How to create a popup window

Hi everybody,

 

I would like to know the command to create a popup window like in the attached file:

 

I know that the window will appear by usage of command:

 

tk_messageBox -message 'some message' -type yesno

 

 

But is it possible to define a user specific input and add a image?

 

Thanks in advance

 

 

<?xml version="1.0" encoding="UTF-8"?>