Please help! Sending mail from a COM add-in

D

Dewey

Please help!

I've been trying to send an email from within a COM addin in VB.net 2005,
but keep getting a very weird message:

'Unable to cast object of type 'System.__ComObject' to type
'Microsoft.Office.Interop.Outlook.ApplicationClass'.

I am trying to send from a form in a COM addin that I open from within
Outlook


Here's the sub I use:
-----------------------------
Private Sub SendMail( )

Dim myOlApp As Outlook._Application
'Dim myOlApp As Object
Dim MyItem As Outlook._MailItem
Dim luvRecipients As Outlook.Recipients
Dim luvRecipient As Outlook.Recipient
myOlApp = New Outlook.Application
'MyItem = myOlApp.CreateItem(OlItemType.olMailItem)
'MyItem.Display()
On Error Resume Next


'this is the body of the email
MyItem.Subject = "Image sending test"
MyItem.BodyFormat = Outlook.OlBodyFormat.olFormatHTML
MyItem.HTMLBody = "<HTML><DIV ALIGN=CENTER><IMG
src='\\Fil-nw04-10\hello.jpg></HTML>"

MyItem.Send()

End Sub
 
S

Sue Mosher [MVP-Outlook]

An Outlook add-in should never contain a statement like this:

myOlApp = New Outlook.Application

Instead, you need to be using the Outlook.Application object exposed by the application architecture. Are you using VSTO 2005 SE or IDTExtensibility2?
 
D

Dewey

Hi Sue

I'm using IDTExtensibility2. However, and excuse my beginner-ness, but I
did think to try passing that object, but it's created in the "OnConnection"
sub in another class. How can I pass it properly to the class with my form
that sends the email...or should I even be taking that route? (Sorry if this
makes no sense...I'm still a very VB6-oriented individual). My old fashoined
and sloppy sense would have me use a global variable, but I'm guessing that's
out here in .net land. Here's where the application object is first exposed
in IDTExtensibility2:



Public Sub OnConnection(ByVal application As Object, ByVal connectMode
As Extensibility.ext_ConnectMode, ByVal addInInst As Object, ByRef custom As
System.Array) Implements Extensibility.IDTExtensibility2.OnConnection

If (connectMode <> Extensibility.ext_ConnectMode.ext_cm_Startup)
Then _
Call OnStartupComplete(custom)

olApp = CType(application,
Microsoft.Office.Interop.Outlook.Application)

End Sub ( )



Thank you very much for your help
-Josh
 

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