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VS2010遍历pc上usb设备。 包含控制器 hub port 设配id 等信息
usb其实和串口是一样的,其端口也是固定的(如果你不接扩展hub)。有时一台电脑接多个相同的usb设备,如果接连个摄像头(前后各一个),我们如果区分打开的是哪一个呢?1、先把usb设备先遍历出来,得到usb信息(设备串等)。2、通过打开usb设备时返回信息(这个很重要 //usb#vid_1d27&pid_0600#5&10ef021e&0&5#{c3b5f022-5a42-1980-1909-ea72095601b1})。3、遍历注册表得到usb设备信息(#define USB_REGPATH "SYSTEMCurrentControlSetEnumUSB" )。4、通过第1条的设备串、第2条打开设备返回信息、注册表。就可以确定usb设备(控制器->hub->端口)
- 2022-10-31 17:35:03下载
- 积分:1
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smtp procedures, the main component of language from c
smtp实现程序,主要由c语言组成-smtp procedures, the main component of language from c
- 2022-02-03 23:55:35下载
- 积分:1
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一个给予wince的画图程序 是个狠不错的程序 大家学算法和图形学都可以用...
一个给予wince的画图程序 是个狠不错的程序 大家学算法和图形学都可以用-Give the drawing a wince program is a hard process we learn a good algorithm and graphics can be
- 2022-02-02 17:22:03下载
- 积分:1
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by right
按鼠标右键弹出带有图标的图形菜单-by right-clicking the icon with a pop-up menu graphics
- 2022-03-05 00:33:32下载
- 积分:1
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visual basic程序实现反平行四边形机构设计
visual basic程序实现反平行四边形机构设计-visual basic program to achieve the anti-parallelogram mechanism design
- 2022-10-04 15:55:04下载
- 积分:1
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运筹学的程序
本程序实现运筹学--非线形规划中的单纯形法,求fmin(X)=4*(X1-5)*(X1-5)+(X2-6)(X2-6)的具有最小值时的最优解,如需改变所求函数,在子函数f中修改即可-the program tacticians-- non-linear planning for the simplex method, seeking fmin (X) = 4* (X1- 5)* (X1- 5) (X2-6) (X2-6) with the minimum of the optimal solution, and if necessary change change the demand function, f Functions can be modified
- 2022-02-09 17:36:21下载
- 积分:1
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ie恢复器DELPHI源码
ie恢复器DELPHI源码-ie restorer DELPHI FOSS
- 2023-08-07 02:35:03下载
- 积分:1
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ProcessPool,处理进程池,具有一定的参考价值。
ProcessPool,处理进程池,具有一定的参考价值。-ProcessPool, deal with the process of pool, have a certain reference value.
- 2023-04-07 18:00:03下载
- 积分:1
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对C++初学者很有用的
对C++初学者很有用的-C beginners very useful.
- 2022-08-12 15:27:08下载
- 积分:1
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vc 100 cases of the exciting programming source code, which source code, with vc...
vc编程一百例的精彩源码,内有源代码,用vc编写,可以作为学习编程的参考-vc 100 cases of the exciting programming source code, which source code, with vc the preparation can be used as a reference to learn programming
- 2022-03-29 23:55:24下载
- 积分:1