[VB.NET] Detect whether the USB device is plugged in or taken out without timer

.NET programming The following VB.NET code will help you to check whether a USB device is plugged in or taken out. No timer is used here. You can integrate this tip to your program just by copy and paste. Private WM_DEVICECHANGE As Integer = &H219 Public Enum WM_DEVICECHANGE_WPPARAMS As Integer DBT_CONFIGCHANGECANCELED = &H19 DBT_CONFIGCHANGED = &H18 DBT_CUSTOMEVENT = &H8006 DBT_DEVICEARRIVAL = &H8000 DBT_DEVICEQUERYREMOVE = &H8001 DBT_DEVICEQUERYREMOVEFAILED = &H8002 DBT_DEVICEREMOVECOMPLETE = &H8004 DBT_DEVICEREMOVEPENDING = &H8003 DBT_DEVICETYPESPECIFIC [...]