Code: https://github.com/ZILtoid1991/iota/blob/main/inputtest/app.d
https://github.com/ZILtoid1991/iota/blob/main/source/iota/window/base.d#L104Second one contains the constructor that should make the window without any issues.
When I try to create a window for testing purposes, I get nothing besides of an icon on the taskbar. Once I was able to get a quite broken window to show up, then it doesn't showed up anymore. Calling the API function `IsWindowVisible` returns true.