pgrasland
7th December 2009 15:33 UTC

Reading command line parameter at runtime
Hello,

I'm trying to use NSIS to do 2 functions with a single installer.

1) Install my program, and stop
2) Update my program, and launch it with a parameter.

I was hoping to do something like that :

setup.exe, without arguments, will install my program and stop
setup.exe parameter, will update (reinstall) my program and launch "program.exe parameter" at the end of the installation.

I don't know how to check a condition in order to launch / don't launch my program, and I don't know how to read a parameter and launch a program with this parameter as argument.

How NSIS can do this ?

Thanks for your help

MSG
7th December 2009 15:35 UTC

Re: Reading command line parameter at runtime
Why don't you try searching the forums for 'command line parameters'?

Wizou
7th December 2009 16:09 UTC

and search NSIS documentation for 'command line parameters'

pgrasland
7th December 2009 16:47 UTC

Sorry, I didn't understand how GetParameters / GetOptions worked.

Now, I can see how to detect if it's an update or an install, but how can I pass the parameter value to the program ?

Actually, I'm launching a program with the following lines :

; Finish page
!define MUI_FINISHPAGE_RUN "$INSTDIR\MyApp.exe"
!define MUI_FINISHPAGE_RUN_PARAMETERS "test"
!insertmacro MUI_PAGE_FINISH

I don't know how to use a variable as parameter.

Wizou
7th December 2009 17:04 UTC

Var myvar

!define MUI_FINISHPAGE_RUN_PARAMETERS "$myvar"

StrCpy myvar "value"

jdt2oo7
8th December 2009 07:16 UTC

Hi Wizou,

I am also having trouble using variable at runtime. Seem like it has to be a static variable in order for it to work. Below is what I am trying to do, but $Country have to be pre-defined.
Is there anyway it can be variable like how I want it?

Thanks!

===

Var Country

; License page
!define MUI_LICENSEPAGE_CHECKBOX
!insertmacro MUI_PAGE_LICENSE "..\doc\${Country}\license.rtf"

Function CountrySelectionLeave
${NSD_LB_GetSelection} $ListBox $0
StrCpy $Country $0
FunctionEnd

MSG
8th December 2009 07:58 UTC

!insertmacro MUI_PAGE_LICENSE "..\doc\${Country}\license.rtf"
(...)
StrCpy $Country $0

Wizou
8th December 2009 08:32 UTC

@jdt2oo7: You can't select the license text file at runtime (except through multilanguage) because NSIS has to know about those files at compile-time in order to compress them inside the installer.
Your problem is more about the display of a text determined at runtime, and I see you have already opened a different forum thread for that.

Be careful with the various way of using $ in NSIS :

${xxx} refers to a !define xxx (constant at compile-time)
$(xxx) refers to a LangString xxx (translation)
$xxx refers to a Var xxx (variable)
$%xxx% refers to a Windows/DOS environment variable (defined at compile-time)

jdt2oo7
8th December 2009 22:09 UTC

Thanks for your responses, MSG and Wizou!