结
第4章 Windows窗体编程你也行
4.1 创建简单的WinForm项目
4.2 创建MDI窗体应用
4.3 获取应用程序路径信息
4.4 回车跳转控件焦点
4.5 窗体间传递复杂数据
4.5.1 构造传递
4.5.2 公有字段传递
4.5.3 委托与事件传递
4.6 实现个性化窗体界面
4.7 无标题窗体拖动的两种方法
4.8 让程序只启动一次——单实例运行
4.9 实现系统托盘和热键呼出
4.10 进程与多线程的区别
4.11 创建多线程应用程序
4.12 WinForm开发常见问题
4.12.1 如何设置运行时窗体的起始位置
4.12.2 如何使一个窗体在屏幕的最顶端
4.12.3 实现窗体渐显效果
4.12.4 设置窗口背景为渐变色
4.12.5 模态窗口和非模态窗口
4.12.6 屏蔽窗口右上角的关闭操作
4.12.7 调用执行外部的程序
本章常见技术面试题
常见面试技巧之经典问题巧回答
本章小结
第5章 数据库开发
5.1 ADO.NET与抽水的故事
5.1.1 ADO.NET的定义
5.1.2 趣味理解ADO.NET对象模型
5.1.3 进水笼头——建立Connection
5.1.4 抽水机——Command
5.1.5 输水管——DataAdapter
5.1.6 输水管——DataReader
5.1.7 随用随关，释放资源
5.1.8 水库管理——DataSet
5.1.9 水池子——DataTable
5.2 数据库操作类的封装详解
5.2.1 执行命令方法的封装
5.2.2 查询数据方法的封装
5.2.3 数据统计方法的封装
5.2.4 实现SqlParameter方式
5.2.5 实现多数据库的访问
5.3 常用经典SQL语句
5.4 事务处理
5.4.1 SQL和存储过程级别的事务
5.4.2 ADO.NET级别的事务
5.4.3 ASP.NET页面级别的事务
5.4.4 企业级服务COM+事务
5.4.5 System.Transactions 事务处理
5.5 Oracle开发常见问题
5.5.1 Oracle和SQL Server的常用函数对比
5.5.2 Oracle和SQL Server的语句区别
5.5.3 ASP.NET连接Oracle失败的解决方法
本章常见技术面试题
常见面试技巧之经典问题巧回答
本章小结
第6章 关于XML
6.1 XML概述
6.1.1 XML和HTML有什么区别
6.1.2 XML的优势
6.2 文档结构与基本语法
6.3 XML操作
6.3.1 XmlDocument创建XML文档
6.3.2 XmlTextWriter创建XML文档
6.3.3 XmlDocument读取XML文档
6.3.4 XmlTextReader读取XML文档
6.3.5 在HTML中显示XML中的数据
6.3.6 JavaScript获取XML内容
6.3.7 项目案例：通用自定义XML配置类
6.4 ADO.NET与XML
6.4.1 读XML文档到DataSet
6.4.2 DataSet转为XML文档
6.5 项目案例1：实现网站的RSS应用
6.6 项目案例2：在线实现RSS阅读器
本章常见技术面试题
常见面试技巧之经典问题巧回答
本章小结
第7章 Web Service开发详解
7.1 Web Service基本概念
7.2 Web Service的应用场景
7.3 创建简单的Web Service项目应用
7.4 Web Service属性介绍
7.5 ASP.NET如何调用Web Service
7.6 JavaScript如何调用Web Service
7.6.1 通过webbehavior.htc调用Web Service
7.6.2 通过Microsoft.XMLDOM调用Web Service
7.6.3 XMLHTTP POST调用Web Service
7.6.4 SOAP调用Web Service
7.7 WinForm如何调用Web Service
7.7.1 .NET的WinForm调用Web Service
7.7.2 手动发送HTTP请求调用Web Service
7.8 实现异步调用Web Service
7.9 如何保证Web Service的安全
7.9.1 通过SoapHeader来增强Web Service的安全性
7.9.2 采用SSL实现加密传输
7.9.3 访问IP限制
7.10 Web Service开发中需要注意的 问题
本章常见技术面试题
常见面试技巧之经典问题巧回答
本章小结
第8章 用户体验的杀手锏——Ajax
8.1 Ajax概述
8.1.1 什么是Ajax
8.1.2 Ajax技术的核心
8.1.3 Ajax的工作原理
8.1.4 Ajax的优点
8.1.5 Ajax的问题
8.1.6 Ajax适用场景
8.1.7 Ajax不适用场景
8.1.8 XMLHttpRequest开发实例
8.2 微软VS.NET的Ajax开发
8.2.1 安装ASP.NET 2.0 Ajax Extensions
8.2.2 创建ASP.NET Ajax应用程序
8.2.3 ScriptManager控件使用技巧
8.2.4 UpdaetPanel控件使用技巧
8.2.5 AsyncPostBackTrigger实现外部控件引发局部刷新
8.2.6 Ajax错误处理
8.2.7 告诉用户你正在做什么——UpdateProgress控件
8.2.8 ASP.NET AjaxControToolKit简介
8.3 使用第三方组件 Ajax.dll 开发
8.4 使用第三方组件AjaxPro的开发
8.5 使用第三方组件MagicAjax的开发
8.6 Ajax开发原则
本章常见技术面试题
常见面试技巧之经典问题巧回答
本章小结
第9章 系统与文件操作
9.1 获取系统信息
9.1.1 用SystemInformation类获取系统信息
9.1.2 用Environment 类获取系统信息
9.1.3 通过WMI获取系统信息
9.1.4 用RegistryKey 类读取系统信息
9.1.5 用API函数获取系统信息
9.1.6 获取系统服务信息
9.2 文件操作
9.2.1 StreamWriter类实现写文件
9.2.2 通过File类创建文件
9.2.3 通过FileStream类创建文件
9.2.4 通过FileInfo类创建文件
9.2.5 追加文本
9.2.6 读取文本文件
9.2.7 读写二进制文件
9.2.8 文件复制、移动、删除
9.3 文件夹目录操作
9.4 读写INI文件
9.5 读写注册表
本章常见技术面试题
常见面试技巧之经典问题巧回答
本章小结
第10章 网络应用开发
10.1 Socket基本编程
10.1.1 Socket基本知识
10.1.2 Socket服务端开发步骤
10.1.3 Socket客户端开发步骤
10.2 异步Socket通信——实现MSN机器人
10.2.1 机器人服务端
10.2.2 客户端实现步骤
10.3 基于TCP协议的客户端和服务端
10.3.1 TcpListener 实现网络服务端
10.3.2 TcpClient实现网络客户端
本章常见技术面试题
常见面试技巧之经典问题巧回答
本章小结
第11章 Windows Service开发
11.1 什么是Windows服务
11.2 创建Windows服务
11.3 Windows服务开发常见问题
11.4 安装/卸载Windows服务
11.4.1 安装Windows服务
11.4.2 卸载Windows服务
11.4.3 Windows服务应用程序体系结构
11.5 调试Windows服务
11.5.1 日志调试法
11.5.2 附加进程断点调试法
本章常见技术面试题
职场智慧之初入江湖
本章小结
第12章 新技术初探
12.1 WPF 421
12.1.1 WPF简介 421
12.1.2 WPF何以令人佩服 422
12.1.3 XAML概述 422
12.1.4 WPF开发环境配置 423
12.1.5 项目示例：开发一个简单的WPF应用程序 424
12.2 WCF 427
12.2.1 SOA是什么 427
12.2.2 WCF是什么 428
12.2.3 WCF的优势是什么 428
12.2.4 WCF开发环境 431
12.2.5 项目示例：订票服务WCF开发步骤 431
12.3 LINQ 440
12.3.1 LINQ的架构 441
12.3.2 传统的查询 441
12.3.3 LINQ查询实例 444
12.3.4 LINQ查询语法 448
本章常见技术面试题 449
职场智慧之学习方法 449
本章小结 450
第二篇 系统架构设计思想
第13章 面向对象思想
13.1 为什么要面向对象 454
13.2 什么是面向对象 456
13.3 面向对象的特点 458
13.3.1 封装 459
13.3.2 继承 459
13.3.3 多态 460
13.4 面向对象设计和开发实例 466
13.4.1 传统过程化设计实现播放器功能 466
13.4.2 基于面向对象设计实现播放器功能 467
13.4.3 面向对象封装、继承、多态的应用 468
13.4.4 设计模式、条件外置及反射技术的应用 471
13.5 面向对象分析（OOA）的方法 475
13.6 面向对象设计的原则 478
13.6.1 优先使用（对象）组合，而非（类）继承 478
13.6.2 针对接口编程，而非（接口的）实现 481
13.6.3 开放－封闭法则（OCP） 482
13.6.4 Liskov替换法则（LSP） 485
13.6.5 单一职责原则（SRP） 486
13.6.6 依赖倒置原则（DIP） 486
13.6.7 接口分离原则（ISP） 489
13.6.8 面向对象设计时需要注意的问题 490
本章常见技术面试题 491
本章小结 491
第14章 三层架构项目开发
14.1 什么是三层架构 494
14.1.1 常用的三层架构设计 494
14.1.2 趣味理解：三层架构与养猪 496
14.2 为什么要用三层架构 497
14.3 三层架构项目开发示例 500
14.3.1 数据库设计 500
14.3.2 创建整体解决方案 501
14.3.3 业务实体Model的实现 502
14.3.4 数据访问层的实现 504
14.3.5 业务逻辑层的实现 509
14.3.6 表示层的实现 510
14.4 实现基于工厂模式的三层架构 512
14.4.1 扩展新增数据访问层 512
14.4.2 IDAL抽象接口的实现 513
14.4.3 创建DAL对象的封装 517
14.4.4 实现抽象工厂模式 519
14.4.5 工厂模式的三层架构图 521
本章常见技术面试题 522
职场智慧之程序员的职业规划 523
本章小结 524
第15章 大型网站的性能优化与安全
15.1 高效C#编码优化 526
15.2 页面（HTML）优化的方法 534
15.3 ASP.NET开发性能优化 540
15.3.1 如没必要，尽量使用静态HTML页面 540
15.3.2 避免不必要的回送操作 541
15.3.3 尽量在客户端进行用户输入验证 541
15.3.4 关闭不必要的Session状态 542
15.3.5 优先使用HTML控件，而非服务器控件 542
15.3.6 不必要时关闭ViewState 542
15.3.7 禁用调试模式 543
15.4 系统缓存管理 543
15.4.1 缓存的分类 544
15.4.2 传统缓存方式 545
15.4.3 页面输出缓存 545
15.4.4 页面输出缓存API 548
15.4.5 页面局部缓存 549
15.4.6 应用程序数据缓存 554
15.4.7 文件缓存依赖 555
15.4.8 数据库缓存依赖 557
15.4.9 Memcached——分布式缓存系统 560
15.4.10 Cacheman——.NET架构下的分布式缓存项目 561
15.5 数据库访问性能优化 562
15.5.1 选择合适的.NET数据供应器 563
15.5.2 及时地关闭数据库连接 563
15.5.3 跟踪监视SQL Server当前链接池状态 564
15.5.4 善用数据库的存储过程 567
15.5.5 SqlDataRead和Dataset的选择 567
15.5.6 ExecuteNonQuery和ExecuteScalar的选择 568
15.5.7 数据的绑定DataBinder 568
15.5.8 使用DataReader的注意事项 568
15.5.9 Command对象的使用 569
15.5.10 反复地执行SQL语句用 Prepare() 569
15.5.11 分页的数据访问 570
15.5.12 SQL命令的优化 570
15.5.13 tempdb的使用技巧 572
15.5.14 使用视图代替跨库操作 572
15.5.15 尽量避免大事务操作 572
15.5.16 尽量避免使用游标 573
15.5.17 为你的表建立适当的索引 573
15.6 网站安全防护 573
15.6.1 什么是SQL注入式攻击 573
15.6.2 如何防范SQL注入式攻击 574
15.6.3 实现页面验证码 575
15.6.4 实现文件防盗链 579
15.6.5 采用HTTPS进行访问 584
15.7 IIS优化 584
15.7.1 如何监测IIS服务器并发数 584
15.7.2 采用Gzip压缩页面优化 585
15.7.3 网站应用程序池配置 588
15.8 网站架构优化策略 593
本章常见技术面试题 596
职场智慧之独善其身 596
本章小结 599
第16章 系统设计的原则和技巧
16.1 系统设计的一些原则 602
16.1.1 最适合的才是最好的 602
16.1.2 以不变应万变 603
16.1.3 可扩展性 603
16.1.4 可复用性 604
16.2 系统设计的常用方法 604
16.3 敏捷软件开发12条原则 608
16.4 系统架构师成长之路 611
本章常见技术面试题 615
职场智慧之职场政治 615
本章小结 616
第三篇 项目实战解析
第17章 权限角色管理项目解析
17.1 权限角色管理概述 620
