CreateProcessWithTokenW has invalid signature about vanara HOT 4 CLOSED

That would be true if PROCESS_INFORMATION was defined as struct. It is a class and is therefore already passed by reference. Thus that application of the OutAttribute to inform the marshaler that the class is being updated on the way back. Are you getting an error? In my unit testing, it worked.

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I found the problem. It is not in the signature of the function, it is in the implementation of the class PROCESS_INFORMATION. It will be corrected shortly.

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The PROCESS_INFORMATION doesn't have a public constructor.

I have also reviewed it's usage and in Kernel32.CreateProcess (and other places) it is used with out specifier and internally instantiated using a struct recieved from the WinAPI.

PROCESS_INFORMATION is used with [Out] attribute in other places like, CreateProcessAsUser, CreateProcessWithLogonW, but none of them have unit tests.

Note: I was writing this message when your last answer popped out.

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Thanks for pointing all this out. Turns out it was bad naming and some inconsistency between assemblies. It has been corrected now. I decided to make it a breaking change due to the immensity of my mistake. I need users to know it is broken so they fix it. This code now works for the function:

using (var pTok = SafeHTOKEN.FromProcess(GetCurrentProcess()))
using (var hTok = pTok.DuplicateImpersonate())
{
   var b = CreateProcessWithTokenW(hTok, 0, "notepad.exe", null, 0, default, default,
      STARTUPINFO.Default, out var pi);
   if (b) WaitForSingleObject(pi.hProcess, INFINITE);
}

I'll post all these changes to GitHub and then will include them in the next release early next week.

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