DEFAULT.LGF - Any environment/file name which tells the name of the calling input form?

Dear All,

I have an input form and when I run it, it is executing default.lgf file. With in default.lgf, is there any system/environment variable which tells the calling input form name? This is because I need to execute default.lgf ONLY for certain input forms. Any help on this would be appreciated.

Thanks,
Peri