17.2 项目概述 623
17.3 数据库设计 624
17.3.1 数据库实体关系模型 624
17.3.2 表结构设计 625
17.4 数据访问层 627
17.4.1 类设计 627
17.4.2 代码实现 629
17.5 业务逻辑层 629
17.5.1 类设计 630
17.5.2 扩展.NET Framework用户处理机制 632
17.6 接口调用与Web管理实现 638
17.6.1 Web.config配置 638
17.6.2 用户身份和权限验证 638
17.6.3 用户验证接口方式：权限验证用户控件 640
17.6.4 用户验证接口方式：页面基类 642
17.6.5 用户和角色权限的后台管理 644
职场智慧之如何提升自己在公司的价值 652
本章小结 653
第18章 单点登录系统的设计与实现
18.1 项目概述 656
18.1.1 名词定义 656
18.1.2 项目需求描述 656
18.2 业务流程设计 657
18.2.1 用户认证流程 657
18.2.2 安全验证流程 658
18.3 功能与接口设计 659
18.3.1 接*互设计 659
18.3.2 应用系统接口 660
18.3.3 认证服务器功能和接口 660
18.4 数据库设计 660
18.4.1 数据库实体关系模型 661
18.4.2 表结构设计 661
18.5 实现认证服务器 662
18.5.1 SSO解决方案 663
18.5.2 系统管理后台 664
18.5.3 用户通行证管理中心 665
18.5.4 认证服务器接口开发 673
18.6 应用系统接入接口开发 675
18.6.1 用户身份认证 675
18.6.2 接收状态同步 676
18.6.3 用户注销 678
18.6.4 更新认证服务器状态 679
18.7 接口封装及调用 679
职场智慧之晋升之道 682
本章小结 684
第19章 常用.NET开发工具介绍
19.1 源码版本管理：Visual SourceSafe 2005 686
19.1.1 安装和配置VSS 2005服务端 686
19.1.2 安装和配置VSS客户端 691
19.1.3 将项目加入VSS版本控制 692
19.1.4 客户端连接VSS 服务器获取源代码 694
19.1.5 设置VSS支持通过Internet访问 696
19.1.6 版本控制的几个概念 701
19.1.7 VSS项目权限管理 703
19.1.8 VSS数据备份 705
19.1.9 VSS 2005的使用规范 707
19.2 单元测试工具：NUnit 708
19.2.1 NUnit简介 708
19.2.2 手把手教你在.NET中应用NUnit 708
19.3 日志工具——Log4net 714
19.3.1 Log4net简介 714
19.3.2 使用步骤 717
19.3.3 单独配置文件的使用 719
19.4 代码规范检查工具：Microsoft Source Analysis for C# 721
19.5 生成文档注释工具：GhostDoc 723
19.6 反编译工具：Reflector for .NET 732
19.7 动软.NET代码生成器 733
19.8 帮助文档生成工具：Sandcastle 737
19.8.1 Sandcastle介绍 737
19.8.2 生成方式 738
19.8.3 具体生成步骤 740
本章小结 748
附录A 软件编码规范
A.1 概述 750
A.1.1 规范基本原则 750
A.1.2 术语定义 750
A.1.3 文件命名组织 750
A.2 代码外观 751
A.2.1 列宽 751
A.2.2 换行 751
A.2.3 缩进 751
A.2.4 空行 751
A.2.5 空格 752
A.2.6 括号——() 753
A.2.7 花括号——{} 753
A.3 程序注释 754
A.3.1 注释概述 754
A.3.2 文档型注释 755
A.3.3 类注释 755
A.3.4 单行注释 755
A.3.5 注释标签 756
A.4 声明 758
A.4.1 每行声明数 758
A.4.2 初始化 758
A.4.3 位置 758
A.4.4 类和接口的声明 759
A.4.5 字段的声明 759
A.5 命名规范 759
A.5.1 命名概述 759
A.5.2 大写规则 760
A.5.3 缩写 761
A.5.4 命名空间 761
A.5.5 类 762
A.5.6 接口 762
A.5.7 属性（Attribute） 763
A.5.8 枚举（Enum） 763
A.5.9 参数 763
A.5.10 方法 764
A.5.11 属性（property） 764
A.5.12 事件 765
A.5.13 常量（const） 766
A.5.14 字段 767
A.5.15 静态字段 768
A.5.16 集合 768
A.5.17 措词 768
A.6 语句 769
A.6.1 每行一个语句 769
A.6.2 复合语句 769
A.6.3 return语句 769
A.6.4 if、if-else、if else-if语句 770
A.6.5 for、foreach 语句 770
A.6.6 while语句 771
A.6.7 do-while语句 771
A.6.8 switch-case语句 771
A.6.9 try-catch语句 772
A.6.10 using块语句 772
A.6.11 goto语句 772
A.7 其他 773
A.7.1 表达式 773
A.7.2 类型转换 773
A.8 匈牙利命名法 773
A.9 控件命名规则 774
A.9.1 一般命名方法 774
A.9.2 主要控件名简写对照表 774
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Description: Drag and Drop Component Suite Version 4.1 Field test 5, released 16-dec-2001 ?1997-2001 Angus Johnson & Anders Melander http://www.melander.dk/delphi/dragdrop/ ------------------------------------------- Table of Contents: ------------------------------------------- 1. Supported platforms 2. Installation 3. Getting started 4. Known problems 5. Support and feedback 6. Bug reports 7. Upgrades and bug fixes 8. Missing in this release 9. New in version 4.x 10. TODO 11. Licence, Copyright and Disclaimer 12. Release history ------------------------------------------- 1. Supported platforms: ------------------------------------------- This release supports Delphi 4-6 and C++ Builder 4-5. Earlier versions of Delphi and C++ Builder will not be supported. If you need Delphi 3 or C++ Builder 3 support you will have to revert to version 3.7 of the Drag and Drop Component Suite. The library has been tested on NT4 service pack 5 and Windows 2000. Windows 95, 98, ME and XP should be supported, but has not been tested. Linux and Kylix are not supported. There are *NO* plans to port the library to Kylix. The drag and drop protocols available on Linux are too much of a mess at this time. ------------------------------------------- 2. Installation: ------------------------------------------- 1) Before you do anything else, read the "Known problems" section of this document. 2) Install the source into a directory of your choice. The files are installed into three directories: DragDrop DragDrop\Components DragDrop\Demo 3) Install and compile the appropriate design time package. The design time packages are located in the Components directory. Each version of Delphi and C++ Builder has its own package; DragDropD6.dpk for Delphi 6, DragDropD5.dpk for Delphi 5, DragDropC5.bpk for C++ Builder 5, etc. 4) Add the Drag and Drop Component Suite components directory to your library path. 5) Load the demo project group: demo\dragdrop_delphi.bpg for Delphi 5 and 6 demo\dragdrop_bcb4.bpg for C++ Builder 4 demo\dragdrop_bcb5.bpg for C++ Builder 5 The project group contains all the demo applications. 6) If your version of Delphi does not support text format DFM files (e.g. Delphi 4 doesn't), you will have to use the convert.exe utility supplied with Delphi to convert all the demo form files to binary format. A batch file, convert_forms_to delphi_4_format.bat, is supplied in the demo directory which automates the conversion process. The C++ Builder demo forms are distributed in binary format. 7) If upgrading from a previous version of the Drag and Drop Component Suite, please read the document "upgrading_to_v4.txt" before you begin working on your existing projects. Note about "Property does not exist" errors: Since all demos were developed with the latest version of Delphi, most of the demo forms probably contains references to properties that doesn't exist in earlier versions of Delphi and C++ Builder. Because of this you will get fatal run-time errors (e.g. "Error reading blahblahblah: Property does not exist.") if you attemt to run the demos without fixing this problem. Luckily it is very easy to make the forms work again; Just open the forms in the IDE, then select "Ignore All" when the IDE complains that this or that property doesn't exist and finally save the forms. ------------------------------------------- 3. Getting started: ------------------------------------------- It is recommended that you start by running each of the demo applications and then look through the demo source. Each demo application is supplied