on how to use C# multimedia applications development of small pictures of the op...

ActiveX编程，实现了一个简单的电子印章功能。(ActiveX programming, to achieve a simple function of the electronic seal.)

在很多动作大片中，开启关键之门的密码都是人脸———通过摄像头扫描脸部特征，符合则自动开启大门，反之警铃大作。依次通过人脸检测、人脸对齐、人脸识别三个模块，才能完成验证。人脸支付存在的一大问题就是识别率不高，完美光线下识别率能达到90%，特殊光影下只有60%。以淘宝为例，每天上亿的交易量，即便是99.99%也是远远不够的。

用MFC实现的一个网络抓包程序，可以分析TCP、UDP、ICMP协议数据，同时有流量统计的功能，可供大家参考(Implemented by a network packet capture MFC program that can analyze TCP, UDP, ICMP protocol data, traffic statistics function simultaneously, for your reference)

Control of High Voltage 3-Phase BLDC Motor

检测NAT类型的客户端，程序中指定了服务器IP地址，用户可以自行修改(Detect NAT type of the client, the program specifies the server IP address, the user can modify)

运行于MT4的一款外汇双货币对冲的ea，市面上是找不到的，仅供学习，谨慎实盘。内含英文试用说明书。(A pair of foreign currency hedging operation on MT4 EA, the market is not to be found, only to learn, cautious firm. Contains English test specification.)

调用协议栈里的串口函数接收电脑发送过来的数据；将接收的串口数据发送给其它 Zigbee  设备。一个 Zigbee 模块(路由/终端) 通过串口接收电脑发过来的数据，然后将数据发送出去，另一个 Zigbee 模块(协调器)将接收到的无线数据，通过串口发送给电脑显示。

一个很有用的TreeCtrl，有复选柜，可以自定义图标，展开节点时，可以更换图标。支持右键菜单增加删除节点(A very useful TreeCtrl, there are check counters, you can customize the icon, expand the node, you can replace the icon. Support right click menu to add delete node )

说明：  通过定时器控制pwm输出，进而控制电机舵机的转动。(The output of PWM is controlled by a timer, and then the rotation of the motor steering gear is controlled.)

各个坐标系之间的坐标变化：地心大地坐标到地心空间大地直角系，地心系和测站系，测站系和测站系等之间的变化，旋转，平移。(Coordinate changes between the various coordinate systems: geocentric geodetic coordinate system to the geocentric Cartesian space earth, geocentric system and station lines, change the station, such as lines and lines between stations, rotation, translation)