/// <summary>
/// Obtains the executable name of the process
/// </summary>
/// <param name="processID"></param>
/// <param name="throwExException"></param>
/// <returns></returns>
public static string GetExecutableName(int processID, bool throwExException)
{
Exception error = null;
var result = new StringBuilder(65536);
var len = result.Capacity;
if ((Environment.OSVersion.Platform == PlatformID.Win32NT) && (Environment.OSVersion.Version >= new Version("6.0")))
{
var processHandle = KERNEL32.SafeNativeMethods.OpenProcess(ACCESS_PROCESS.QUERY_INFORMATION, false, processID);
if (processHandle == IntPtr.Zero)
{
//try limited
processHandle = KERNEL32.SafeNativeMethods.OpenProcess(ACCESS_PROCESS.QUERY_LIMITED_INFORMATION, false, processID);
}
if (processHandle == IntPtr.Zero)
{
error = new Win32ErrorException();
}
else if (!KERNEL32.SafeNativeMethods.QueryFullProcessImageName(processHandle, 0, result, ref len))
{
error = new Win32ErrorException();
}
KERNEL32.SafeNativeMethods.CloseHandle(processHandle);
}
else
{
var processHandle = KERNEL32.SafeNativeMethods.OpenProcess(ACCESS_PROCESS.QUERY_INFORMATION | ACCESS_PROCESS.VM_READ, false, processID);
if (processHandle == IntPtr.Zero)
{
error = new Win32ErrorException();
}
else
{
len = PSAPI.GetModuleFileNameEx(processHandle, IntPtr.Zero, result, len);
if (len == 0)
{
error = new Win32ErrorException();
}
}
KERNEL32.SafeNativeMethods.CloseHandle(processHandle);
}
if (throwExException && (error != null))
{
throw error;
}
return(result.ToString());
}
/// <summary>
/// updates the process id list and returns the number of processes in the list
/// </summary>
/// <returns></returns>
public int Update()
{
if (!PSAPI.EnumProcesses(m_ListPointer, 32768, out var len))
{
if (len > m_Size)
{
m_Size = len * 2;
Marshal.FreeHGlobal(m_ListPointer);
m_ListPointer = Marshal.AllocHGlobal(m_Size);
return(Update());
}
throw new Win32ErrorException();
}
m_Count = len / 4;
m_Items = null;
return(m_Count);
}
