How do I check if my program is running under admin privileges via C++?

Question

How do I check if my C++ program is running with admin privileges?

I did it in this manner for batch

set fold=%random%

mkdir "C:\Windows\%fold%"

if errorlevel 1 (

goto Tag1

)

goto Tag2

But I cannot use the same thing for C++ because I do not know how to transfer value of %random% that is variable 1 to variable 2 that is %fold% and also, I do not know if there is error level for C++.

Can anyone help me in this case or is there any way to check if my program is running with admin privileges?

Have a look at this. C# I know but the principles are the same:http://stackoverflow.com/questions/509292/how-can-i-tell-if-my-process-is-running-as-administrator — Bathsheba, Oct 07 '14 at 07:16
Your batch file is awful. Spraying folders into the system directories. Yuch! Don't do it that way!! — David Heffernan, Oct 07 '14 at 08:53
We also have http://stackoverflow.com/questions/8046097/how-to-check-if-a-process-has-the-administrative-rights and http://stackoverflow.com/questions/3546643/how-do-i-check-if-my-program-is-ran-by-user-as-administrator-vista-win7-c and http://stackoverflow.com/questions/981171/check-if-process-user-is-an-administrator-c and hundreds more. Please don't treat Stack Overflow as a replacement for web search. Always search first. — David Heffernan, Oct 07 '14 at 08:55
It's just for testing. If not elevated, no folder will be created. If elevated, later the created folder will be deleted. @DavidHeffernan — Dragon121, Oct 07 '14 at 09:51

score 5 · Accepted Answer · edited May 23 '17 at 12:29

5

You can use the OpenProcessToken / GetTokenInformation pair: https://stackoverflow.com/a/8196291/3235496

An alternative is the AccessCheck function.

Last the IsUserAnAdmin function: it's simple but deprecated (available from Windows XP/Windows Server 2003).

Anyway why are you checking? Trying could be a good strategy: if it works, you have sufficient rights (possibly a subset of Admin rights).

PS

Just out of curiosity... the C++ translation of your batch file should be based on the CreateDirectory function. If it fails check the extended error information via GetLastError (return code ERROR_ACCESS_DENIED). But, as David Heffernan says, spraying folders into the system directories isn't a great idea.

edited May 23 '17 at 12:29

Community

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answered Oct 07 '14 at 08:01

manlio

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It's just for testing. If not elevated, no folder will be created. If elevated, later the created folder will be deleted. – Dragon121 Oct 07 '14 at 09:48
Why are you saying that **IsUserAnAdmin()** is deprecated ? I didn't find a confirmation of such deprecation. The doc describe it as a "wrapper for CheckTokenMembership." – Bemipefe Aug 02 '19 at 10:25
@Bemipefe It's in the Deprecated Shell APIs section of https://learn.microsoft.com/en-us/windows/win32/shell/deprecated-api. It could be superseded by newer APIs (*`IsUserAnAdmin` is available for use in the operating systems specified in the Requirements section. **It may be altered or unavailable in subsequent versions**.*). – manlio Aug 02 '19 at 12:38

score -1 · Answer 2 · answered Oct 07 '14 at 07:57

-1

You find the answer in the MSDN:

https://support.microsoft.com/kb/118626

Also your application should have a manifest.

answered Oct 07 '14 at 07:57

xMRi

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I get this error: error: main must return int void main(int argc, char **argv) – Dragon121 Oct 07 '14 at 08:02
@Pawan Replace `void` with `int` on that line. `main` *must* return `int` :) – Magnus Hoff Oct 07 '14 at 08:22
3

To prevent link rot, please include the essence of the solution inside the answer here :) – Magnus Hoff Oct 07 '14 at 08:23
@MagnusHoff Now I get the error: undefined reference to IsCurrentUserLocalAdministrator() – Dragon121 Oct 07 '14 at 08:29
@Pawan Please research your new problem and see if you can find a solution. If not, you are free to ask a new question with the "Ask Question"-button :) – Magnus Hoff Oct 07 '14 at 08:30
As Magnus Hoff wrote: This are standard queries to C/C++ and Windows API programming. Please read some tutorials. – xMRi Oct 07 '14 at 08:39
I did research and got nothing! – Dragon121 Oct 07 '14 at 09:37
You could have spent the time to post the solution rather than the link to the solution. – RushPL Jul 11 '17 at 17:45

How do I check if my program is running under admin privileges via C++?

2 Answers2

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