Alternatives to automatically images + HTML signatures with body text in emails - vba

Question

I've done a fair bit of research on this topic and I've come to the conclusion that what I'm looking to do is just simply not possible. No matter what method is used from the Outlook object library; it seems that any signature that is automatically populated by functions like .display and .getInspector will always be wiped when .body, .HTMLBody, or .RTFBody are also called afterwards. I've gotten a lot of great advice such as below but it seems like any variation of .body will wipe the signature no matter how the signature is populated.
Dim OutApp As Object
Dim OutMail As Object
Dim signature As String
Set OutApp = CreateObject("Outlook.Application")
OutApp.Session.Logon
Set OutMail = OutApp.CreateItem(0)
On Error Resume Next
With OutMail
.BodyFormat = olFormatHTML
.HTMLBody = "f"
.Display
End With
signature = OutMail.HTMLBody
I've been thinking lately, would it be possible to take the .htm signature file located in \AppData\Roaming\Microsoft\Signature and render that into the email itself by including it in .body? Does anyone know of any alternatives to using .display and .getInspector to input a signature?
Edit 2:
Dim OutApp As Object
Dim OutMail As Object
Dim signature As String
Set OutApp = CreateObject("Outlook.Application")
OutApp.Session.Logon
Set OutMail = OutApp.CreateItem(0)
On Error Resume Next
OutMail.Display
signature = OutMail.HTMLBody
With OutMail
.HTMLBody = "fdA" & signature
'.BodyFormat = olFormatHTML
End With

Answer 1

The body is wiped out because your code explicitly wipes it out. Or, in your particular case, Outlook never applies the signature because it sees that the HTML body was previously set.
Outlook will add the signature when you call Display or GetInspector. In your case, call Display first (at this point the signature is added), then read the HTMLBody property (it will now contain the signature). Merge it with your html body (note that two HTML strings cannot be simply concatenated, you must merge them), then set the HTMLBody property back.