windows (how to know if win() succeeded?)

[h7dra]

Hello!

code:

int w1=win("Example")
act(w1)



> Error (RT) in Macro: window not found

how can i test if the window is found?
does there exist a command that would return 1 if window exists, 0 else?
( i read the help, but i dont really understand wintest command... )


Thank you