OpenProcess

openprocess.cs

// see http://www.pinvoke.net/default.aspx/kernel32/OpenProcess.html
[Flags]
public enum ProcessAccessFlags : uint
{
  All = 0x001F0FFF,
  Terminate = 0x00000001,
  CreateThread = 0x00000002,
  VirtualMemoryOperation = 0x00000008,
  VirtualMemoryRead = 0x00000010,
  VirtualMemoryWrite = 0x00000020,
  DuplicateHandle = 0x00000040,
  CreateProcess = 0x000000080,
  SetQuota = 0x00000100,
  SetInformation = 0x00000200,
  QueryInformation = 0x00000400,
  QueryLimitedInformation = 0x00001000,
  Synchronize = 0x00100000
}

[DllImport("kernel32.dll", SetLastError = true)]
public static extern IntPtr OpenProcess(ProcessAccessFlags processAccess, bool bInheritHandle, int processId);
public static IntPtr OpenProcess(Process proc, ProcessAccessFlags flags)
{
  return OpenProcess(flags, false, proc.Id);
}