internal Service(ServiceEnumInfo info, ServiceCollection parent)
{
m_prefix = info.Prefix;
m_handle = info.Handle;
m_state = info.State;
m_dll = info.DLLName;
m_parent = parent;
}
/// <summary>
/// Gets a collection of Services supported on the device
/// </summary>
/// <returns></returns>
public static ServiceCollection GetServices()
{
ServiceCollection collection = new ServiceCollection();
if (Environment.OSVersion.Version.Major > 5)
{
// jsm - in CE 6, GetServiceHandle is now deprecated
// 1. Open registry to inspect services
string DLLName = String.Empty;
using (Microsoft.Win32.RegistryKey root = Registry.LocalMachine.OpenSubKey("Services"))
{
string[] subkeyNames = root.GetSubKeyNames();
foreach (string name in subkeyNames)
{
using (RegistryKey svcKey = root.OpenSubKey(name, true))
{
string prefixVal = (string)svcKey.GetValue("Prefix");
int? svcIndex = (int?)svcKey.GetValue("Index");
DLLName = (string)svcKey.GetValue("Dll");
if (!String.IsNullOrEmpty(prefixVal))
{
string strIndex = (svcIndex == null) ? "" : svcIndex.ToString();
string prefixFull = String.Format("{0}:", prefixVal.ToUpper().Substring(0, 3) + strIndex);
// 2. Get handles by way of CreateFile
IntPtr svcHandle = CreateFile(prefixFull, 0, 0, 0, OPEN_EXISTING, 0, 0);
int numBytesReturned = 0;
int lastError = 0;
int[] outBuffer = new int[1];
int outSize = sizeof(int) * outBuffer.Length;
if (!DeviceIoControl(svcHandle, IOCTL_SERVICE_STATUS, null, 0, outBuffer, outSize, ref numBytesReturned, IntPtr.Zero))
{
lastError = Marshal.GetLastWin32Error();
}
else
{
ServiceState svcState = (ServiceState)outBuffer[0];
collection.Add(new Service(new ServiceEnumInfo(prefixFull, DLLName, svcHandle, svcState), collection));
}
}
}
}
}
return(collection);
}
else
{
byte[] data = new byte[0];
int count;
int size = 0;
NativeMethods.EnumServices(data, out count, ref size);
data = new byte[size];
NativeMethods.EnumServices(data, out count, ref size);
for (int i = 0; i < count; i++)
{
ServiceEnumInfo info = new ServiceEnumInfo(data, i * ServiceEnumInfo.SIZE);
collection.Add(new Service(info, collection));
}
}
return(collection);
}
