/// <summary>
/// Get Device Instance Id.
/// </summary>
/// <param name="DeviceInfoSet"></param>
/// <param name="DeviceInfoData"></param>
/// <returns></returns>
internal String GetDeviceInstanceId(IntPtr DeviceInfoSet, SetupDi.SP_DEVINFO_DATA DeviceInfoData)
{
StringBuilder strId = new StringBuilder(0);
Int32 iRequiredSize = 0;
Int32 iSize = 0;
/*Int32 iRet = */
SetupDi.SetupDiGetDeviceInstanceId(DeviceInfoSet, ref DeviceInfoData, strId, iSize, ref iRequiredSize);
strId = new StringBuilder(iRequiredSize);
iSize = iRequiredSize;
if (SetupDi.SetupDiGetDeviceInstanceId(DeviceInfoSet, ref DeviceInfoData, strId, iSize, ref iRequiredSize) == 1)
{
return(strId.ToString());
}
return(String.Empty);
}
/// <summary>
/// Retrieve the Description of a DeviceClass.
/// </summary>
/// <param name="deviceinfo"></param>
/// <param name="guid"></param>
/// <returns></returns>
internal static Boolean GetClassDescriptionFromGuid(ref DeviceInfo deviceinfo, Guid guid)
{
deviceinfo.deviceclass = String.Empty;
StringBuilder strClassDesc = new StringBuilder(0);
Int32 iRequiredSize = 0;
Int32 iSize = 0;
Int32 iRet = SetupDi.SetupDiGetClassDescription(ref guid, strClassDesc, iSize, ref iRequiredSize);
strClassDesc = new StringBuilder(iRequiredSize);
iSize = iRequiredSize;
iRet = SetupDi.SetupDiGetClassDescription(ref guid, strClassDesc, iSize, ref iRequiredSize);
if (iRet == 1)
{
deviceinfo.deviceclass = strClassDesc.ToString();
}
return(String.IsNullOrEmpty(deviceinfo.deviceclass));
}
/// <summary>
/// Retrieve and decode the device status.
/// </summary>
/// <param name="deviceinfo"></param>
/// <param name="deviceinfoset"></param>
/// <param name="deviceinfodata"></param>
/// <returns></returns>
internal static Boolean GetDeviceStatus(ref DeviceInfo deviceinfo, IntPtr deviceinfoset, ref SetupDi.SP_DEVINFO_DATA deviceinfodata)
{
StringBuilder descriptionBuf = new StringBuilder(256);
int length = descriptionBuf.Capacity;
//Assume All is ok
deviceinfo.status = 0;
deviceinfo.problem = 0;
deviceinfo.service = false;
deviceinfo.disabled = false;
deviceinfo.ghosted = false;
if (SetupDi.SetupDiGetDeviceInstanceId(deviceinfoset, ref deviceinfodata, descriptionBuf, length, ref length) != 0)
{
int aDevInst = deviceinfodata.DevInst;
int aStatus = 0;
int aProblem = 0;
if (CM_Get_DevNode_Status(ref aStatus, ref aProblem, aDevInst, (int)0) == CR_SUCCESS)
{
deviceinfo.status = aStatus;
if ((aStatus & (int)DN.DN_HAS_PROBLEM) != 0)
{
switch (aProblem)
{
case (int)CM_PROB.CM_PROB_DISABLED:
case (int)CM_PROB.CM_PROB_DISABLED_SERVICE:
deviceinfo.disabled = true;
break;
default:
break;
}
}
else if ((aStatus & ((int)DN.DN_DRIVER_LOADED | (int)DN.DN_STARTED)) != 0)
{
//return String.Format("0x{0:x8} - {1}", aStatus, "OK");
}
else if ((aStatus & ((int)DN.DN_DISABLEABLE)) != 0)
{
//
}
else
{
//
}
}
else
{
//using (RegistryKey services = Registry.LocalMachine.OpenSubKey(@"System\CurrentControlSet\Services"))
//{
// if (services.OpenSubKey(deviceinfo.name) != null)
// return String.Format("{0}", "Service");
// //Also Scan All Services for DisplayNames....
//}
if (serviceslist.Contains(deviceinfo.name.ToLower()))
{
deviceinfo.service = true;
}
else
{
deviceinfo.ghosted = true;
}
}
return(true);
}
return(false);
}
