Helping with Focus Issues
All front-ends have to deal with trying make a 'nice' launch for an emulator and keeping the emulator in keyboard focus.
Due to windows secruity (malware). Windows prevents an app from moving or forcing a certain window because malware could abuse that.
So certain different 'tricks' are found… most work, some don't for all emulators.
This method here should be done as a last attempt if the other 'normal' tricks don't work.
first, if you don't have Popper v1.4.1 or newer, grab the latest vpxstarter.exe here and place/overwrite in the LAUNCH sub-folder of pinupsystem.
https://www.nailbuster.com/pinupdates/VPXStarter_v14_1.zip
for VPX sample, change your vpxstarter in launch script like this:
START "" "[STARTDIR]Launch\VPXSTARTER.exe" 30 10 60 "Visual Pinball Player" 3 0 5
you can increase the 3 value up to 10 or more if it still doesn't help.