MyPictureDrawing2

本程序基于VC6.0通过duilib库对mfc窗口进行设计，可设置背景，按钮等基本操作，对初学者很有帮助。因为在VC6.0中使用需要gdiplus.h头文件和相关库文件，因此将该压缩文件一并上传。(This procedure by duilib bank on mfc window design, you can set basic operations background, buttons, etc., useful for beginners.Because the need to use gdiplus.h header files and related libraries in VC6.0, so the compressed file be uploaded.)

在vc++环境下使用opengl语言进行碰撞检测(In vc++ environment to use opengl collision detection language)

认识时钟系统和定时器的作用和如何去运用。(Understand the function of clock system and timer and how to use it.)

mfc数据库用mfc方式实现了数据库功能(mfc database)

坐标转换，可将坐标从大地坐标转换为地方坐标并可以反转(Coordinate conversion, coordinate conversion from geodetic coordinates to local coordinates and can be reversed)

采集声音信号并进行错位乘加求时延，进行处理来估计角度(Collecting acoustic signal and delay seeking dislocation multiply)

快递发送单查询通信，　利用了socket(Courier to send single query communication using a socket)

说明：  visual C++的MFC程序，建立对VC的基础性了解(this describes in detail the characteristics of C++ language, basic grammar, and explain with examples)

采用VB6.0编程的MD5加密算法。MD5就是采用单向加密的加密算法，对于MD5而言，有两个特性是很重要的，第一是任意两段明文数据，加密以后的密文不能是相同的；第二是任意一段明文数据，经过加密以后，其结果必须永远是不变的。前者的意思是不可能有任意两段明文加密以后得到相同的密文，后者的意思是如果我们加密特定的数据，得到的密文一定是相同的。(Using VB6.0 programming of MD5 encryption algorithm. MD5 is the use of one-way encryption algorithm, for MD5, there are two characteristics is very important, the first is any two plaintext data encrypted ciphertext, later not to be the same second is an arbitrary piece of plaintext encrypted data, then, the results must always be the same. The meaning of the former is unlikely to have any two plaintext after getting the same ciphertext, which means if we encrypt specific data, the encryption must be the same. )

说明：  今天给大家带来使用文本文件作为数据源的 ComboBox中国城市三级联动的代码。 1.地区库更新非常方便，不会影响到其他功能（区划代码是唯一的）。 2.文本文件读取来速度很快。(n the past, I used VB6 to write an example of three-level linkage of ComboBox in Chinese cities, using MDB database. A few years ago, the code, the regional database is not the latest. Today we bring you the code of ComboBox, which uses text files as data sources, for three-level linkage of Chinese cities. 1. The regionalization library updates are very convenient and will not affect other functions (regionalization code is the only one). 2. Text files are read very fast.)