If you want to test if Outlook is open with VBA code it is not so difficult as the example below shows:
Sub TestOutlookIsOpen() Dim oOutlook As Object On Error Resume Next Set oOutlook = GetObject(, "Outlook.Application") On Error GoTo 0 If oOutlook Is Nothing Then MsgBox "Outlook is not open, open Outlook and try again" Else 'Call NameOfYourMailMacro End If End Sub
But if you want to open it when Outlook is closed with VBA it is not so difficult if you use Early Binding but not as easy if you use Late Binding in order for your code to run on different versions without issues. For example, this code below will work to open Word if it is closed and make it visible using Late binding.
Sub TestMe() Dim word As Object Dim doc As Object On Error Resume Next Set word = GetObject(, "word.application") 'gives error 429 if Word is not open If Err.Number = 429 Then Err.Clear Set word = CreateObject("Word.Application") End If If Not word Is Nothing Then word.Visible = True 'Set doc = word.Documents.Add Else MsgBox "Unable to retrieve Word." End If End SubBut you can’t use similar code with Outlook due to how Outlook opens which is quite different from other Office products. Sometimes it is important to know that Outlook is open, for example to be sure that your mails created with VBA code are sent and not waiting in your outbox.
Copy the code below into a new module of your workbook. To test the code, run the macro named MyMacroThatUseOutlook below the two functions. If everything works correctly, the Outlook will open minimized. If you prefer to open Outlook maximized, change the parameter WindowState’s default from olMinimized to olMaximized like this Set OutApp = OutlookApp(olMaximized)
#Const LateBind = True Const olMinimized As Long = 1 Const olMaximized As Long = 2 Const olFolderInbox As Long = 6 #If LateBind Then Public Function OutlookApp( _ Optional WindowState As Long = olMinimized, _ Optional ReleaseIt As Boolean = False _ ) As Object Static o As Object #Else Public Function OutlookApp( _ Optional WindowState As Outlook.OlWindowState = olMinimized, _ Optional ReleaseIt As Boolean _ ) As Outlook.Application Static o As Outlook.Application #End If On Error GoTo ErrHandler Select Case True Case o Is Nothing, Len(o.Name) = 0 Set o = GetObject(, "Outlook.Application") If o.Explorers.Count = 0 Then InitOutlook: 'Open inbox to prevent errors with security prompts o.Session.GetDefaultFolder(olFolderInbox).Display o.ActiveExplorer.WindowState = WindowState End If Case ReleaseIt Set o = Nothing End Select Set OutlookApp = o ExitProc: Exit Function ErrHandler: Select Case Err.Number Case -2147352567 'User cancelled setup, silently exit Set o = Nothing Case 429, 462 Set o = GetOutlookApp() If o Is Nothing Then Err.Raise 429, "OutlookApp", "Outlook Application does not appear to be installed." Else Resume InitOutlook End If Case Else MsgBox "Error " & Err.Number & ": " & Err.Description, vbCritical, "Unexpected error" End Select Resume ExitProc Resume End Function #If LateBind Then Private Function GetOutlookApp() As Object #Else Private Function GetOutlookApp() As Outlook.Application #End If On Error GoTo ErrHandler Set GetOutlookApp = CreateObject("Outlook.Application") ExitProc: Exit Function ErrHandler: Select Case Err.Number Case Else 'Do not raise any errors Set GetOutlookApp = Nothing End Select Resume ExitProc Resume End Function Sub MyMacroThatUseOutlook() Dim OutApp As Object Set OutApp = OutlookApp() 'Automate OutApp as desired End Sub
When you want to automate Outlook in your macros and you don’t want to worry about whether Outlook is open already, you can use code like in the macro MyMacroThatUseOutlook above:
For more Outlook mail examples where you can use the code from this page visit my site : http://www.rondebruin.nl/win/s1/outlook/mail.htm