private void EnumerateHidDevices() { ushort vendorId = ushort.Parse(tb_vid.Text.Replace("0x", ""), System.Globalization.NumberStyles.AllowHexSpecifier); ushort productId = ushort.Parse(tb_pid.Text.Replace("0x", ""), System.Globalization.NumberStyles.AllowHexSpecifier); ushort usagePage = ushort.Parse(tb_usagepageID.Text.Replace("0x", ""), System.Globalization.NumberStyles.AllowHexSpecifier); ushort usageId = ushort.Parse(tb_usageID.Text.Replace("0x", ""), System.Globalization.NumberStyles.AllowHexSpecifier); HIDEnum.EnumerateHidDevices(vendorId, productId, usagePage, usageId); }