How to disable/freeze excel manually when a modal popup is open

[vibhorpgupta]

Hii,

I am working on a excel addin app . This app is using pyxll addin and python to create the functions for excel. Now I have a gui package which generate a gui box in python running on the same thread of excel. Due to which the main thread of excel get blocked. Now the problem is when I am working on the gui form box which is very similar to modal box the excel stays available in background for modification which creates a problem since the excel thread is blocked. so what I need is something with which I can make excel not available/freezed/disabled when the gui form box is open.