ofd先行者

pcm格式是音频非压缩格式。如果要对音频文件播放，需要先转换为pcm格式。 windows提供了多套函数用于播放，本文介绍Waveform Audio Functions系列函数。 原始的播放函数比较难用，因工作需要，我写了一个播放器，将播放相关函数封装了；非常好用，还不易出错。

Take performance to the next level! This book does not just teach you how the CLR works---it teaches you exactly what you need to do now to obtain the best performance today. It will expertly guide you through the nuts and bolts of extreme performance optimization in .NET, complete with in-depth examinations of CLR functionality, free tool recommendations and tutorials, useful anecdotes, and step-by-step guides to measure and improve performance. This second edition incorporates the advances and improvements in .NET over the last few years, as well as greatly expanded coverage of tools, more topics, more tutorials, more tips, and improvements throughout the entire book. New in the 2nd Edition: 50% increase in content! New examples, code samples, and diagrams throughout entire book More ways to analyze the heap and find memory problems More tool coverage, including expanded usage of Visual Studio More benchmarking New GC configuration options Code warmup techniques New .NET features such as ref-returns, value tuples, SIMD, and more More detailed analysis of LINQ Tips for high-level feature areas such as ASP.NET, ADO.NET, and WPF

.net core 2018最新版 pdf Build cross-platform solutions with .NET Core 2.0 through real-life scenarios Key Features Bridges the gap between learning and doing and improves your software development skills Covers the best practices of .NET development to improve your productivity Example-based approach to get you started quickly with software programming Book Description With the rise in the number of tools and technologies available today, developers and architects are always exploring ways to create better and smarter solutions. Before, the differences between target platforms was a major roadblock, but that's not the case now. .NET Core 2.0 By Example will take you on an exciting journey to building better software. This book provides fresh and relevant content to .NET Core 2.0 in a succinct format that s enjoyable to read. It also delivers concepts, along with the implications, design decisions, and potential pitfalls you might face when targeting Linux and Windows systems, in a logical and simple way.

完成端口（IOCP）性能测试程序（c++版本 64位程序。完成端口测试程序，可以测试程序性能，没有代码。收发操作只针对字节流。只能用于测试，不能用于商业。 通过此程序可以体会iocp性能。

完成端口测试程序，可以测试程序性能，没有代码。收发操作只针对字节流。只能用于测试，不能用于商业。网络库有一些限制，后果自负。

单线程实现同时监听多个端口（windows平台c++代码）。文章查看https://www.cnblogs.com/yuanchenhui/p/icop_accept.html

通过实例揭示了，远程过程调用的原理。文章看博客园 https://www.cnblogs.com/yuanchenhui/p/remoteCall.html

H264是当今流行的视频压缩格式；ffmpeg是一个开源库，实现了对h264视频文件的解压缩。 为了降低使用ffmpeg的复杂性，尽量隐藏实现细节，我写了一个封装库。c#也可以很方便的使用此库。解压后的数据可以为yuv格式，也可以为rgb格式。同时可以对rgb格式视频做缩放。 类H264Decode实现了所有解码功能。最后，再把此类封装成c函数，以便于与c#交互。

英文原版，已转成pdf格式。 Enterprise Application Architecture with .NET Core by Ganesan Senthilvel English | 25 Apr. 2017 | ASIN: B01M18CQNP | 564 Pages | AZW3 | 9.94 MB Architect and design highly scalable, robust, clean and highly performant applications in .NET Core 1.0 About This Book Incorporate architectural soft-skills such as DevOps and Agile methodologies to enhance program-level objectives Gain knowledge of architectural approaches on the likes of SOA architecture and microservices to provide traceability and rationale for architectural deci sions Explore a variety of practical use cases and code examples to implement the tools and techniques described in the book Who This Book Is For This book is for experienced .NET developers who are aspiring to become architects of enterprise-grade applications, as well as software architects who would like to leverage .NET to create effective blueprints of applications. What You Will Learn Grasp the important aspects and best practices of application lifecycle management Leverage the popular ALM tools, application insights, and their usage to monitor performance, testability, and optimization tools in an enterprise Explore various authentication models such as social media-based authentication, 2FA and OpenID Connect, learn authorization techniques Explore Azure with various solution approaches for Microservices and Serverless architecture along with Docker containers Gain knowledge about the recent market trends and practices and how they can be achieved with .NET Core and Microsoft tools and technologies In Detail If you want to design and develop enterprise applications using .NET Core as the development framework and learn about industry-wide best practices and guidelines, then this book is for you. The book starts with a brief introduction to enterprise architecture, which will help you to understand what enterprise architecture is and what the key components are. It will then teach you about the types of patterns and the principles of software development, and explain the various aspects of distributed computing to keep your applications effective and scalable. These chapters act as a catalyst to start the practical implementation, and design and develop applications using different architectural approaches, such as layered architecture, service oriented architecture, microservices and cloud-specific solutions. Gradually, you will learn about the different approaches and models of the Security framework and explore various authentication models and authorization techniques, such as social media-based authentication and safe storage using app secrets. By the end of the book, you will get to know the concepts and usage of the emerging fields, such as DevOps, BigData, architectural practices, and Artificial Intelligence. Style and approach Filled with examples and use cases, this guide takes a no-nonsense approach to show you the best tools and techniques required to become a successful software architect.