with a readme.txt file which briefly describes what the demo does and what features it uses. The demos should be run in the order in which they are listed in the supplied project group. Even if you have used previous versions of the Drag and Drop Component Suite it would be a good idea to have a quick look at the demos. The library has been completely rewritten and a lot of new features has been added. ------------------------------------------- 4. Known problems: ------------------------------------------- * The Shell Extension components does not support C++ Builder 4. For some strange reason the components causes a link error. * There appear to be sporadic problems compiling with C++ Builder 5. Several user have reported that they occasionally get one or more of the following compiler errors: [C++ Error] DragDropFile.hpp(178): E2450 Undefined structure '_FILEDESCRIPTORW' [C++ Error] DropSource.hpp(135): E2076 Overloadable operator expected I have not been able to reproduce these errors, but I believe the following work around will fix the problem: In the project options of *all* projects which uses these components, add the following conditional define: NO_WIN32_LEAN_AND_MEAN The define *must* be made in the project options. It is not sufficient to #define it in the source. If you manage to compile with C++ Builder (any version), I would very much like to know about it. * Delphi's and C++ Builder's HWND and THandle types are not compatible. For this reason it might be nescessary to cast C++ Builder's HWND values to Delphi's THandle type when a HWND is passed to a function. E.g.: if (DragDetectPlus(THandle(MyControl->Handle), Point(X, Y))) { ... } * Virtual File Stream formats can only be pasted from the clipboard with live data (i.e. FlushClipboard/OleFlushClipboard hasn't been called on the data source). This problem affects TFileContentsStreamOnDemandClipboardFormat and the VirtualFileStream demo. This is believed to be a bug in the Windows clipboard and a work around hasn't been found yet. * Asynchronous targets appears to be broken in the current release. * When TDropFileTarget.GetDataOnEnter is set to True, the component doesn't work with WinZip. Although the file names are received correctly by TDropFileTarget, WinZip doesn't extract the files and the files thus can't be copied/moved. This is caused by a quirk in WinZip; Apparently WinZip doesn't like IDataObject.GetData to be called before IDropTarget.Drop is called. ------------------------------------------- 5. Support and feedback: ------------------------------------------- Since these components are freeware they are also unsupported. You are welcome to ask for help via email, but I cannot guarantee that I will have time to help you or even reply to your mail. If you absolytely can't live without my help, you can alway try bribing me. You can also try asking for help in the Delphi newsgroups. Since the Drag and Drop Component Suite is in widespread use, there's a good chance another user can help you. I recommend the following newsgroups for issues regarding this library (or COM based Drag/Drop in general): borland.public.delphi.winapi borland.public.delphi.thirdparty-tools borland.public.delphi.oleautomation borland.public.cppbuilder.winapi borland.public.cppbuilder.thirdparty-tools Please choose the most appropiate newsgroup for your question. Do not cross post to them all. Before posting to the newsgroups, I suggest you try to search for an answer on the Google (DejaNews) search engine: http://groups.google.com Chances are that your question has been asked and answered before. If you have suggestions for improvements please mail them to me: anders@melander.dk Please include the words "Drag Drop" in the subject of any email regarding these components. ------------------------------------------- 6. Bug reports: ------------------------------------------- Bugs can either be reported at my home page (http://www.melander.dk/) or mailed directly to me: anders@melander.dk. When reporting a bug, please provide the following information: * The exact version of the Drag and Drop Component Suite you are using. * The exact version of Delphi or C++ Builder you are using. * The name and exact version of your operating system (e.g. NT4 SP5). * The exact version of the Internet Explorer installed on your system. If you can provide me with a minimal application which reproduces the problem, I can almost guarantee that I will be able to fix the problem in very short time. Please supply only the source files (pas, dfm, dpr, dof, res, etc.) and mail them as a single zip file. If I need a compiled version I will ask for it. If you feel you need to send me a screen shot, please send it in GIF or PNG format. If you mail a bug report to me, please include the words "Drag Drop" in the subject of your email. ------------------------------------------- 7. Upgrades and bug fixes: ------------------------------------------- Upgrades can be downloaded from my home page: http://www.melander.dk/delphi/dragdrop/ Bug fixes will also be posted to the above page. If you have registered for update notification via the installation program, you will receive email notification when a new release is available. You will not be notified of bug fixes. You can use the installation program to check for and download new releases and to check for known bugs. Note: If a new release is made available and you are not notified even though you registered for notification, you probably mistyped your email address during installation; About 10% of all registrations supply an invalid email address. ------------------------------------------- 8. Missing in this release: ------------------------------------------- * On-line help has not been updated and included in the kit due to late changes in the Delphi 6 help system and lack of time. If time permits, I will update the help and include it in a future release. ------------------------------------------- 9. New in version 4.x: ------------------------------------------- * Completely redesigned and rewritten. Previous versions of the Drag and Drop Component Suite used a very monolithic design and flat class hierachy which made it a bit cumbersome to extend the existing components or implement new ones. Version 4 is a complete rewrite and redesign, but still maintains compatibility with previous versions. The new V4 design basically separates the library into three layers: 1) Clipboard format I/O. 2) Data format conversion and storage. 