WindowsFormsHost is always the most top from WPF element

wpf z-index windowsformshost topmost
Andy Kurniawan picture Andy Kurniawan · Mar 29, 2012 · Viewed 16k times · Source

how to set the z-index windowsformhost that they are not always at the top of the WPF element ?

Answer

Klaus78 picture Klaus78 · Mar 29, 2012

According to MSDN (Layout Considerations for the WindowsFormsHost Element)

A hosted Windows Forms control is drawn in a separate HWND, so it is always drawn on top of WPF elements.

This is a design limitation

Another good article from MSDN that explains possible issues when using different graphical technologies in Windows is Technology Regions Overview

However googling I found that there seem to be some hackings for this (known as airspace restriction)

One hack (never tried it personally so not sure if it works) is at this link

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