@s_bach Thank you so much.
Actually, I want to know if i click "item1" in the Popup dialog,the "item1"is checked,and if i click "item2" in the popup dialog,than "item2" is checked.like display filter in the viewport menu.

@C4DS I just want to understand how it works.(Checked, add event, uncheck)

@C4DS
Maybe my question is not quite right.
Here's the thing:
i have a cube object,if "item 1" is checked,the cube object solo on viewport.if "item1"is unchecked,the cube object is not solo.
Can you give me a simple exaple for this?

@C4DS Thank you very much!
and i have another question；
if "item 1" is checked; my object solo in viewport.
and "item 2" is checked; my object is not solo.
(hope you understand this question )

Hi Plugincafe!
I'm a new python guy and my english is so poor...
I can't understand what is "&c&" ,"&d&" and "&i&" in ShowPopupDialog.
How do they work in Python ??
Thanks.