3) COM Drag/Drop implementation and VCL component interface. The clipboard format layer is responsible for reading and writing data in different formats to and from an IDataObject interface. For each different clipboard format version 4 implements a specialized class which knows exactly how to interpret the clipboard format. For example the CF_TEXT (plain text) clipboard format is handled by the TTextClipboardFormat class and the CF_FILE (file names) clipboard format is handled by the TFileClipboardFormat class. The data format layer is primarily used to render the different clipboard formats to and from native Delphi data types. For example the TTextDataFormat class represents all text based clipboard formats (e.g. TTextClipboardFormat) as a string while the TFileDataFormat class represents a list of file names (e.g. TFileClipboardFormat) as a string list. The conversion between different data- and clipboard formats is handled by the same Assign/AssignTo mechanism as the VCLs TPersistent employes. This makes it possible to extend existing data formats with support for new clipboard formats without modification to the existing classes. The drag/drop component layer has several tasks; It implements the actual COM drag/drop functionality (i.e. it implements the IDropSource, IDropTarget and IDataObject interfaces (along with several other related interfaces)), it surfaces the data provided by the data format layer as component properties and it handles the interaction between the whole drag/drop framework and the users code. The suite provides a multitude of different components. Most are specialized for different drag/drop tasks (e.g. the TDropFileTarget and TDropFilesSource components for drag/drop of files), but some are either more generic, handling multiple unrelated formats, or simply helper components which are used to extend the existing components or build new ones. * Support for Delphi 6. Version 4.0 was primarily developed on Delphi 6 and then ported back to previous versions of Delphi and C++ Builder. * Support for Windows 2000 inter application drag images. On Windows platforms which supports it, drag images are now displayed when dragging between applications. Currently only Windows 2000 supports this feature. On platforms which doesn't support the feature, drag images are only displayed whithin the source application. * Support for Windows 2000 asynchronous data transfers. Asynchronous data tranfers allows the drop source and targets to perform slow transfers or to transfer large amounts of data without blocking the user interface while the data is being transfered. For platforms other than Windows 2000, the new TDropSourceThread class can be used to provide similar (but more limited) asynchronous data transfer capabilities. * Support for optimized and non-optimized move. When performing drag-move operations, it is now possible to specify if the target (optimized move) or the source (non-optimized move) is responsible for deleting the source files. * Support for delete-on-paste. When data is cut to the clipboard, it is now possible to defer the deletion of the source data until the target actually pastes the data. The source is notified by an event when the target pastes the data. * Extended clipboard support. All formats and components (both source and target) now support clipboard operations (copy/cut/paste) and the VCL clipboard object. * Support for shell drop handlers. The new TDropHandler component can be used to write drop handler shell extensions. A drop handler is a shell extension which is executed when a user drags and drops one or more files on a file associated wth your application. * Support for shell drag drop handlers. The new TDragDropHandler component can be used to write drag drop handler shell extensions. A drag drop handler is a shell extension which can extend the popup menu which is displayed when a user drag and drops files with the right mouse button. * Support for shell context menu handlers. The new TDropContextMenu component can be used to write context menu handler shell extensions. A context menu handler is a shell extension which can extend the popup menu which is displayed when a user right-clicks a file in the shell. * Drop sources can receive data from drop targets. It is now possible for drop targets to write data back to the drop source. This is used to support optimized-move, delete-on-paste and inter application drag images. * Automatic re-registration of targets when the target window handle is recreated. In previous versions, target controls would loose their ability to accept drops when their window handles were recreated by the VCL (e.g. when changing the border style or docking a form). This is no longer a problem. * Support for run-time definition of custom data formats. You can now add support for new clipboard formats without custom components. * Support for design-time extension of existing source and target components. Using the new TDataFormatAdapter component it is now possible to mix and match data formats and source and target components at design time. E.g. the TDropFileTarget component can be extended with URL support. * It is now possible to completely customize the target auto-scroll feature. Auto scroling can now be completely customized via the OnDragEnter, OnDragOver, OnGetDropEffect and OnScroll events and the public NoScrollZone and published AutoScroll properties. * Multiple target controls per drop target component. In previous versions you had to use one drop target component per target control. With version 4, each drop target component can handle any number of target controls. * It is now