I'm trying to display a toast notification after a timer runs out of a given time, the user can close it by clicking anywhere of that notification UI. I can do it by using default notification control but I want to use custom icon based on notification type, with sound. Using default notification control working fine in Windows 10 but Windows 7 notification doesn't look pretty well. So I need a generic implementation so that all Windows OS (7, 8, 10) showing it properly.
Here's a screenshot to better understanding.