const uint ATTACH_PARENT_PROCESS = 0x0ffffffff;  // default value if not specifing a process ID

• dwProcessId should be uint.Max (ATTACH_PARENT_PROCESS) or the process' ID that you want to attach to (untested in .NET for me anyway)

    /// <param name="dwProcessId">[in] Identifier of the process, usually will be ATTACH_PARENT_PROCESS</param>

    const uint ATTACH_PARENT_PROCESS = 0x0ffffffff;  

        if (!AttachConsole(ATTACH_PARENT_PROCESS) && Marshal.GetLastWin32Error() == ERROR_ACCESS_DENIED)

    const uint ATTACH_PARENT_PROCESS = 0x0ffffffff;  // default value if not specifing a process ID

• dwProcessId should be uint.Max (ATTACH_PARENT_PROCESS) or the process' ID that you want to attach to (untested in .NET for me anyway)

    /// <param name="dwProcessId">[in] Identifier of the process, usually will be ATTACH_PARENT_PROCESS</param>

    const uint ATTACH_PARENT_PROCESS = 0x0ffffffff;  

        if (!AttachConsole(ATTACH_PARENT_PROCESS) && Marshal.GetLastWin32Error() == ERROR_ACCESS_DENIED)