Trying to convert 32-Bit Excel Macros into 64-Bit - excel

I'm trying to run an Excel loaded with multiple macros. It was written for a 32-Bit and work upgraded me to a 64-Bit to do Power BI reporting.
The Excel macros are spitting out errors. I tried to use other threads to help me convert it. However I keep having the debugger come back to me about the last line.
I found this comment on a similar thread and used it as a guideline to alter my code and was able to remove some of the data type errors I was being thrown.
Manually add PtrSafe to all declarations. Manually convert all Longs in the declarations that represent pointers to LongPtrs (in the code shown, that would be only pidl). Manually update declarations of Long variables in procedures that are passed as these parameters to LongPtr. There's no other way. You may try to look into refactoring tools/addins that may automate the replacements to a degree.
Set objmyconn = New ADODB.Connection
Set Objmycmd = New ADODB. Connection
Set obmyrecordset= New ADODB.Recordset
objmyconn.ConnectionTImeout = 0
objmyconn.Open "DSN=UU####; uid=NAME; pwd:1234"
Run-time error '2147467259 (80004005)':

Related

64-bit Excel 365 crashes, 32-bit Excel 365 works fine

I have a question relating to the differences between the 32 bit and 64 bit versions of Excel and VBA.
I am working in Office 365, 64 bit. (I am using 64 bit because I ran into memory issues and as a test, to see if 64 bit works for our company). I am working on an Excel file which has a lot of VBA code used to gather product properties from SQL, calculate parameters from these properties, and output everything to another SQL database. In addition, the Excel file outputs PDF files.
The Excel file is stored as a template, so that users can open the template and save the new file to their respective workspace. At the moment, the users are using Office 365, 32 bit.
When I open the Excel template, Excel closes itself. It seems to crash before calculating the parameters on the new file. There is no error message; in the lower-right message box I can see that Excel doesn't get to the calculating stage.
However, when the other users open the file in 32-bit Excel, everything is fine.
I am not using pointers (no PtrSafe) and no LongLong variables.
I also have no compile errors.
I am currently rebuilding the Excel file by saving it as a file without macro's, and then copying the VBA modules - a different site mentioned the VBA code may be corrupt. I am halfway through adding macro's, and the error pops up again; the VBA code I have added last has been in use for about a year so I am tempted to exclude it as a culprit.
Where would you suggest I look to find the problem?
You're absolutely right of course. I have gone back to the last working version and began adding a text logfile, which would log the start and end of each procedure. I got lucky as the file crashed as I was doing this, and the logfile pointed me towards a procedure seemed to be working, until the right conditions were met for it to crash.
The procedure itself accesses global variables which were not initialised. I didn't catch errors that could occur properly. For some reason, this works fine in x86 Excel, doesn't trigger any problems in the compiler or during debugging but crashes in x64 Excel when enough memory is used.
Gekozen_Assen is the name of a global variable. It is a dictionary which contains information. I had tried to use .Exists as a method to test if the required item in the dictionary exists, but this doesn't work if the dictionary isn't initialized at all.
The errorous code:
GetFromGlobal = ""
If Global_Dictionary.Exists(Answer_Type) Then
GetFromGlobal = Global_Dictionary.Item(Answer_Type)
Else
GetFromGlobal = "Error!"
End If
Instead I should've been using "Is Nothing", the fixed code below:
If Global_Dictionary Is Nothing Then
GetFromGlobal = "Error: Dictionary not initialized"
Else
If Global_Dictionary.Exists(Answer_Type) Then
GetFromGlobal = Global_Dictionary.Item(Answer_Type)
Else
GetFromGlobal = "Error: Dictionary item not found"
End If
End If

Workbook Subroutines cannot be called directly by name anymore from VB6

I have a vb6 program that calls Macros from an Excel file.
Until recently it worked fine (for years), but now it throws an error.
We get a runtime 438 "Object doesn't support this property or method" error.
As an example you can use this simple vb6 program:
Set App = CreateObject("Excel.Application")
Set wrkbook = App.Workbooks.Open(fileName)
App.visible = True
wrkbook.Test
The above code doesn't work anymore.
Instead, if we replace the last line with this:
wrkbook.Application.Run "ThisWorkbook.Test"
it works.
The Excel reference used for this, was "Microsoft Excel 16.0 Object Library"
This has been tested against Excel 2010, 2013, Excel365 with the same results.
Also security settings are all set off in Excel.
Before changing my entire codebase and use Application.Run, I would know why this is happening.
Also using Application.Run has also some downsides, like calling both private & public subs and exceptions thrown are not propagated back to vb6.
Are there other considerations for using Application.Run?
Did Microsoft changed something lately (Scurity update), or am I doing something wrong?
I found the problem, thanks to #UuDdLrLrSs comment.
Problem was the use of early binding.
All Excel objects should use late binding.
More specific, the workbook should be declared as object:
Dim wrkbook As Object 'New Excel.Workbook
Otherwise it cannot recognize/find your Macro method.

MATLAB 2015b broken ActiveX/Excel Controls

Having an issue involving the creation of ActiveX handles using MATLAB 2015b. Before updating (from 2013a) I used to create a new Excel application handle using the following 'try catch':
global Excel
try
Excel = actxGetRunningServer('Excel.Application') ;
catch
Excel = actxserver('Excel.Application');
end
Since updating to 2015b, the code still runs through without error, but now the Excel handle created, whilst still of type Excel_Application, has no properties. Calling Excel.get returns a struct with no fields.
Apart from the update, there haven't been any other changes made to the code, and the version of MS Office hasn't changed.
Have there been any changes in the way MATLAB handles the ActiveX interface, or is there something wrong with my code?

