In this page, the animated image on top shows the exact use case what I want.
The screen was part of main window and when user clicks top-right corner button, the exact screen comes out of main window as secondary window.
One more thing I want is when user clicks another button, the windows go back to the main windows as it was.
I read the document and uwp sample applications, but None of them actually behavior like the image on the page. All examples shows another popup of secondary page.
How can I achieve the use case in uwp app? Any example?