Data is at the center of many challenges in system design today. Difficult issues need to be figured out, such as scalability, consistency, reliability, efficiency, and maintainability. In addition, we have an overwhelming variety of tools, including relational databases, NoSQL datastores, stream or batch processors, and message brokers. What are the right choices for your application? How do you make sense of all these buzzwords?, In this practical and comprehensive guide, author Martin Kleppmann helps you navigate this diverse landscape by examining the pros and cons of various technologies for processing and storing data. Software keeps changing, but the fundamental principles remain the same. With this book, software engineers and architects will learn how to apply those ideas in practice, and how to make full use of data in modern applications., Peer under the hood of the systems you already use, and learn how to use and operate them more effectively, Make informed decisions by identifying the strengths and weaknesses of different tools, Navigate the trade-offs around consistency, scalability, fault tolerance, and complexity, Understand the distributed systems research upon which modern databases are built, Peek behind the scenes of major online services, and learn from their architectures

全网独家发布，最新wpf书籍，pdf高清文字版。 Key Features Learn how to use the MVVM software architectural pattern and see the benefits of using it with Windows Presentation Fountain (WPF) Learn which controls to use in particular situations and the various ways to modify them when required Obtain a deep understanding of data validation and understand various methods that suit different situations Book Description Windows Presentation Foundation is rich in possibilities when it comes to delivering an excellent user experience. This book will show you how to build professional-grade applications that look great and work smoothly. We start by providing you with a foundation of knowledge to improve your workflow - this includes teaching you how to build the base layer of the application, which will support all that comes after it. We'll also cover the useful details of data binding. Next, we cover the user interface and show you how to get the most out of the built-in and custom WPF controls. The final section of the book demonstrates ways to polish your applications, from adding practical animations and data validation to improving application performance. The book ends with a tutorial on how to deploy your applications and outlines potential ways to apply your new-found knowledge so you can put it to use right away. The book also covers 2D and 3D graphics, UI automation, and performance tuning. What you will learn Use MVVM to improve workflow Create visually stunning user interfaces Perform data binds proficiently Implement advanced data validation Locate and resolve errors quickly Master practical animations Improve your applications' performance Table of Contents Chapter 1. A Smarter Way of Working with WPF Chapter 2. Debugging WPF Applications Chapter 3. Writing Custom Application Frameworks Chapter 4. Becoming Proficient with Data Binding Chapter 5. Using the Right Controls for the Job Chapter 6. Mastering Practical Animations Chapter 7. Creating Visually Appealing User Interfac

The definitive what, how, and why of C#. C# in Depth, Third Edition updates the best-selling second edition to cover the new features of C# 5, including the challenges of writing maintainable asynchronous code. It preserves the uniquely insightful look into the tricky areas and dusty corners of C# that only expert Jon Skeet can provide.

WPF是.NET最新的界面开发库，开发界面非常灵活！但是学习WPF难度也非常大。 应朋友之邀，编写了一个小程序。程序虽小，五脏俱全，WPF开发的灵活性可窥见一斑。

oncurrency in C# Cookbook 介绍了dataflow, Reactive Extension 编写多线程，并发，高扩展性程序必备！

是第4版 正式版 不是prepress版。 本书是全球享有盛誉的技术作家Jeffrey Richter的经典书籍CLR via C#最新版第四版。 本书针对clr、C#5.0和.net framework 4.5进行深入、全面的探讨，并结合实例介绍了如何利用它们进行设计、开发和调试。 本书深入、全面探讨.NET Framework、CRL和多核编程，广泛讨论FrameworkClassLibrary（FCL）核心类型，对泛型和线程处理等深奥 难懂的开发概念提供权威、实用的指导。

C++ GUI Programming with Qt 4, Second Edition 英文 无水印，带有目录。完美版！（网上有pdf版的 效果很差） 特意从chm转换为pdf。方便阅读！

非常经典的ＱＴ书籍，高清文字版，很难得！ C++ GUI Programming with Qt4, 2nd Edition By Jasmin Blanchette, Mark Summerfield Published Feb 4, 2008 by Prentice Hall.

