NSIS如何在unistall部分的messageBox中设置变量

Question

i have a file when in this file there are differents LangString in differents languages. In another file, in the unistall section, i want call into the messagebox, depending on the language, the correct LangString that is in the Langstring file.

In the install section it works fine

Section "Uninstall"

MessageBox MB_YESNO|MB_ICONQUESTION "$(UnSAVE_PROFILE)" IDYES borrar_perfil IDNO no_borrar_perfil
borrar_perfil:
    DeleteRegKey   HKCU "Software\XXX"
    RMDir /r "$APPDATA\mulehome\"
    RMDir /r "$APPDATA\..\Local\XXX\"
no_borrar_perfil:
  Delete "$INSTDIR\XXX"

LangString file:

LangString UnSAVE_PROFILE ${LANG_PORTUGUESE} "Do you want delete the configuration files?"
LangString UnSAVE_PROFILE ${LANG_SPANISH} "Quieres eliminar también los ficheros de configuración?"

Any idea? Thx!!

Answer 1

If you propose a language selection in the installer with (in the .onInit function)

!insertmacro MUI_LANGDLL_DISPLAY 

you can get back that setting in the uninstaller (in the un.onInit function)

!insertmacro MUI_UNGETLANGUAGE

The language setting should be preserved by the installer in the registry, in my setups I precise the location for the persistence:

!define MUI_LANGDLL_REGISTRY_ROOT "HKCU"
!define MUI_LANGDLL_REGISTRY_KEY "Software\${Company}\${AppRegName}"
!define MUI_LANGDLL_REGISTRY_VALUENAME "Installer Language"

Also, don't forget to define separate LangStrings for the unsinstaller (as that application use different string tables) with un. prefix.