honold
13th January 2003 16:35 UTC

command execution before install directory selection
  is it possible to pull this off in nsis2? there are a number of checks (verify valid os, verify user is administrator, check for a previous installation, etc) that i want to do BEFORE the user actually selects the folder they want to install to.

honold
13th January 2003 17:23 UTC

learned to use .onInit, nevermind on most of that...

now researching how to use the installdiregkey with dirshow to only show the directory selection if the key doesn't exist, looks like it's feasible

kichik
13th January 2003 17:27 UTC

Verifying everything is best to be done in .onInit. If you want to do it right before the directory selection page put it in the directory selection page pre-function (Page directory <pre-function> <post-function>).

For example:

Page directory preDirFunc


>Function preDirFunc

 ; verify stuff

FunctionEnd 

>