Hello,
Can you run a VBScript custom action when the progress dialog of either the main installation or prerequisite installation dialog is shown? I added the custom action to the Init Events section and did not work.
Yes, this is possible. For example, I have tested this using a VBScript that simply shows a message box before the "ProgressDlg" of my main package. After creating the custom action without sequence, I went to Dialogs page and added on the "ProgressDlg" the Init Event with the following parameters:Can you run a VBScript custom action when the progress dialog of either the main installation or prerequisite installation dialog is shown?
Code: Select all
'on error resume next
WriteIni Session.Property("MY_FILE_PATH"), "Default", "Level", "One"
Function ReadIni( myFilePath, mySection, myKey )
' This function returns a value read from an INI file
'
' Arguments:
' myFilePath [string] the (path and) file name of the INI file
' mySection [string] the section in the INI file to be searched
' myKey [string] the key whose value is to be returned
'
' Returns:
' the [string] value for the specified key in the specified section
'
' CAVEAT: Will return a space if key exists but value is blank
'
' Written by Keith Lacelle
' Modified by Denis St-Pierre and Rob van der Woude
Const ForReading = 1
Const ForWriting = 2
Const ForAppending = 8
Dim intEqualPos
Dim objFSO, objIniFile
Dim strFilePath, strKey, strLeftString, strLine, strSection
Set objFSO = CreateObject( "Scripting.FileSystemObject" )
ReadIni = ""
strFilePath = Trim( myFilePath )
strSection = Trim( mySection )
strKey = Trim( myKey )
If objFSO.FileExists( strFilePath ) Then
Set objIniFile = objFSO.OpenTextFile( strFilePath, ForReading, False )
Do While objIniFile.AtEndOfStream = False
strLine = Trim( objIniFile.ReadLine )
' Check if section is found in the current line
If LCase( strLine ) = "[" & LCase( strSection ) & "]" Then
strLine = Trim( objIniFile.ReadLine )
' Parse lines until the next section is reached
Do While Left( strLine, 1 ) <> "["
' Find position of equal sign in the line
intEqualPos = InStr( 1, strLine, "=", 1 )
If intEqualPos > 0 Then
strLeftString = Trim( Left( strLine, intEqualPos - 1 ) )
' Check if item is found in the current line
If LCase( strLeftString ) = LCase( strKey ) Then
ReadIni = Trim( Mid( strLine, intEqualPos + 1 ) )
' In case the item exists but value is blank
If ReadIni = "" Then
ReadIni = " "
End If
' Abort loop when item is found
Exit Do
End If
End If
' Abort if the end of the INI file is reached
If objIniFile.AtEndOfStream Then Exit Do
' Continue with next line
strLine = Trim( objIniFile.ReadLine )
Loop
Exit Do
End If
Loop
objIniFile.Close
Else
WScript.Echo strFilePath & " doesn't exists. Exiting..."
Wscript.Quit 1
End If
End Function
Sub WriteIni( myFilePath, mySection, myKey, myValue )
' This subroutine writes a value to an INI file
'
' Arguments:
' myFilePath [string] the (path and) file name of the INI file
' mySection [string] the section in the INI file to be searched
' myKey [string] the key whose value is to be written
' myValue [string] the value to be written (myKey will be
' deleted if myValue is <DELETE_THIS_VALUE>)
'
' Returns:
' N/A
'
' CAVEAT: WriteIni function needs ReadIni function to run
'
' Written by Keith Lacelle
' Modified by Denis St-Pierre, Johan Pol and Rob van der Woude
Const ForReading = 1
Const ForWriting = 2
Const ForAppending = 8
Dim blnInSection, blnKeyExists, blnSectionExists, blnWritten
Dim intEqualPos
Dim objFSO, objNewIni, objOrgIni, wshShell
Dim strFilePath, strFolderPath, strKey, strLeftString
Dim strLine, strSection, strTempDir, strTempFile, strValue
strFilePath = Trim( myFilePath )
strSection = Trim( mySection )
strKey = Trim( myKey )
strValue = Trim( myValue )
Set objFSO = CreateObject( "Scripting.FileSystemObject" )
Set wshShell = CreateObject( "WScript.Shell" )
strTempDir = wshShell.ExpandEnvironmentStrings( "%TEMP%" )
strTempFile = objFSO.BuildPath( strTempDir, objFSO.GetTempName )
Set objOrgIni = objFSO.OpenTextFile( strFilePath, ForReading, True )
Set objNewIni = objFSO.CreateTextFile( strTempFile, False, False )
blnInSection = False
blnSectionExists = False
' Check if the specified key already exists
blnKeyExists = ( ReadIni( strFilePath, strSection, strKey ) <> "" )
blnWritten = False
' Check if path to INI file exists, quit if not
strFolderPath = Mid( strFilePath, 1, InStrRev( strFilePath, "\" ) )
If Not objFSO.FolderExists ( strFolderPath ) Then
WScript.Echo "Error: WriteIni failed, folder path (" _
& strFolderPath & ") to ini file " _
& strFilePath & " not found!"
