The phrase “Topmost Normal Window” is one that will be familiar to Genero developers who used the various incarnations of the Genero Web Client from around 2008 or so. For those Genero developers who have stuck solely with the Genero Desktop Client, this maybe a new concept as they move to 4.00 and Universal Rendering.
The concept is that instead of displaying every window and allowing the user to move/resize these windows independently, at most only two windows will be rendered. They are the topmost normal window, and if there is one, the topmost modal window.
For most ISV’s who have moved to the web as being their preferred front-end , this is seen as something in keeping with a typical web interface, and they have transformed their Genero applications to work within this framework.
Read more at
https://4js.com/ask-reuben/ig-187/