Equivalent to Application.Statusbar in C++?

[Matt Lind]

In scripting, I can send a message to the statusbar by assigning a value to it 
like this:

                Application.Statusbar = "program completed";

Looking through the C++ reference in the SDK, I cannot find the equivalent.  
The best I could think of was called a script dynamically:

                XSI::Application().ExecuteScriptCode( L"Application.Statusbar = 
\"" + PRG + L" completed\"", L"JScript" );

Anybody know how to set the status bar in C++?

Thanks,

Matt