Check if an app is active, use AVar()

[salvomic]

[quote='salvomic' pid='39335' dateline='1437237850']
...and use this line

Code:


    temp2:= EVAL(Astro_Lab_4.PlanetCoordinates({EVAL(temp),lista}));

is insecure!
if the program doesn't exist the program won't compile and gives a syntax error
i.e.

Code:


    temp2:= EVAL(Astro_Lab_4xxxxx.PlanetCoordinates({EVAL(temp),lista}));

as Astro_Lab_4xxxxx doesn't exist...