Detect citrix “application mode”?

Question

Forgive me for probably using the wrong term for this \"application mode\".

Our application has a problem during start in that it doesn\'t show a task bar icon until the

Answer 1

Not sure exactly how to do this in delphi, but if you can call out to the user32.dll, and call the function:

if (GetSystemMetrics(SM_REMOTESESSION) != 0)
{
   // We are in a remote session
}

This should tell you if you are running in a Citrix or Terminal Services environment. SM_REMOTESESSION is defined as:

#define SM_REMOTESESSION        0x1000

More info on the GetSystemMetrics api here: Link to msdn

Edit The following page describes how to do exactly the above in delphi. What works for Terminal Services should also work for Citrix:

Is your Delphi Application Running under Terminal Services as a Remote Session

Answer 2

This works for me:

return System.Windows.Forms.SystemInformation.TerminalServerSession;

Answer 3

A side-note for the curious: The solution proposed by "open-collar" is just a .NET wrapper for the one given by John Sibly. They should return the same result in every case. I confirmed this by disassembling the System.Windows.Forms.SystemInformation class.