【HTML5】\HTML5 Cookbook.（高清本文）pdf With scores of practical recipes you can use in your projects right away, this cookbook helps you gain hands-on experience with HTML5’s versatile collection of element s. You get clear solutions for handling issues with everything from markup semantics, web forms, and audio and video elements to related technologies such as geolocation and rich JavaScript APIs. Each informative recipe includes sample code and a detailed discussion on why and how the solution works. Perfect for intermediate to advanced web and mobile web developers, this handy book lets you choose the HTML5 features that work for you—and helps you experiment with the rest. Test browsers for HTML5 support, and use techniques for applying unsupported features Discover how HTML5 makes web form implementation much simpler Overcome challenges for implementing native audio and video elements Learn techniques for using HTML5 with ARIA accessibility guidelines Explore examples that cover using geolocation data in your applications Draw images, use transparencies, add gradients and patterns, and more with Canvas Bring HTML5 features to life with a variety of advanced JavaScript APIs

“As an in-depth guide to Ubuntu, this book does an exceptional job of covering everything from using the Unity desktop to exploring key server configurations.” –Elizabeth K. Joseph, Systems Administrator & Ubuntu Community Member

原本英文著作！非常经典！

采用c#开发的winform程序，实现了简单的图文编辑功能，后续可以扩展。主要功能如下： 1、图片旋转统一中心点旋转（包括按度数旋转），不用设置基点或是对角点。 2、抠图功能不要，增加图片剪裁功能（用于裁切不要空白等），支持矩形、圆形 裁切 3、图片缩小放大：选择边，就是按边的拖拉放大或缩小，对边为基准；选择点（四角点），就是等比放大或缩小，对角点为基准 4、增加文字图层：可以设置字体、字号、颜色，也支持拖动功能（可以在图片上或下，或是其它区域任意位置），支持多行文字。 5、增加常规图形层：矩形、圆形，所有图形可设置边框颜色及粗细，图形可设填充色或是透明 6、增加线及箭头线图层，可设置线颜色及粗细，可拖动及旋转 7、选中每个图层的右键菜单功能：增加图层操作功能（上移、下移、置顶、置底）；度数旋转；比例缩放；删除 8、所有设计对象需要系列化到XML或是其它格式数据，以便保存，重新打开再设计修改等操作 9、设计后 可保存bmp 或是 jpg

支持验章、添加注释、页面调整、文件拆分合并、ofd转pdf、ofd转图等功能。目前市面上最好的ofd阅读器！

可以查看字体文件属性、显示字体、抽取文字保存为子集。

本人研究ofd多年，采用qt开发了此款阅读器！ 阅读器具有将ofd转成图片、pdf功能。 拥有完全自助知识产权。欢迎合作交流！

完全自助开发，采用QT开发的一款简易的ofd阅读器。实现了缩放、旋转、选中、复制、单双页显示等功能。注：仅包含执行程序，没有源码。

根据ofd电子文档国家标准，开发的阅读器。实现了标准要求的大部分功能。是数科、福昕以外，第三个比较完备的阅读器。完全免费使用！ 本程序功能特点：1可以直接将ofd转换为pdf或图片。2 屏幕截图。 加入QQ群877371250，可获取最新软件版本！ 本公司专注ofd相关技术研究，可为你提供完善ofd解决方案！

可用于局域网内文件发送，发送速度极快！ 每秒可以发送几十兆字节数据！ 速度比飞鸽传书要快！可以测试检验！ 程序开发语言为 c#，运行平台: .net 4.6。网络层采用完成端口（iocp）开发。进行了多 次修改和优化，能满足大容量、高并发需求。在 socket 传输层上，增加了自己开发的私有 协议，更加方便上层调用。

本人采用完成端口（iocp）开发一套封装库，并开发了服务端和客户端模拟程序，可以测试程序性能。附件为执行程序，不包括源码。 通过测试，可以发现iocp处理性能非常强，支持的连接数也非常多。

采用WPF开发 模仿QQ截图工具。程序文件非常小，界面也小。有一个独特的功能：动态截图。截屏内容是动态的，如果桌面有视频，是可以看到视频播放内容的。截取的内容是当前时刻的。

MySQL 8 Cookbook ver 150 recipes for high-performance database querying and administration

The mission of this book is to explain to a novice the steps involved in building and deploying an end-to-end application in the domain of computer vision using OpenCV/C++. The book will start with instructions about installing the library and end with the reader having developed an application that

亚马孙五星好评书籍。学习Bootstrap 好资料！ Bootstrap is a web design framework that makes it easy for you to build responsive websites quickly and effectively. Web developers at Twitter created Bootstrap to help them build their website. They released it as an open source framework in 2011, and it has become one of the most popular frameworks on the Web.