possible to specify the target control at design time. A published Target property has been added to the drop target components. * Includes 20 components: - TDropFileSource and TDropFileTarget Used for drag and drop of files. Supports recycle bin and PIDLs. - TDropTextSource and TDropTextTarget Used for drag and drop of text. - TDropBMPSource and TDropBMPTarget Used for drag and drop of bitmaps. - TDropPIDLSource and TDropPIDLTarget Used for drag and drop of PIDLs in native format. - TDropURLSource and TDropURLTarget Used for drag and drop of internet shortcuts. - TDropDummyTarget Used to provide drag/drop cursor feedback for controls which aren't registered as drop targets. - TDropComboTarget (new) Swiss-army-knife target. Accepts text, files, bitmaps, meta files, URLs and file contents. - TDropMetaFileTarget (new) Target which can accept meta files and enhanced meta files. - TDropImageTarget (new) Target which can accept bitmaps, DIBs, meta files and enhanced meta files. - TDragDropHandler (new) Used to implement Drag Drop Handler shell extensions. - TDropHandler (new) Used to implement Shell Drop Handler shell extensions. - TDragDropContext (new) Used to implement Shell Context Menu Handler shell extensions. - TDataFormatAdapter (new) Extends the standard source and target components with support for extra data formats. An alternative to TDropComboTarget. - TDropEmptySource and TDropEmptyTarget (new) Target and source components which doesn't support any formats, but can be extended with TDataFormatAdapter components. * Supports 27 standard clipboard formats: Text formats: - CF_TEXT (plain text) - CF_UNICODETEXT (Unicode text) - CF_OEMTEXT (Text in the OEM characterset) - CF_LOCALE (Locale specification) - 'Rich Text Format' (RTF text) - 'CSV' (Tabular spreadsheet text) File formats: - CF_HDROP (list of file names) - CF_FILEGROUPDESCRIPTOR, CF_FILEGROUPDESCRIPTORW and CF_FILECONTENTS (list of files and their attributes and content). - 'Shell IDList Array' (PIDLs) - 'FileName' and 'FileNameW' (single filename, used for 16 bit compatibility). - 'FileNameMap' and 'FileNameMapW' (used to rename files, usually when dragging from the recycle bin) Image formats: - CF_BITMAP (Windows bitmap) - CF_DIB (Device Independant Bitmap) - CF_METAFILEPICT (Windows MetaFile) - CF_ENHMETAFILE (Enhanced Metafile) - CF_PALETTE (Bitmap palette) Internet formats: - 'UniformResourceLocator' and 'UniformResourceLocatorW' (Internet shortcut) - 'Netscape Bookmark' (Netscape bookmark/URL) - 'Netscape Image Format' (Netscape image/URL) - '+//ISBN 1-887687-00-9::versit::PDI//vCard' (V-Card) - 'HTML Format' (HTML text) - 'Internet Message (rfc822/rfc1522)' (E-mail message in RFC822 format) Misc. formats: - CF_PREFERREDDROPEFFECT and CF_PASTESUCCEEDED (mostly used by clipboard) - CF_PERFORMEDDROPEFFECT and CF_LOGICALPERFORMEDDROPEFFECT (mostly used for optimized-move) - 'InShellDragLoop' (used by Windows shell) - 'TargetCLSID' (Mostly used when dragging to recycle-bin) * New source events: - OnGetData: Fired when the target requests data. - OnSetData: Fired when the target writes data back to the source. - OnPaste: Fired when the target pastes data which the source has placed on the clipboard. - OnAfterDrop: Fired after the drag/drop operation has completed. * New target events: - OnScroll: Fires when the target component is about to perform auto-scroll on the target control. - OnAcceptFormat: Fires when the target component needs to determine if it will accept a given data format. Only surfaced in the TDropComboTarget component. * 8 new demo applications, 19 in total. ------------------------------------------- 10. TODO (may or may not be implemented): ------------------------------------------- * Async target demo (with and without IAsyncOperation support). * Scrap file demo. * Native Outlook message format. * Structured storage support (IStorage encapsulation). ------------------------------------------- 11. Licence, Copyright and Disclaimer: ------------------------------------------- The Drag and Drop Component Suite is Copyright ?1997-2001 Angus Johnson and Anders Melander. All rights reserved. The software is copyrighted as noted above. It may be freely copied, modified, and redistributed, provided that the copyright notice(s) is preserved on all copies. The Drag and Drop Component Suite is freeware and we would like it to remain so. This means that it may not be bundled with commercial libraries or sold as shareware. You are welcome to use it in commercial and shareware applications providing you do not charge for the functionality provided by the Drag and Drop Component Suite. There is no warranty or other guarantee of fitness for this software, it is provided solely "as is". You are welcome to use the source to make your own modified components, and such modified components may be distributed by you or others if you include credits to the original components, and do not charge anything for your modified components. ------------------------------------------- 12. Version 4 release history: ------------------------------------------- 16-dec-2001 * Ported to C++ Builder 4. * Released for test as v4.1 FT5. 12-dec-2001 * Fixed C++ Builder name clash between TDropComboTarget.GetMetaFile and the GetMetaFile #define in wingdi.h 1-dec-2001 * The IAsyncOperation interface is now also declared as IAsyncOperation2 and all references to IAsyncOperation has been replaced with IAsyncOperation2. This was done to work around a bug in C++ Builder. Thanks to Jonathan Arnold for all his help with getting the components to work with C++ Builder. Without Jonathan's help version 4.1 would prabably have shipped witout C++ Builder support and certainly without any C++ Builder demos. * Demo applications for C++ Builder. The C++ Builder demos were contributed by Jonathan Arnold. 27-nov-2001 * TCustomDropTarget.Droptypes property renamed to DropTypes (notice the case). Thanks to Krystian Brazulewicz for spotting this. 24-nov-2001 * The GetURLFromString function in the DragDropInternet unit has been made public due to user request. 