// Token: 0x0600021A RID: 538 RVA: 0x00015FF4 File Offset: 0x000141F4
public static int EnumerateDevices(uint DeviceIndex, string ClassName, StringBuilder DeviceName)
{
uint num = 0u;
Guid empty = Guid.Empty;
Guid[] array = new Guid[1];
DeviceInfo.SP_DEVINFO_DATA sp_DEVINFO_DATA = new DeviceInfo.SP_DEVINFO_DATA();
bool flag = DeviceInfo.SetupDiClassGuidsFromNameA(ClassName, ref array[0], num, ref num);
if (num == 0u)
{
DeviceName = new StringBuilder("");
return(-2);
}
if (!flag)
{
array = new Guid[num];
flag = DeviceInfo.SetupDiClassGuidsFromNameA(ClassName, ref array[0], num, ref num);
if (!flag || num == 0u)
{
DeviceName = new StringBuilder("");
return(-2);
}
}
IntPtr deviceInfoSet = DeviceInfo.SetupDiGetClassDevsA(ref array[0], 0u, IntPtr.Zero, 2u);
if (deviceInfoSet.ToInt32() == -1)
{
DeviceName = new StringBuilder("");
return(-3);
}
sp_DEVINFO_DATA.cbSize = 28;
sp_DEVINFO_DATA.DevInst = 0;
sp_DEVINFO_DATA.ClassGuid = Guid.Empty;
sp_DEVINFO_DATA.Reserved = 0UL;
if (!DeviceInfo.SetupDiEnumDeviceInfo(deviceInfoSet, DeviceIndex, sp_DEVINFO_DATA))
{
DeviceInfo.SetupDiDestroyDeviceInfoList(deviceInfoSet);
DeviceName = new StringBuilder("");
return(-1);
}
DeviceName.Capacity = 1000;
if (!DeviceInfo.SetupDiGetDeviceRegistryPropertyA(deviceInfoSet, sp_DEVINFO_DATA, 12u, 0u, DeviceName, 1000u, IntPtr.Zero) && !DeviceInfo.SetupDiGetDeviceRegistryPropertyA(deviceInfoSet, sp_DEVINFO_DATA, 0u, 0u, DeviceName, 1000u, IntPtr.Zero))
{
DeviceInfo.SetupDiDestroyDeviceInfoList(deviceInfoSet);
DeviceName = new StringBuilder("");
return(-4);
}
return(0);
}
private static extern bool SetupDiGetDeviceRegistryPropertyA(IntPtr DeviceInfoSet, DeviceInfo.SP_DEVINFO_DATA DeviceInfoData, uint Property, uint PropertyRegDataType, StringBuilder PropertyBuffer, uint PropertyBufferSize, IntPtr RequiredSize);
private static extern bool SetupDiEnumDeviceInfo(IntPtr DeviceInfoSet, uint MemberIndex, DeviceInfo.SP_DEVINFO_DATA DeviceInfoData);
