add "install for all users" features. Preserve configuration file on upgrade

Author: crocsg

nsis/desktopbraillerap.nsi

@@ -1,20 +1,18 @@
-!include "MUI2.nsh"
-
-
-
-
-
 ; DesktopBrailleRAP.nsi
 ;
 ; This script is based on example1.nsi, but it remember the directory, 
 ; has uninstall support and (optionally) installs start menu shortcuts.
 ;
-; It will install example2.nsi into a directory that the user selects.
+; This script will install DesktopBrailleRAP software and necessary drivers
+; to control UART for BrailleRAP communication.
 ;
-; See install-shared.nsi for a more robust way of checking for administrator rights.
-; See install-per-user.nsi for a file association example.
+; This file is licensed under GPL V3 as DesktopBrailleRAP software
+; .
 
 ;--------------------------------
+!include "LogicLib.nsh"
+
+!include "MUI2.nsh"
 
 ; The name of the installer
 Name "DesktopBrailleRAP"
@@ -47,11 +45,22 @@ InstallDirRegKey HKLM "Software\DesktopBrailleRAP" "Install_Dir"
 !define MUI_HEADERIMAGE_BITMAP "${NSISDIR}\Contrib\Graphics\Header\win.bmp" ; optional
 ;!define MUI_ABORTWARNING
 
+!define UNINSTKEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\$(^Name)"
+!define MULTIUSER_INSTALLMODE_DEFAULT_REGISTRY_KEY "${UNINSTKEY}"
+!define MULTIUSER_INSTALLMODE_DEFAULT_REGISTRY_VALUENAME "CurrentUser"
+!define MULTIUSER_INSTALLMODE_INSTDIR "$(^Name)"
+!define MULTIUSER_INSTALLMODE_COMMANDLINE
+!define MULTIUSER_EXECUTIONLEVEL Admin
+!define MULTIUSER_MUI
+
+!include "MultiUser.nsh"
+
 
 ; Pages
 !insertmacro MUI_PAGE_WELCOME
 ;!insertmacro MUI_PAGE_LICENSE "${NSISDIR}\Docs\Modern UI\License.txt"
 ;!insertmacro MUI_PAGE_LICENSE "${NSISDIR}\Docs\Modern UI\License.txt"
+!insertmacro MULTIUSER_PAGE_INSTALLMODE
 !insertmacro MUI_PAGE_COMPONENTS
 !insertmacro MUI_PAGE_DIRECTORY
 !insertmacro MUI_PAGE_INSTFILES
@@ -61,6 +70,14 @@ InstallDirRegKey HKLM "Software\DesktopBrailleRAP" "Install_Dir"
 
 !insertmacro MUI_LANGUAGE "English"
 !addplugindir ".\"
+Function .onInit
+  !insertmacro MULTIUSER_INIT
+FunctionEnd
+
+Function un.onInit
+  !insertmacro MULTIUSER_UNINIT
+FunctionEnd
+
 
 ;--------------------------------
 
@@ -74,7 +91,9 @@ Section "DesktopBrailleRAP (required)"
 
     ; Put file there
     File "DesktopBrailleRAP.exe"
+    SetOverwrite off
     File "desktop_brap_parameters.json"
+    SetOverwrite on
     File "_internal.zip"