21-nov-2001 * Modified MakeHTML function to comply with Microsoft's description of the CF_HTML clipboard format. * Added MakeTextFromHTML function to convert CF_HTML data to plain HTML. Provides the reverse functionality of MakeHTML. * Added HTML support to TTextDataFormat class and TDropTextSource and TDropTextTarget components. * Fixed C++ Builder 5 problem with IAsyncOperation. * Released for test as v4.1 FT4. 10-nov-2001 * Added NetscapeDemo demo application. Demonstrates how to receive messages dropped from Netscape. This demo was sponsored by ThoughtShare Communications Inc. * Released for test as v4.1 FT3. 23-oct-2001 * Conversion priority of TURLDataFormat has been changed to give the File Group Descritor formats priority over the Internet Shortcut format. This resolves a problem where dropping an URL on the desktop would cause the desktop to assume that an Active Desktop item was to be created instead of an Internet Shortcut. Thanks to Allen Martin for reporting this problem. By luck this modification also happens to work around a bug in Mozilla and Netscape 6; Mozilla incorrectly supplies the UniformResourceLocator clipboard format in unicode format instead of ANSI format. Thanks to Florian Kusche for reporting this problem. * Added support for TFileGroupDescritorWClipboardFormat to TURLDataFormat. * Added declaration of FD_PROGRESSUI to DragDropFormats. * Added TURLWClipboardFormat which implements the "UniformResourceLocatorW" (a.k.a. CFSTR_INETURLW) clipboard format. Basically a Unicode version of CFSTR_SHELLURL/CFSTR_INETURL. The TURLWClipboardFormat class isn't used anywhere yet but will probably be supported by TURLDataFormat (and thus TDropURLTarget/TDropURLSource) in a later release. * Added experimental Shell Drag Image support. This relies on undodumented shell32.dll functions and probably won't be fully support before v4.2 (if ever). See InitShellDragImage in DropSource.pas. Thanks to Jim Kueneman for bringning these functions to my attention. 13-oct-2001 * TCustomDropSource.Destroy and TCustomDropMultiSource.Destroy changed to call FlushClipboard instead of EmptyClipboard. This means that clipboard contents will be preserved when the source application/component is terminated. * Added clipboard support to VirtualFileStream demo. * Modified VirtualFileStream demo to work around clipboard quirk with IStream medium. * Modified TCustomSimpleClipboardFormat to disable TYMED_ISTORAGE support by default. At present TYMED_ISTORAGE is only supported for drop targets and enabling it by default in TCustomSimpleClipboardFormat.Create caused a lot of clipboard operations (e.g. copy/paste of text) to fail. Thanks to Michael J Marshall for bringing this problem to my attention. * Modified TCustomSimpleClipboardFormat to read from the the TYMED_ISTREAM medium in small (1Mb) chunks and via a global memory buffer. This has resultet in a huge performance gain (several orders of magnitude) when transferring large amounts of data via the TYMED_ISTREAM medium. 3-oct-2001 * Fixed bug in TCustomDropSource.SetImageIndex. Thanks to Maxim Abramovich for spotting this. * Added missing default property values to TCustomDropSource. Thanks to Maxim Abramovich for spotting this. * DragDrop.pas and DragDropContext.pas updated for Delphi 4. * Reimplemented utility to convert DFM form files from Delphi 5/6 test format to Delphi 4/5 binary format. * Improved unregistration of Shell Extensions. Shell extension now completely (and safely) remove their registry entries when unregistered. * Deprecated support for C++ Builder 3. * Released for test as v4.1 FT2. 25-sep-2001 * Rewritten ContextMenuHandlerShellExt demo. The demo is now actually a quite useful utility which can be used to register and unregister ActiveX controls, COM servers and type libraries. It includes the same functionality as Borland's TRegSvr utility. 20-sep-2001 * Added support for cascading menus, ownerdraw and menu bitmaps to TDropContextMenu component. * Modified TFileContentsStreamOnDemandClipboardFormat to handle invalid parameter value (FormatEtcIn.lindex) when data is copied to clipboard. This works around an apparent bug in the Windows clipboard. Thanks to Steve Moss for reporting this problem. * Modified TEnumFormatEtc class to not enumerate empty clipboard formats. Thanks to Steve Moss for this improvement. 1-sep-2001 * Introduced TCustomDropTarget.AutoRegister property. The AutoRegister property is used to control if drop target controls should be automatically unregistered and reregistered when their window handle is recreated by the VCL. If AutoRegister is True, which is the default, then automatic reregistration will be performed. This property was introduced because the hidden child control, which is used to monitor the drop target control's window handle, can have unwanted side effects on the drop target control (e.g. TToolBar). * Deprecated support for Delphi 3. 22-jun-2001 * Redesigned TTextDataFormat to handle RTF, Unicode, CSV and OEM text without conversion. Moved TTextDataFormat class to DragDropText unit. Added support for TLocaleClipboardFormat. * Surfaced new text formats as properties in TDropTextSource and TDropTextTarget. Previous versions of the Text source and target components represented all supported text formats via the Text property. In order to enable users to handle the different text formats independantly, the text source and target components now has individual properties for ANSI, OEM, Unicode and RTF text formats. The text target component can automatically synthesize some of the formats from the others (e.g. OEM text from ANSI text), but applications which previously relied on all formats being represented by the Text property will have to be modified to handle the new properties. * Added work around for problem where TToolBar as a drop target would display the invisible target proxy window. * Fixed wide string bug in WriteFilesToZeroList. Thanks to Werner Lehmann for spotting this. 15-jun-2001 * Added work-around for Outlook Express IDataObject.QueryGetData quirk. 