how linux works 中英文版，本书分为三个部分。第一部分整体介绍Linux系统以及运行Linux系统所需的常用工具和命令。随后我们会 根据系统启动的大体顺序，更深入地介绍从设备管理到网络配置的各个部分。最后我们会演示系统各部 分的运行方式，并介绍

2018出版 第二版。高清原版，学习html好资料！ Gain a deep, practical knowledge of HTML and JavaScript that will provide an introduction to programming and enable you to build interactive websites. This completely updated second edition explains HTML, JavaScript and CSS in the context of working examples and contains full-color screen shots of the programs in action. You'll begin at an introductory level, learning the essentials of HTML5 and JavaScript and programming techniques. Each chapter features either a familiar game such as Hangman, Rock-Paper-Scissors, Craps, Memory, and Blackjack, or a simple type of game, such as a quiz, a maze, or animated simulations. You’ll develop solid programming skills that will help when learning other programming languages. Each chapter contains tables revealing the structure of the program with comments for each line of code. These examples demonstrate the features introduced with HTML5. You’ll see how to use canvas elements for line drawing. You can include your own audio and video clips, directly controlled by your JavaScript code. For example, the reward for correct completion of a quiz can be the playing of an audio clip and a video clip. You’ll also learn how to use localStorage to store high scores or game preferences on a user's computer for retrieval next time they play. The Essential Guide to HTML5 explores all of this and more.

zip 文件压缩 解压源码，c++版。已测试，100%可用！ // XUnzip.cpp Version 1.3

This book is about Angular 2 and Bootstrap 4, the two tremendous and most popular names in contemporary web development. Angular 2 is the successor of AngularJS, but better than the predecessor in many ways. It combines the maximum speed possible on web browsers and scalability when you work with massive data requirements. This makes Angular 2 the first candidate of choice when building new systems or upgrading from the old ones. Bootstrap 4 is the next evolutionary stage of building responsive, mobile-first web applications. It can easily and efficiently scale a website from mobile to desktop with a single codebase. If you would like to take advantage of Angular 2 power with Bootstrap 4 flexibility to build robust web-scale or enterprise web applications, you are in the right place. I had the desire to write a book about Angular 2 and Bootstrap 4 that would make no assumptions about the reader’s prior experience and knowledge. My mind was about the book with full of technical details wherever required. Now, the book you are holding in your hands is that desire realized as it is both beginner-friendly and technically deep at the same time. It covers everything a developer requires to get into serious web development using those two fantastic frameworks.

Learn how web applications can be built efficiently using ASP.NET Core 2.0 and related frameworks Key Features Get to grips with the new features and APIs introduced in ASP.NET Core 2.0 Leverage the MVC framework and Entity Framework Core 2 to build efficient applications Learn to deploy your web applications in new environments such as the cloud and Docker Book Description The ability to develop web applications that are highly efficient but also easy to maintain has become imperative to many businesses. ASP.NET Core 2.0 is an open source framework from Microsoft, which makes it easy to build cross-platform web applications that are modern and dynamic. This book will take you through all of the essential concepts in ASP.NET Core 2.0, so you can learn how to build powerful web applications.

领域驱动设计与模式实战，英文版，效果应该还不错，当然好坏自己还得看，至少不会太让人失望的，中文翻译上有哪个啥的。The main focus of the book is how a Domain Model could be constructed to be clean, yet still be persistence-friendly. It shows what the persistence solution could look like for such a Domain Model and especially how to bridge that gap between the Domain Model and the database. Put another way, my vision has been to provide a book that will put Eric Evans' Domain-Driven Design [Evans DDD] and Martin Fowler's Patterns of Enterprise Application Architecture [Fowler PoEAA] in context. DDD might be perceived as a bit abstract. Therefore, more concrete examples are helpful regarding persistence, for example. Mine may be fairly basic, but it is a platform to start from. This book not only explains how to use the patterns, but also how the patterns are used in O/R Mappers, for example.

winform编写的图片编辑程序。主要功能有：1 拖动：选中图片后，可以任意拖动图片。2 缩放：可对图片左右上下实现缩放。可以锁定显示比例缩放。3 旋转，可以选择旋转基点再旋转。如果不选择旋转基点，以对角为基点旋转。4 抠图。 操作很方便。

非常实用的小工具。图片按日期整理查看。 　手机方便了我们的生活，可以随时随地拍摄。越来越多的图片堆砌在电脑里。看到杂乱无章的图片，实在感到头痛。手动整理太复杂。基于此，我写了一个小程序，可以将图片按日期整理和查看。这样就可以按日期查看图片，回忆过去的点点滴滴！ 手机拍摄图片时，图片文件会存储拍摄时间，也就是exif信息。通过读取exif信息，可以知晓拍摄时间，程序就是根据该值排序的。