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    Standard and ActiveX .exe projects: A Beginner’s Guide...Contd.

6.      Appendices:

Appendix A: Class Module

Appendix B: Form ActiveX

Appendix C: Standard Module

Appendix D: Standard EXE Form code  

6.1 Appendix A:

Option Explicit

Public Function LoadForm(numbers_disp As Boolean, alphabets_disp As Boolean)

   'Load the form

   Load frmActivexEx

   frmActivexEx.Caption = frmActivexEx.Caption

   'make the controls on the form as disabled initailly

   frmActivexEx.cboAlphabets.Enabled = False

   frmActivexEx.cboNumbers.Enabled = False

   'Based on the option user selected

   'make its correspondins drop-down box enabled

   If numbers_disp = True Then

      frmActivexEx.cboNumbers.Enabled = True

   ElseIf alphabets_disp = True Then

      frmActivexEx.cboAlphabets.Enabled = True

   End If

   frmActivexEx.Show

End Function

Private Sub Class_Initialize()

   'selectedItem is a global variable declared in module

   'set it to nothing initially

   'whcih implies that no item has been selected

   selectedItem = "Nothing"

End Sub

Private Sub Class_Terminate()

   'on terminating unload the form

   Unload frmActivexEx

End Sub

Public Function getselectedchar() As String

   'function that gets the item selected in the drop-down box

   getselectedchar = selectedItem

End Function

6.2 Appendix B

Option Explicit

Private Sub cboAlphabets_Click()

   'assign the selectedItem variable

   'to the item that is selected in the drop-down box

   selectedItem = cboAlphabets.Text

End Sub

Private Sub cboNumbers_Click()

   'assign the selectedItem variable

   'to the item that is selected in the drop-down box

   selectedItem = cboNumbers.Text

End Sub

Private Sub cmdSelAndClose_Click()

   Unload Me

End Sub

6.3 Appendix C

Option Explicit

'global variable which stores the item

'selected in drop-down box

Public selectedItem As String

7.4 Appendix D

'variable of type clsActivexEx class in Activex_ex component

Dim actvixTest As clsActivexEx

Option Explicit

Private Sub cmdCallActivex_Click()

   'create an object for class clsActivexEx in AxtivexEx component

   Set actvixTest = New clsActivexEx

   'call the LoadForm method

   'and pass the values of both te option buttons

   'which tells the option that the user has choosen

   'and what drop-down box to enable

   actvixTest.LoadForm optNumbers.Value, optAlphabets.Value

End Sub

Private Sub CmdShowSelVal_Click()

   'function that gets the value selected in ActiveX Exe

   'and dispalys in a message box

   If actvixTest Is Nothing Then

      MsgBox "You have selected Nothing.", 64, "Selected Item in ActiveX Exe"

   Else

      MsgBox "You have selected " & actvixTest.getselectedchar & " in ActiveX Exe.", , "Selected Item in ActiveX Exe"

   End If

End Sub

Private Sub Form_Unload(Cancel As Integer)

   'on closing the form set the object actvixTest to point to nothing

   'thereby removing reference the class clsActivexEx in component Activex_ex

   Set actvixTest = Nothing

End Sub

References:

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