3-jun-2001 * Ported to C++ Builder 4 and 5. * Added missing DragDropDesign.pas unit to design time packages. * First attempt at C++ Builder 3 port.... failed. * Improved handling of oversized File Group Descriptor data. * Added support for IStorage medium to TFileContentsStreamClipboardFormat. This allows the TDropComboTarget component to accept messages dropped from Microsoft Outlook. This work was sponsored by ThoughtShare Communications Inc. 23-may-2001 * Ported to Delphi 4. * First attempt at C++ Builder 5 port.... failed. 18-may-2001 * Released as version 4.0. Note: Version 4.0 was released exclusively on the Delphi 6 Companion CD. * ContextMenuDemo and DropHandlerDemo application has been partially rewritten and renamed. ContextMenuDemo is now named ContextMenuHandlerShellExt. DropHandlerDemo is now named DropHandlerShellExt. * TDropContextMenu component has been rewitten. The TDropContextMenu now implements a context menu handler shell extension. In previous releases it implemented a drag drop handler shell extension. * The DragDropHandler.pas unit which implements the TDropHandler component has been renamed to DropHandler.pas. * Added new TDragDropHandler component. The new component, which lives in the DragDropHandler unit, is used to implement drag drop handler shell extensions. * Added DragDropHandlerShellExt demo application. * Removed misc incomplete demos from kit. * Fixed minor problem in VirtualFileStream demo which caused drops from the VirtualFile demo not to transfer content correctly. 11-may-2001 * Converted all demo forms to text DFM format. This has been nescessary to maintain compatibility between all supported versions of Delphi. * Fixed a bug in GetPIDLsFromFilenames which caused drag-link of files (dtLink with TDropFileSource) not to work. * Added readme.txt files to some demo applications. * Added missing tlb and C++ Builder files to install kit. * Released as FT4. 6-may-2001 * Added missing dfm files to install kit. * Tested with Delphi 5. Fixed Delphi 5 compatibility error in main.dfm of DragDropDemo. * Removed misc compiler warnings. * The AsyncTransferTarget and OleObjectDemo demos were incomplete and has been removed from the kit for the V4.0 release. The demos will be included in a future release. * Released as FT3. 3-may-2001 * Added missing dpr and bpg files to install kit. * Updated readme.txt with regard to lack of C++ Builder demos. * Released as FT2. 29-apr-2001 * Cleaned up for release. * Released as FT1. 23-feb-2001 * Modified TCustomDropTarget.FindTarget to handle overlapping targets (e.g. different targets at the same position but on different pages of a page control or notebook). Thanks to Roger Moe for spotting this problem. 13-feb-2001 * Renamed AsyncTransfer2 demo to AsyncTransferSource. * Added AsyncTransferTarget demo. * Replaced TChart in AsyncTransfer2 demo with homegrown pie-chart-thing. * Modified all IStream based target formats to support incremental transfer. * URW533 problem has finally been fixed. The cause of the problem, which is a bug in Delphi, was found by Stefan Hoffmeister. * Fixed free notification for TDropContextmenu and TDataFormatAdapter. 27-dec-2000 * Moved TVirtualFileStreamDataFormat and TFileContentsStreamOnDemandClipboardFormat classes from VirtualFileStream demo to DragDropFormats unit. * Added TClipboardFormat.DataFormat and TClipboardFormats.DataFormat property. * Added TDropEmptySource and TDropEmptyTarget components. These are basically do-nothing components for use with TDataFormatAdapter. * Rewritten AsyncTransfer2 demo. The demo now uses TDropEmptySource, TDataFormatAdapter and TVirtualFileStreamDataFormat to transfer 10Mb of data with progress feedback. * Rewritten VirtualFileStream demo. The demo now uses TDropEmptySource, TDropEmptyTarget, TDataFormatAdapter and TVirtualFileStreamDataFormat. * Fixed memory leak in TVirtualFileStreamDataFormat. This leak only affected the old VirtualFileStream demo. * Added support for full File Descriptor attribute set to TVirtualFileStreamDataFormat. It is now possible to specify file attributes such as file size and last modified time in addition to the filename. I plan to add similar features to the other classes which uses FileDescriptors (e.g. TDropFileSource and TDropFileTarget). 21-dec-2000 * Ported to Delphi 4. * Added workaround for design bug in either Explorer or the clipboard. Explorer and the clipboard's requirements to the cursor position of an IStream object are incompatible. Explorer requires the cursor to be at the beginning of stream and the clipboard requires the cursor to be at the end of stream. 15-dec-2000 * Fixed URW533 problem. I'll leave the description of the workaround in here for now in case the problem resurfaces. 11-dec-2000 * Fixed bug in filename to PIDL conversion (GetPIDLsFromFilenames) which affected TDropFileTarget. Thanks to Poul Halgaard J鴕gensen for reporting this. 4-dec-2000 * Added THTMLDataFormat. * Fixed a a few small bugs which affected clipboard operations. * Added {$ALIGN ON} to dragdrop.inc. Apparently COM drag/drop requires some structures to be word alligned. This change fixes problems where some of the demos would suddenly stop working. * The URW533 problem has resurfaced. See the "Known problems" section below. 13-nov-2000 * TCopyPasteDataFormat has been renamed to TFeedbackDataFormat. * Added support for the Windows 2000 "TargetCLSID" format with the TTargetCLSIDClipboardFormat class and the TCustomDropSource.TargetCLSID property. * Added support for the "Logical Performed DropEffect" format with the TLogicalPerformedDropEffectClipboardFormat class. The class is used internally by TCustomDropSource. 30-oct-2000 * Added ContextMenu demo and TDropContextMenu component. Demonstrates how to customize the context menu which is displayed when a file is dragged with the right mouse button and dropped in the shell. * Added TCustomDataFormat.GetData. With the introduction of the GetData method, Data Format classes can now be used stand-alone to extract data from an IDataObject. 