On a Windows 10 PC with a HiDPI/Retina display, the default launch configuration dialog (*) is cut off, leaving the OK and Cancel buttons inaccessible. As far as I can tell, this dialog is not resizable, either (not that I think it should be.)
(*) The dialog that you see when you haven't created your own launch configurations for a project.
The user has to use ENTER, ESC or the X button instead.
Environment:
Eclipse Plugin 3.0.6
Windows 10
Dell XPS 13 9343 (2015)
Resolution: 3200 x 1800
OS Display Scaling: right-click Desktop, Display Settings, Change the size of text..., 150% or larger
In my case, the dialog is only displayed normally if the scaling is set to 125% or smaller. 125% translates to an effective resolution of 2560x1600, which means the text is pretty small. 100% is unusable. And Windows recommends 250%, for an effective resolution of 1280 x 800.
For comparison, the default effective resolution of MacBook Pros is 1280x800, 1440x900, or 1680x1050.
In other words, nobody is using anything close to 2560x1600 as their default effective resolution, but it's the lowest resolution where the launch config dialog works properly on a HiDPI/Retina display (at least on Windows).
This should probably be recreateable on most Windows HiDPI laptop / desktop monitors, especially if their native resolution is 2560x1600 or higher..
Screenshot: [IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/i.postimg.cc\/ZR8PP2c3\/launch-hidpi.png"}[/IMG2]