Add window functions

[Ardy 0]

It would be good to add window functions such as: if window exists, is window on foreground, window position, etc. This would help for improvement of the functionality of the macros that will be created. And this would help me also for the game that I created a macro at. 

[Nefatos 1045]

Ardy Hello. Unfortunately, there are certain technical limitations. Thanks for the idea!