20-oct-2000 * Added VirtualFileStream demo. Demonstrates how to use the "File Contents" and "File Group Descritor" clipboard formats to drag and drop virtual files (files which doesn't exist physically) and transfer the data on-demand via a stream. 14-oct-2000 * Added special drop target registration of TCustomRichEdit controls. TCustomRichEdit needs special attention because it implements its own drop target handling which prevents it to work with these components. TCustomDropTarget now disables a rich edit control's built in drag/drop handling when the control is registered as a drop target. * Added work around for Windows bug where IDropTarget.DragOver is called regardless that the drop has been rejected in IDropTarget.DragEnter. 12-oct-2000 * Fixed bug that caused docking to interfere with drop targets. Thanks to G. Bradley MacDonald for bringing the problem to my attention. 30-sep-2000 * The DataFormats property has been made public in the TCustomDropMultiTarget class. * Added VirtualFile demo. Demonstrates how to use the TFileContentsClipboardFormat and TFileGroupDescritorClipboardFormat formats to drag and drop a virtual file (a file which doesn't exist physically). 28-sep-2000 * Improved drop source detection of optimized move. When an optimized move is performed by a drop target, the drop source's Execute method will now return drDropMove. Previously drCancel was returned. The OnAfterDrop event must still be used to determine if a move operation were optimized or not. * Modified TCustomDropTarget.GetPreferredDropEffect to get data from the current IDataObject instead of from the VCL global clipboard. 18-sep-2000 * Fixed bug in DropComboTarget caused by the 17-sep-2000 TStreams modification. 17-sep-2000 * Added AsyncTransfer2 demo to demonstrate use of TDropSourceThread. * Renamed TStreams class to TStreamList. 29-aug-2000 * Added TDropSourceThread. TDropSourceThread is an alternative to Windows 2000 asynchronous data transfers but also works on other platforms than Windows 2000. TDropSourceThread is based on code contributed by E. J. Molendijk. 24-aug-2000 * Added support for Windows 2000 asynchronous data transfers. Added IAsyncOperation implementation to TCustomDropSource. Added TCustomDropSource.AllowAsyncTransfer and AsyncTransfer properties. 5-aug-2000 * Added work around for URW533 compiler bug. * Fixed D4 and D5 packages and updated a few demos. Obsolete DropMultiTarget were still referenced a few places. * Documented work around for C++ Builder 5 compiler error. See the Known Problems section later in this document for more information. 2-aug-2000 * The package files provided in the kit is now design-time only packages. In previous versions, the packages could be used both at design- and run-time. The change was nescessary because the package now contains design-time code. * Added possible work around for suspected C++ Builder bug. The bug manifests itself as a "Overloadable operator expected" compile time error. See the "Known problems" section of this document. * Rewrote CustomFormat1 demo. * Added CustomFormat2 demo. * TDataDirection members has been renamed from ddGet and ddSet to ddRead and ddWrite. * All File Group Descritor and File Contents clipboard formats has been moved from the DragDropFile unit to the DragDropFormats unit. * File Contents support has been added to TTextDataFormat. The support is currently only enabled for drop sources. * Renamed TDropMultiTarget component to TDropComboTarget. Note: This will break applications which uses the TDropMultiTarget component. You can use the following technique to port application from previous releases: 1) Install the new components. 2) Repeat step 3-8 for all units which uses the TDropMultiTarget component. 3) Make a backup of the unit (both pas and dfm file) just in case... 4) Open the unit in the IDE. 5) In the .pas file, replace all occurances of "TDropMultiTarget" with "TDropComboTarget". 6) View the form as text. 7) Replace all occurances of "TDropMultiTarget" with "TDropComboTarget". 8) Save the unit. * Renamed a lot of demo files and directories. * Added work around for yet another bug in TStreamAdapter. * Added TCustomStringClipboardFormat as new base class for TCustomTextClipboardFormat. This changes the class hierachy a bit for classes which previously descended from TCustomTextClipboardFormat: All formats which needs zero termination now descend from TCustomTextClipboardFormat and the rest descend from TCustomStringClipboardFormat. Added TrimZeroes property. Fixed zero termination bug in TCustomTextClipboardFormat and generally improved handling of zero terminated strings. Disabled zero trim in TCustomStringClipboardFormat and enabled it in TCustomTextClipboardFormat. 23-jul-2000 * Improved handling of long file names in DropHandler demo. Added work around for ParamStr bug. * Added TDataFormatAdapter component and adapter demo. TDataFormatAdapter is used to extend the existing source and target components with additional data format support without modifying them. It can be considered an dynamic alternative to the current TDropMultiTarget component. 17-jul-2000 * TDropHandler component and DropHandler demo fully functional. 14-jul-2000 * Tested with C++ Builder 5. * Fixed sporadic integer overflow bug in DragDetectPlus function. * Added shell drop handler support with TDropHandler component. This is a work in progress and is not yet functional. 1-jul-2000 * Tested with Delphi 4. * Support for Windows 2000 inter application drag images. * TRawClipboardFormat and TRawDataFormat classes for support of arbitrary unknown clipboard formats. The classes are used internally in the TCustomDropSource.SetData method to support W2K drag images.
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Description: HttpInterface-master 基于http、soket的get、post，可以用于下载网页 访问 下载文件 向目标网站发送字符串 或者 文件(HttpInterface-master, based on HTTP and soket's get and post, can be used to download web pages, access downloaded files, and send strings or files to target sites)
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Description: 1、分页
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