Solved

Notification to a running application of a USB device connecting to the computer.

Posted on 2013-01-25
3
347 Views
Last Modified: 2013-01-28
hi - i'm using VS2010 and .net 4 running on Windows 7. I want my app to respond to a specific usb device being connected to the computer - while the app is running. is there an event that i can trap? can you provide some code that would show how the call back would work?
the usb device is of my making, so i have some control over the device protocol. however it uses the ftdi chip to control the enumeration, so i don't have control over the device driver. it instantiates as a USB serial device. The actual device is an Arduino Nano.
thanks,
0
Comment
Question by:jdcoburn
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 7

Expert Comment

by:tipsybroom
ID: 38820796
0
 

Author Comment

by:jdcoburn
ID: 38820949
thanks, but this shows up as a serial device (COM port). i suppose i could scan for a new COM port using the serial.ports but i would rather try and get a notification.
0
 
LVL 4

Accepted Solution

by:
jiangsheng earned 500 total points
ID: 38822480
There's a device change notification via the Win32_DeviceChangeEvent WMI provider. However, this provider doesn't really tell if a new device is connected via USB right away.  You can enumerate USB devices via Win32_USBControllerDevice and see what's changed.

It may be easier to just pinvoke RegisterDeviceNotification and pass GUID_DEVINTERFACE_USB_DEVICE as the filter's class type.
0

Featured Post

Back Up Your Microsoft Windows Server®

Back up all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When you try to share a printer , you may receive one of the following error messages. Error message when you use the Add Printer Wizard to share a printer: Windows could not share your printer. Operation could not be completed (Error 0x000006…
A quick guide on how to use Group Policy to create a custom power plan and set it active on Windows 7.
The viewer will learn how to successfully create a multiboot device using the SARDU utility on Windows 7. Start the SARDU utility: Change the image directory to wherever you store your ISOs, this will prevent you from having 2 copies of an ISO wit…
The Task Scheduler is a powerful tool that is built into Windows. It allows you to schedule tasks (actions) on a recurring basis, such as hourly, daily, weekly, monthly, at log on, at startup, on idle, etc. This video Micro Tutorial is a brief intro…

735 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question