How to change Progress bar length in MUI instfiles page and arrange button position?

Question

I'm using the MUI Page INSTFILES in my Installer and I want to change the length of the Progress bar and the Position of the "Show Details" Button in it. Is this possible still using the MUI Page or do I have to make my own custom Page with nsDialogs ?

Answer 1

You can use Resource Hacker to edit ${NSISDIR}\\Contrib\\UIs\\modern.exe and then use this new UI resource:

!define MUI_UI myNewUI.exe
!include MUI2.nsh
...

The other alternative is to call SetWindowPos or MoveWindow with the system plugin at run-time but this is a bit harder to do...