Compatibility Between MS-Access 2003 and MS-Excel 2013

This is similar to a question that I've asked yesterday, but I've managed to find a fair bit more information: enough to warrant a new question, I feel.
My office has recently moved to Windows 7 along with Office 2013 - with the except of Access which has stayed as 2003.
Access works absolutely fine except when I try to automate Excel. This is a feature of nearly all my applications.
When I load an old project, the reference is automatically updated to "Microsoft Excel 15.0 Object Library" - it is held as an EXE file in Program Files (x86). Note: it does not say the reference is missing.
When I try to run any code which uses early binding, it fails with the following error message: "Error in loading DLL"
I've since tried late binding by doing the following:
Dim app As Object
Dim wb As Object
Set app = CreateObject("Excel.Application")
app.Visible = True
Set wb = app.Workbooks.Add
This creates the Application, it becomes visible, a Workbook is added, but then I get the following error: "Run-time error '1004':
Application-definted or object-defined error"
If I try to access VBA in the new Workbook I get the following error: "An error occurred initializing the VBA libraries (1004)" The Workbook is loaded in "Compatibility Mode"
The above leads me to believe that the 2 applications may not be compatable, but the following is worth considering:
If I try to use early binding I don't get the Intellisense drop-downs but words like Workbook and Worksheet do auto-capitalise themselves as you would normally expect them to. The code won't compile at all if I don't have the reference set, but it does compile - and throw and error - when it is. I've since tried Word 2013 - who's Object Reference is an OLB file rather than EXE - and I get the full Intellisense features I would except, but it still throws the same error when trying to run.
In a nut shell, does anyone know if I stand any chance of having the 2 work together?
Thanks

Excel VBA Compile Error

We have an excel spread sheet which we use and it works for most machines but bombs out with 'Compile Error in Hidden Module - General' on others, and the reason appears to be due to missing References.
We check that Macros is enabled but still doesn't help.
Since we protect this excel spread sheet with a password, we don't want to be giving this password out to our users to check the References, and wondered if anyone had any idea how I can add VBA code to check whether the References required for the excel spread sheet is there and if not then bring up a message box to advise the user.
The References we use are as follows:
Visual Basic For Applications
Microsoft Excel 11.0 Object Library
Microsoft Forms 2.0 Object Library
Microsoft Windows Common Controls 5.0 (SP2)
Alternatively, if anyone has any other suggestions on how to go about this problem, that would be great.
The only reference you have listed that could possibly be missing is the common controls. The rest are default in every version of Excel. The Forms one is only if you have a userform or explicitly set it, but that's not your problem. Common Controls is your problem. It doesn't ship with Office anymore. If you have Visual Studio or VB6 you probably have it. Or an old version of Office like XP Developer Edition.
Anyway, you can check for the existence of the OCX file in the System folder. I don't think it's required to be in that folder, but I've never seen it anywhere else.
It's been quite a while since I've seen a reference to 5.0, so I included how to find 6.0 in the code below. Check to make sure you know what version you're using.
In a standard module:
Private Declare Function GetSystemDirectory Lib "kernel32" Alias "GetSystemDirectoryA" (ByVal lpBuffer As String, ByVal nSize As Long) As Long
Public Function HasCommonControl() As Boolean
Dim sFolder As String
Dim lReturn As Long
Const lSIZE As Long = 255
Const sDLLNAME As String = "COMCTL32.OCX" 'For windows common control 5.0
'Const sDLLNAME As String = "MSCOMCTL.OCX" 'For windows common control 6.0
sFolder = Space(lSIZE)
lReturn = GetSystemDirectory(sFolder, lSIZE)
sFolder = Left$(sFolder, lReturn)
HasCommonControl = Len(Dir(sFolder & Application.PathSeparator & sDLLNAME)) > 0
End Function
Having said all that, why are you using common controls? If it's for a treeview on a userform, then check out this all-vba treeview
http://www.jkp-ads.com/articles/treeview.asp
Since jkp wrote that, I haven't used common controls. So few normal-people PCs have it installed that it's just a pain.
Depending on a reference to a specific Excel or other component version is one possible problem. Switching to late binding would solve that problem, so long as you're careful not to use any commands/objects/methods/properties that are supported in one version and not another.
Following up on RowanC's link (good choice), you can add a reference to Excel, for example and write your code like so:
Dim xlWks as Excel.Worksheet
'Dim xlWks as Object
Once everything's debugged, remove the Excel reference and change the declarations to:
'Dim xlWks as Excel.Worksheet
Dim xlWks as Object
That gives you the benefit of intellisense while coding/debugging but removes the dependency on a specific version of Excel later.
Might be mistaken, but IIRC the Common Controls component is part of Visual Basic, not Office, so unless you distribute it and register it along with your app, it might not be present on some systems.
To try late binding, which doesn't need the references setup (although it may have a performance hit, and it will mean that autocomplete doesn't work in your code) instead of calling excel in the following way:
Dim oExcel As Excel.Application
Set oExcel = CreateObject("Excel.Application")
try calling it this way, and drop the reference to the excel object model.
Dim oExcel As Object
Set oExcel = CreateObject("Excel.Application")

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