[peterw] 31036: - Prevent multiple instances of the installer from running.

Author: peterw
Date: Thu Dec  6 08:54:22 2007
New Revision: 31036

URL: http://svn.reactos.org/svn/reactos?rev=31036&view=rev
Log:
- Prevent multiple instances of the installer from running.

Modified:
    trunk/tools/RosBE/RosBE-Windows/RosBE.nsi

Modified: trunk/tools/RosBE/RosBE-Windows/RosBE.nsi
URL: http://svn.reactos.org/svn/reactos/trunk/tools/RosBE/RosBE-Windows/RosBE.nsi...
==============================================================================
--- trunk/tools/RosBE/RosBE-Windows/RosBE.nsi (original)
+++ trunk/tools/RosBE/RosBE-Windows/RosBE.nsi Thu Dec  6 08:54:22 2007
@@ -42,6 +42,11 @@
 ;; Read our custom page ini, remove previous version.
 ;;
 Function .onInit
+    System::Call 'kernel32::CreateMutexA(i 0, i 0, t "RosBE-v${PRODUCT_VERSION}-Installer") i .r1 ?e'
+    Pop $R0
+    StrCmp $R0 0 +3
+        MessageBox MB_OK|MB_ICONEXCLAMATION "The ${PRODUCT_NAME} v${PRODUCT_VERSION} installer is already running."
+        Abort
     ${If} ${RunningX64}
         StrCpy $INSTDIR "$PROGRAMFILES64\RosBE"
     ${Else}