How to retrieve the names of macros from an Excel workbook by using Visual Basic 6.0 (315731)

SUMMARY

This step-by-step article describes how to use Visual Basic 6.0 to retrieve the names of macros from an Excel workbook.

Requirements

The following items describe the recommended hardware, software, network infrastructure, skills and knowledge, and service packs that you need:

• Excel 2000, Excel 2002, or Office Excel 2003
• Excel macros
• Visual Basic for Applications

Create an Excel workbook with two macros

1. Start Excel. A new blank workbook is created.
2. On the Tools menu, point to Macro, and then click Visual Basic Editor to start the Visual Basic Editor.
3. In Project Explorer, double-click ThisWorkbook to start the code editor.
4. Paste the following code for two simple macros in the code editor:

   Option Explicit
   
   Sub Macro_A()
       MsgBox "This is Macro A"
   End Sub
   
   Sub Macro_B()
       MsgBox "This is Macro B"
   End Sub
   					

5. Close the Visual Basic Editor, and return to the spreadsheet view.
6. Save the workbook as C:\Abc.xls.
7. Close the workbook and quit Excel.

Create a Visual Basic application to list the macros in the workbook

1. In Visual Basic 6.0, create a new Standard EXE project.
2. On the Project menu, click References. In the References dialog box, select the following references:
   • Microsoft Visual Basic for Applications Extensibility 5.3
   • For Microsoft Excel 2000:
     Microsoft Excel 9.0 Object Library
   • For Microsoft Excel 2002:
     Microsoft Excel 10.0 Object Library
   • For Microsoft Office Excel 2003:
     Microsoft Excel 11.0 Object Library
3. Click OK.
4. Add a button to the form. The button has the default name Command1.
5. Add a list box to the form. The list box has the default name List1.
6. Define a click event handler procedure for the button. Use the following code for this procedure, to display information about the macros that are defined in C:\Abc.xls:

   Private Sub Command1_Click()
       ' Declare variables to access the Excel workbook.
       Dim objXLApp As Excel.Application
       Dim objXLWorkbooks As Excel.Workbooks
       Dim objXLABC As Excel.Workbook
       
       ' Declare variables to access the macros in the workbook.
       Dim objProject As VBIDE.VBProject
       Dim objComponent As VBIDE.VBComponent
       Dim objCode As VBIDE.CodeModule
       
       ' Declare other miscellaneous variables.
       Dim iLine As Integer
       Dim sProcName As String
       Dim pk As vbext_ProcKind
       
       ' Open Excel, and open the workbook.
       Set objXLApp = New Excel.Application
       Set objXLWorkbooks = objXLApp.Workbooks    
       Set objXLABC = objXLWorkbooks.Open("C:\ABC.XLS")
       
       ' Empty the list box.
       List1.Clear
       
       ' Get the project details in the workbook.
       Set objProject = objXLABC.VBProject
   
       ' Iterate through each component in the project.
       For Each objComponent In objProject.VBComponents
   
           ' Find the code module for the project.
           Set objCode = objComponent.CodeModule
   
           ' Scan through the code module, looking for procedures.
           iLine = 1
           Do While iLine < objCode.CountOfLines
               sProcName = objCode.ProcOfLine(iLine, pk)
               If sProcName <> "" Then
                   ' Found a procedure. Display its details, and then skip 
                   ' to the end of the procedure.
                   List1.AddItem objComponent.Name & vbTab & sProcName
                   iLine = iLine + objCode.ProcCountLines(sProcName, pk)
               Else
                   ' This line has no procedure, so go to the next line.
                   iLine = iLine + 1
               End If
           Loop
           Set objCode = Nothing
           Set objComponent = Nothing
       Next
   
       Set objProject = Nothing
       
       ' Clean up and exit.
       objXLABC.Close
       objXLApp.Quit
   End Sub
   					

Test the sample

1. Build and run the application.
2. Click the command button. The list box displays the names of all of the macros and the workbook that contains them, as follows:

   ThisWorkbook    Macro_A
   ThisWorkbook    Macro_B
   					

Troubleshooting

Because of enhanced security provisions in Excel 2002 and Excel 2003, you may receive the following error message from the Visual Basic program when you use Excel 2002 or Excel 2003: For more information about this problem and how to resolve it, click the following article number to view the article in the Microsoft Knowledge Base: