Tetris

EVC开发忠告 可以让大家借鉴的对方三分(EVC development advice so that we can learn from each other one-third)

大名鼎鼎的界面库Toolkit.Pro.v15.3.1完整源代码(SHELL PROGRAMMING Toolkit.Pro.v15.3.1)

用C++中的MFC编程实现正轴等角割圆柱投影，实现以下要求： 取克拉索夫斯基椭球 (1)制图区域： Bs=0°, BN=25° LE=105°, LE=125° (2)经纬线间隔： ΔB=ΔL=5° (3)制图比例尺： 1:M0=1:1000 000 (4)标准纬线： Bk=±15° 计算经纬网格点的 x, y,m,n, p (With C++ Of MFC programming is cutting Conformal cylindrical projection axis to achieve the following requirements: check克拉索Malinowski ellipsoid (1) mapping the region: Bs = 0 °, BN = 25 ° LE = 105 °, LE = 125 ° (2) latitude and longitude line spacing: ΔB = ΔL = 5 ° (3) Drawing scale: 1: M0 = 1:1000 000 (4) the standard parallels: Bk = ± 15 ° latitude and longitude grid computing point x , y, m, n, p)

ptz 云台控制软件, 内带C++ 源码(ptz PTZ control software, which brought C++ source)

说明：  mongoose v6.15，多线程http——server，线程数可设。从GitHub下载C语言原代码，在vc6里面编译成c++工程(multi-threads http_server, based on source code from Github. The project is conducted in VC6, converted from c language. The threads num can be edited in code.)

说明：  GPS原理与应用： 本书系统、深入地阐述了GPS的各项相关内容，包括其发展背景、基本原理、系统构成、信号特性、接收机信号处理、信道恶化及抗干扰、性能评估、差分技术、与其他传感器的组合和网络辅助、GALILEO及其他卫星导航系统，以及GNSS市场和应用。本书的内容丰富，实用性强，理论分析清楚，工程示例翔实，充分反映了近年来的新技术和新成果，是卫星导航领域的一本优秀参考书。 本书可以作为卫星导航定位及相关领域的系统设计师、算法设计师、软硬件工程师和科技工作者的业务工具书，也可作为高校相关专业教师和研究生教学的教材和参考书。(err)

这是一部很好的C++学习教材，有助于大家提高C++的学习(This is a very good C++ learning materials.Help us to improve the learning C++)

Visual C++语言提供了虚屏功能，利用它及Windows GDI图形函数，可编制出功能强大的图形处理程序。虚拟屏幕的原理是，首先定义一个虚拟设备描述表及一块位图象数据区，将本应在实际窗口的绘画处理转移到此图象数据区（这块图象数据区功能相当于视频存储区），绘画操作完成后可通过图象传递，将结果弹出到可视窗口。许多Windows环境的图形处理或CAD系统都采用了这种技术。如GIS软件Mapinfo、AutoCAD for Windows等，它们的图形操作功能如开窗、漫游等的基础都是建立在虚屏基础上，并且将操作界面都作成工具窗（一种特殊的窗口，客户区内规则地排列着图象按钮响应操作代码）的形式，直观、灵活且便于用户选择操作。VC++的CDC类、CBitmap类封装了对虚屏的操作，利用类的继承性，也可很容易的实现工具窗。(Visual C++ provides a virtual screen function, use it, and Windows GDI graphics functions, can be prepared in a powerful graphics program. The principle of the virtual screen, first define a virtual device description table and a bit image data area, the present should be transferred in the actual window painting processing of this image data area (this image data area function equivalent to the video memory area ), after the completion of the painting operation can be passed through the image, the results of the pop-up to the visible window. Graphics or CAD system for many Windows environment using this technology. GIS software Mapinfo, AutoCAD for Windows and other graphics operations functions such as windows, roaming the foundation are built on the basis of the virtual screen, and the operator interface made ​ ​ tool window (a special window, the client area regularly arranged in the form of image button in response to the operation code), intuitive, flexible and user-fri)

GPS定位代码，仅供大家学习与参考，欢迎批评指正。(The locating code of GPS,just for study.)

说明：  DirectDraw编程方法与技巧.pdf(DirectDraw programming methods and techniques. Pdf)