How to detect a device is plugged in a COM or a USB port?

[David_Lee]

Hope that when a device plugging in a COM or the USB port on the PC, the CVI application can catch the event. Due to the application is a windows service mode, so I think use the GetCVIWindowHandle() function to specify a particular Window to receive the message. But no idea to achieve this.

David

[恩艾仪器]

HI,

    you can try WM_DEVICECHANGE.

    http://www.codeproject.com/Articles/14500/Detecting-Hardware-Insertion-and-or-Removal

   Hope to be helped somewhat to you.

[AllenXu]

ls`s method is the key. You can also read this paper about the  WM_DEVICECHANGE event in CVI. https://decibel.ni.com/content/docs/DOC-22836

[David_Lee]

Hello,

Due to the code phase will work in the Windows service mode, so the visible panel will be not  a good way. I think that to use GetCVIWindowHandle() to specify a OS window, and use RegisterWinMsgCallback() to receive the WM_DEVICECHANGE, but no idea. Do you have any suggestion?

David