Two install dirs ?

Hi,

first of all, please excuse my approximative English (Foreign Languages have never been a famous strength of french people ^^)

I'm using NSIS & MUI to install several software, and I need :

- to extract data in a temporary folder
- then, to perform the install in a different folder

So, here's the code I try to use :

!insertmacro MUI_PAGE_WELCOME
!insertmacro MUI_PAGE_DIRECTORY ; choose the directory for extraction
!insertmacro MUI_PAGE_COMPONENTS
!insertmacro MUI_PAGE_DIRECTORY ; choose the directory for installation
!insertmacro MUI_PAGE_INSTFILES
!insertmacro MUI_PAGE_FINISH

$INSTDIR is initialized in Function .onInit with the default extraction dir value (let's say C:\Temp) : when the first Directory page appears, C:\Temp is in the textfield. What I'd like to do is to change it after that, so that in the second Directory page, the installation dir (let's say C:\Install) is in the textfield.

I tried to change $INSTDIR between the two Directories pages, unsuccessfully. The directory remains the same (C:\Temp).

Any ideas ?

Hello magicpm7,

It seems to me you can't use two directory pages in the same installer !!!
Use one directory page (the directory will be stocked in $INSTDIR)
Simulate the second in a custom page using for example nsDialog plugin or InstallOption plugin (the directory will be stocked in a global variable that you will create).

In your sections, you will be able to switch between the two directories thanks to the SetOutPath function.

[edit]
Look at the next post, there are a better solution with two directory pages.
[/edit]

You can use two directory pages.

Oh, I forgot an attachment... 🙄

Actually I changed my mind and used another solution (same root directory, two folders : one for extraction, one for installation) but thanks for the answer !

I finally had to use your solution pospec... And indeed I don't have 2 but 3 directory pages ! 🤪

But this brings another question... My script allows the user to choose which products he wabts to install, and depending on the ones he has selected in the !MUI_PAGE_COMPONENTS, I would like to display / hide the corresponding directory page.

For example, if I have these pages :

[CODE]
PageEx directory ; Product1 directory selection
DirText "Set Install Directory for ${Product1_name} :"
DirVar $Product1
Caption ": ${Product1_name}"
PageExEnd

PageEx directory ; Product2 directory selection
DirText "Set Install Directory for ${Product2_name} :"
DirVar $Product2
Caption ": ${Product2_name}"
PageExEnd
[CODE]

and if the user only ticks Product1 in the !MUI_PAGE_COMPONENTS, how can the page for Product2 NOT be displayed ?

Thanks !

pospec's example was for a classic install. If you use MUI, then you should be using the MUI_PAGE_DIRECTORY macros. Before inserting each macro, define your directory variable using MUI_DIRECTORYPAGE_VARIABLE.

If you then want to skip one of the directory pages, then use MUI_PAGE_CUSTOMFUNCTION_PRE function. In your function, you can check for the appropriate condition and then call ABORT if you want to skip the page.