internal static ServiceNativeMethods.SERVICE_STARTTYPE GetServiceStartType(string serviceName, string server = null)
{
ServiceNativeMethods.QUERY_SERVICE_CONFIG config = new ServiceNativeMethods.QUERY_SERVICE_CONFIG();
//open service control manager
using (SafeServiceHandle scManager = ServiceNativeMethods.OpenSCManager(server, null, ServiceNativeMethods.SC_MANAGER_ACCESS.GENERIC_READ))
{
int errorCode = Marshal.GetLastWin32Error();
if (scManager.IsInvalid)
{
throw new System.ComponentModel.Win32Exception(errorCode);
}
// open service
using (SafeServiceHandle service = ServiceNativeMethods.OpenService(scManager, serviceName, ServiceNativeMethods.SERVICE_ACCESS.GENERIC_READ))
{
errorCode = Marshal.GetLastWin32Error();
if (service.IsInvalid)
{
throw new System.ComponentModel.Win32Exception(errorCode);
}
//query size of buffer needed for configuration information
uint bufSize = 0;
uint bytesNeeded;
using (SafeGlobalMemoryHandle invalidHandle = SafeGlobalMemoryHandle.InvalidHandle)
{
if (!ServiceNativeMethods.QueryServiceConfig(service, invalidHandle, bufSize, out bytesNeeded))
{
errorCode = Marshal.GetLastWin32Error();
if (errorCode != ServiceNativeMethods.ERROR_INSUFFICIENT_BUFFER)
{
throw new System.ComponentModel.Win32Exception(errorCode);
}
}
}
//allocate buffer and query configurations
using (SafeGlobalMemoryHandle buffer = new SafeGlobalMemoryHandle((int)bytesNeeded))
{
bufSize = bytesNeeded;
if (!ServiceNativeMethods.QueryServiceConfig(service, buffer, bufSize, out bytesNeeded))
{
errorCode = Marshal.GetLastWin32Error();
throw new System.ComponentModel.Win32Exception(errorCode);
}
config = (ServiceNativeMethods.QUERY_SERVICE_CONFIG)buffer.ToStructure(typeof(ServiceNativeMethods.QUERY_SERVICE_CONFIG));
}
}
}
return(config.startType);
}
internal static extern bool QueryServiceConfig(SafeServiceHandle service, SafeGlobalMemoryHandle pServiceConfig, uint bufSize, out uint bytesNeeded);