从 CreateProcessWithTokenW 获取 C# 中的进程对象

Question

For the need of my application i create a process with CreateProcessWithTokenW https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-createprocesswithtokenw This help me run a process under the desktop user because my application is run under the Admin User

Before i use C# process to handle my process and get output ect...

How can i Get the process after create it with CreateProcessWithTokenW ? Their is some IntPtr in StartUPINFO that i get back but i don't find how to get the process with this.

My struct is

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
        private struct STARTUPINFO
        {
            public Int32 cb;
            public string lpReserved;
            public string lpDesktop;
            public string lpTitle;
            public Int32 dwX;
            public Int32 dwY;
            public Int32 dwXSize;
            public Int32 dwYSize;
            public Int32 dwXCountChars;
            public Int32 dwYCountChars;
            public Int32 dwFillAttribute;
            public Int32 dwFlags;
            public Int16 wShowWindow;
            public Int16 cbReserved2;
            public IntPtr lpReserved2;
            public IntPtr hStdInput;
            public IntPtr hStdOutput;
            public IntPtr hStdError;
        }

i kinda understand i got some Ptr to ouput input ect... but i don't get how to get my process back any ideA?

Answer 1

I wasnt looking in the good place. Now y use the PROCESS_INFORMATION that my methode send back Inside their is a process Id that i can get back with this simple code

var res = ProcessHelper.RunAsDesktopUser(fileName, opt);
var process = Process.GetProcessById(res.dwProcessId);

I have tested it and it work perfectly fine.