asked on

exitprocess using kernel32

In my program I used to use the below function

Call ExitProcess(retVal)

here retval is long and I declared exitprocess as below

Private Declare Sub ExitProcess Lib "KERNEL32" _
(ByVal uExitCode As Long)

but now i want to return string, i made the same call
Call ExitProcess(retVal)

but my decalration is different
Private Declare Sub ExitProcess Lib "KERNEL32" (ByVal uExitCode As String)

is this correct ? can i use it in this way...because i heard we can just have uExitCOde as Long.

vinodpaka

Hi shragi,
Input parameter can be long or string,since you need to return a string you can keep like this.

Private Declare Sub ExitProcess Lib "KERNEL32" _
(ByVal uExitCode As Long)
-
-
string x=uExitCode.tostring()
end sub

ASKER CERTIFIED SOLUTION

kaufmed

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SOLUTION

Mike Tomlinson

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shragi

ASKER

Private Declare Sub ExitProcess Lib "KERNEL32" (ByVal uExitCode As String)

is this possible or not...

can the API take string if not is there any other options i have

Mike Tomlinson

No...it takes an Integer:

Private Declare Sub ExitProcess Lib "KERNEL32" (ByVal uExitCode As Integer)

*Not necessary though as I pointed out previously.

What are you trying to do?...

Vaughn Bigham

I think @kaufmed gave you the correct answer already. Operating system exit codes are inherently numeric by nature, for now (No, you won't be able to return a string). You can try writing the string to the standard out before exit, and any monitoring processes might be able to catch/parse that. But for now you are limited to using Integer or Long. That is not to say that you couldn't have a specific meaning reserved for each numeric value. Typically, processes return 0(zero) when successful, and !0 (not zero) otherwise.