Get handle of current process

Okapi · Post by **Okapi** » Fri Jul 22, 2011 4:16 pm

Hi all,

Trying to get the handle of the current process with OpenProcess function with no success. Maybe the problem is in the DesiredAccess value (PROCESS_ALL_ACCESS) ! Can someone help ? thanks.

Code: Select all

LibLoad>kernel32.dll,hLib
LibFunc>kernel32.dll,GetCurrentProcessId,intPId
LibFunc>kernel32.dll,OpenProcess,hProc,PROCESS_ALL_ACCESS,TRUE,%intPId%
MDL>hProc
LibFunc>kernel32.dll,CloseHandle,rslt,%hProc%
LibFree>hLib

JRL · Post by **JRL** » Fri Jul 22, 2011 9:48 pm

I don't understand what it is you're trying to do. GetCurrentProcessId "Retrieves the process identifier of the calling process." which is the process id of YOUR process. Then you follow up with OpenProcess using the id of your process. Since your process is already open. I'm obviously missing something, what is it?

Okapi · Post by **Okapi** » Fri Jul 22, 2011 9:57 pm

OpenProcess returns the handle of the specified process

JRL · Post by **JRL** » Sat Jul 23, 2011 2:01 am

Got it... I think...

Using 1 for True and 16 for PROCESS_VM_READ rather than PROCESS_ALL_ACCESS.

Try this. It seems to work for me.

Code: Select all

LibLoad>kernel32.dll,hLib
LibFunc>kernel32.dll,GetCurrentProcessId,intPId
LibFunc>kernel32.dll,OpenProcess,hProc,16,1,intPId
MDL>hProc
LibFunc>kernel32.dll,CloseHandle,rslt,%hProc%
LibFree>hLib

What can you do with a process handle once you have it?

Edit- Maybe this isn't it. Running this multiple times in the editor produces a different result each time. My understanding of handles is that a handle is fixed until the process stops. Yet my understanding of the process is that a non-zero result is a handle. I don't know what is correct.

Okapi · Post by **Okapi** » Sat Jul 23, 2011 5:00 pm

The returned value is indeed the handle of the current process, thanks. I use the handle to check if the process is running inside a job or not with IsProcessInJob function.