Set objOrgIni = Nothing
Set objNewIni = Nothing
Set objFSO = Nothing
WScript.Quit 1
End If
While objOrgIni.AtEndOfStream = False
strLine = Trim( objOrgIni.ReadLine )
If blnWritten = False Then
If LCase( strLine ) = "[" & LCase( strSection ) & "]" Then
blnSectionExists = True
blnInSection = True
ElseIf InStr( strLine, "[" ) = 1 Then
blnInSection = False
End If
End If
If blnInSection Then
If blnKeyExists Then
intEqualPos = InStr( 1, strLine, "=", vbTextCompare )
If intEqualPos > 0 Then
strLeftString = Trim( Left( strLine, intEqualPos - 1 ) )
If LCase( strLeftString ) = LCase( strKey ) Then
' Only write the key if the value isn't empty
' Modification by Johan Pol
If strValue <> "<DELETE_THIS_VALUE>" Then
objNewIni.WriteLine strKey & "=" & strValue
End If
blnWritten = True
blnInSection = False
End If
End If
If Not blnWritten Then
objNewIni.WriteLine strLine
End If
Else
objNewIni.WriteLine strLine
' Only write the key if the value isn't empty
' Modification by Johan Pol
If strValue <> "<DELETE_THIS_VALUE>" Then
objNewIni.WriteLine strKey & "=" & strValue
End If
blnWritten = True
blnInSection = False
End If
Else
objNewIni.WriteLine strLine
End If
Wend
If blnSectionExists = False Then ' section doesn't exist
objNewIni.WriteLine
objNewIni.WriteLine "[" & strSection & "]"
' Only write the key if the value isn't empty
' Modification by Johan Pol
If strValue <> "<DELETE_THIS_VALUE>" Then
objNewIni.WriteLine strKey & "=" & strValue
End If
End If
objOrgIni.Close
objNewIni.Close
' Delete old INI file
objFSO.DeleteFile strFilePath, True
' Rename new INI file
objFSO.MoveFile strTempFile, strFilePath
Set objOrgIni = Nothing
Set objNewIni = Nothing
Set objFSO = Nothing
Set wshShell = Nothing
End Sub
I understand. Thank you for your help.Indeed, I was able to reproduce this behavior. It seems like this is an issue of Advanced Installer in what regards the support for Init Events for the Pre-Install prerequisites dialog.
A fix will be available in a future version of Advanced Installer, thank you for bringing this to our attention.
We will update this thread as soon as a fix will be available.
I understand. Thank you for your help.Indeed, I was able to reproduce this behavior. It seems like this is an issue of Advanced Installer in what regards the support for Init Events for the Pre-Install prerequisites dialog.
A fix will be available in a future version of Advanced Installer, thank you for bringing this to our attention.
We will update this thread as soon as a fix will be available.
Code: Select all
AI_INSTALL AND ( ( (&PrereqFeature = 3) AND NOT (!PrereqFeature = 3) ) )
Will this work for ".NET Framework 4.5" and "SQL Server Express"?As a workaround, you can add you prerequisite as a "Feature-Based" prerequisite. This way, a new feature will be created for each of your prerequisites, thus you will be able to condition the execution of your VBSript Custom Action based on the state of the feature that contains the prerequisite, if it was / was not selected for install.
I would not recommend you to put .NET Framework 4.5 and SQL Server Express as feature based prerequisites.Will this work for ".NET Framework 4.5" and "SQL Server Express"?
The dummy installer shows under the main prerequisite in the dialog. Is there a way to hide it?After building the dummy project, add it as a "Pre-Install" prerequisite.
Will this function be added in the future?Unfortunately, we do not have support to hide a certain prerequisite from "PrerequisitesDlg" dialog.