Testing if the app is already installed on windows package.

Perry Werneck
1 parent 165416ff
Showing 1 changed file with 7 additions and 0 deletions Show diff stats
win/pw3270.nsi.in
@@ -387,6 +387,13 @@ SectionEnd
 Function .onInit
+	#---[ Check if already installed ]--------------------------------------------------------------------
+
+	${If} ${FileExists} "$INSTDIR\@PRODUCT_NAME@.exe"
+		MessageBox MB_OK|MB_ICONEXCLAMATION "@PRODUCT_NAME@ is already installed. Please uninstall it first" /SD IDOK
+		Abort
+	${EndIf}
+
 	#---[ Check SDK Command line option ]-----------------------------------------------------------------
 !ifdef WITHSDK
	@@ -387,6 +387,13 @@ SectionEnd		@@ -387,6 +387,13 @@ SectionEnd
387		387
388	Function .onInit	388	Function .onInit
389		389
		390	+ #---[ Check if already installed ]--------------------------------------------------------------------
		391	+
		392	+ ${If} ${FileExists} "$INSTDIR\@PRODUCT_NAME@.exe"
		393	+ MessageBox MB_OK\|MB_ICONEXCLAMATION "@PRODUCT_NAME@ is already installed. Please uninstall it first" /SD IDOK
		394	+ Abort
		395	+ ${EndIf}
		396	+
390	#---[ Check SDK Command line option ]-----------------------------------------------------------------	397	#---[ Check SDK Command line option ]-----------------------------------------------------------------
391		398
392	!ifdef WITHSDK	399	!ifdef WITHSDK