Is library running on Citrix or Terminal Server? – Testing on existence/value of environment variable SESSIONNAME – Solution

Hi Bruno,

I had this code lingering, not used recently:

Register DLL (‘user32′,’GetSystemMetrics’,’AJ’)      ;; jf – 21 aug 03
— detect if running under Terminal Server
Call DLL (‘user32′,’GetSystemMetrics’,4096) Returns
lbUsingTerminalServices     ;; 4096 = SM_REMOTESESSION

May help you… or point you in a different direction…

regards
Phil Potter
Based in Chester in the UK.

On 26/01/2018 15:40, bub wrote:
> Hey all,
>
> I would love to find out if my library is running on Citrix or
> Terminal Server.
>
> Apparently, the environment variable SESSIONNAME is only defined on
> Citrix or Terminal Server so that would be a way to find it out, even
> more specific
>
> Citrix client => SESSIONNAME starts with ICA
> Rdp client => SESSIONNAME starts with rdp
> Console session => SESSIONNAME starts with console
>
> Is there any DLL that can provide the value of an envirnoment variable
> like SESSIONNAME?
>
> Ok, just did some more effort in scrolling through historic posts and
> found similar construction to get username (which i changed now to
> sessionname)
>
> Register DLL (‘kernel32′,’GetEnvironmentVariableA’,’ICCM’)
> Call DLL
> (‘kernel32′,’GetEnvironmentVariableA’,’SESSIONNAME’,%%SESSIONNAME,255)
>
> So solution found, happy to share, might me be interesting for some
>
> Bruno.
>
>
>
>
>
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