HDEVNOTIFY RegisterDeviceNotification. My name is Jose and I am developing a tool for my company which analyses every USB device plugged to the. Registering for Device Notification. // RegisterDeviceNotification also allows a. (LPARAM)TEXT( Registered for USB device notification. A user-mode application to detect hardware add/remove with WM_DEVICECHANGE and RegisterDeviceNotification(); Author: Sam NG. \\?\USB Vid_04e8&Pid. (USB) is attacted or removed. C Signature: [DllImport( user32.dll , SetLastError = true)] static extern IntPtr RegisterDeviceNotification(IntPtr hRecipient, Check for device change (add/remove) events. // USB devices private static. (dbi, buffer, true); notificationHandle = RegisterDeviceNotification. USB RegisterDeviceNotification.NET Framework Forums on Bytes. Need help? Post your question and get tips & solutions from a community of 419,851 IT Pros. HDEVNOTIFY WINAPI RegisterDeviceNotification. Services can use the RegisterDeviceNotification function to register to receive device notifications. I currently have some code that sets up notifications of connected USB HID devices within a Windows Service (written in C++). The code is as follows: GUID hidGuid. Hi all, I am writing a C class library for a WPF application. The class library should raise an event whenever some USB device is plugged in/plugged out. Как программно определять моменты подключения и отключения устройства usb.