Using GetDLLVersion and assign to MUI_VERSION ?

Hi

I have a script that needs to get the version number from an exe file within the installation itself.

I can get the exe version of a file after it has been installed using the below code:

; Get Version of EXE file
GetDLLVersion "$INSTDIR\MyApp.exe" $R0 $R1
IntOp $R2 $R0 / 0x00010000 ; $R2 now contains major version
IntOp $R3 $R0 & 0x0000FFFF ; $R3 now contains minor version
IntOp $R4 $R1 / 0x00010000 ; $R4 now contains release
IntOp $R5 $R1 & 0x0000FFFF ; $R5 now contains build
StrCpy $0 "$R2.$R3.$R4.$R5" ; $0 now contains full version number

What I really want to do is get the version number of MyApp.EXE and assign that version number to the MUI_VERSION var at the start of the script. (I want to set the OutFile as MyApp + MUI_VERSION)

Is this possible ?

Thanks for any help
Geoff Coope

Have a look at the FAQ question "How can I make my script depend on some registry value/the version of my product/<something dynamic>?". It will help you here. What you basically need to do is create another script that will compile your script with makensis /DMUI_VERSION=1.2.3.4. It will get 1.2.3.4 from the script you posted above.

Great idea, I understand.

Thanks
Geoff Coope

Hi Kichik

What is the minimum I need to create this installer that runs my script?

I tried this but it doesn't do anthing.

Caption "Make MyApp"
InstallDir "."
OutFile "make.exe"

Section "Go"
SetOutPath "empty"
Call GetVersion
SectionEnd


; Get Version of EXE file and send to install_data.nsi
; ----------------------------------------------------
Function GetVersion

GetDLLVersion "c:\MyApp.Exe" $R0 $R1

IntOp $R2 $R0 / 0x00010000 ; $R2 now contains major version
IntOp $R3 $R0 & 0x0000FFFF ; $R3 now contains minor version
IntOp $R4 $R1 / 0x00010000 ; $R4 now contains release
IntOp $R5 $R1 & 0x0000FFFF ; $R5 now contains build
StrCpy $0 "$R2.$R3.$R4.$R5" ; $0 now contains string like "1.2.0.192"

Exec '"C:\Program Files\NSIS\makensis.exe /DVERSION=$0 C:\Projects\MyApp\NSIS\install_data.nsi"'

FunctionEnd

Could be wrong, but try prefixing the "Go" name with a minus sign. Sections with a leading minus are always executed, e.g. Section -Go or Section "-Go" (not sure about whether the quotes are needed or not, and no time to test this i'm afraid)

Done it,

Here it is....

This Script will get a version number (if you set one) from your EXE file and pass it to another script (your main install script) as a parameter.

1. Create a script called make.nsi

------------------------------------------------------------------
; Make.nsi
; Geoff Coope
; Gets the Version Number from an EXE file and passes it as
; a parameter $VERSION to another script.

Caption "Make"
InstallDir "."
OutFile "make.exe"
SilentInstall silent

Section "DoNothing"
SectionEnd

Function .onInit

GetDLLVersion "c:\path\afile.exe" $R0 $R1

IntOp $R2 $R0 / 0x00010000 ; $R2 now contains major version
IntOp $R3 $R0 & 0x0000FFFF ; $R3 now contains minor version
IntOp $R4 $R1 / 0x00010000 ; $R4 now contains release
IntOp $R5 $R1 & 0x0000FFFF ; $R5 now contains build
StrCpy $0 "$R2.$R3.$R4.$R5" ; $0 now contains string like "1.2.0.192"

Exec '"C:\Program Files\NSIS\makensis.exe" "/DVERSION=$0" "c:\projects\aProject\data.nsi"'
FunctionEnd

------------------------------------------------------------------
2. Compile the above script and you end up with "Make.exe"
3. Open your main install script (ive called mine data.nsi in the above example) and add the line
!define MUI_VERSION ${VERSION}

4. Run Make.exe and it will:
a) Get version number from exe in the form (x.x.x.x)
b) Calls another script passing the version number as $VERSION to it

You can now create installations that have the Build number in the Folder, path, install file name, registry etc...

Thanks
Geoff Coope

I don't like the method

This method is not very usefull and slow down the compilation process.

Compiling one installer one time is a lot faster than letting NSIS parse your script for __DATE__ and __MYPROG.EXE_VERSION__.