How do I prompt for a disc until the user inserts the right one?

Archive: How do I prompt for a disc until the user inserts the right one?

altie
2nd February 2010 00:37 UTC

How do I prompt for a disc until the user inserts the right one?
I've spent about a week of poking at this, working on other parts of my installer and coming back to it. The EnumCDs, CABSetup and Cdrom plugins all look relevant but I haven't found an example of how to check for a particular disc.

The context for my request: I'm building an installer that grabs a bunch of patches off a network drive, installs some games from disc (Crysis in particular is one I'm working on) and then it applies the patches.

Thanks for your help.

MSG
2nd February 2010 06:47 UTC

The CD-ROM plugin isn't going to work - it doesn't support DVDs. I created some functions once that will probably do what you need: http://nsis.sourceforge.net/DVD_functions

I still use it to my satisfaction, maybe it'll do you some good.

altie
2nd February 2010 16:32 UTC

I missed your page, looks helpful. I got it working with GetDrives though.


!include FileFunc.nsh
!include LogicLib.nsh
!include nsDialogs.nsh

Function isCrysisDVD
  DetailPrint "Checking for Crysis DVD in $9"
  ${If} ${FileExists} "$9\Crysis.msi"
    StrCpy $CrysisInstallerFound True
    DetailPrint "Crysis disc found: $9"
    ExecWait "msiexec /i $9\Crysis.msi"
    StrCpy $0 StopGetDrives
  ${EndIf}
  Push $0
FunctionEnd

Section "Crysis"
  CrysisFindDisc:
    ${GetDrives} "CDROM" "isCrysisDVD" 
    Pop $0
    StrCmp $CrysisInstallerFound True CrysisDone
  CrysisRetryCancel:
    MessageBox MB_RETRYCANCEL "Please insert a Crysis DVD.  If you wish to skip installing Crysis, click cancel." IDRETRY CrysisFindDisc
  CrysisDone:
SectionEnd

If you can think of anything I can do to improve this code, let me know. I may refactor it to use your functions later. Either way, a piece of sample code for this task on that page would be very helpful. I'll post it if I end up using your functions.

Afrow UK
2nd February 2010 22:16 UTC

Easiest thing to do is to save $EXEDIR somewhere and use the first character of that as the CD/DVD drive for further disks. That is of course assuming the user won't decide to put the next disk in another CD/DVD drive.

Stu

Joel
3rd February 2010 05:43 UTC

The idea is to use an ini file with some data, which the installer, when asks for the next CD/DVD, will search and read that data from the ini.

MSG
3rd February 2010 07:38 UTC

Joel: Since altie is making a mod/patch/whatever installer for Crysis, modifying the DVD isn't an option.