You can form a button click next to the drop-down combo box. Here is an example- of course, in this example, I just pick a word document, not a form. But you get the general idea
Code:
Public Function PrintItem(strDocPath As String)
'if no path is passed to function, exit
If IsNull(strDocPath) or strDocPath = "" Then
Exit Function
End If
Dim dbs As Database
Dim objWord As Object
Dim PrintResponse
Set dbs = CurrentDb
'create reference to Word Object
Set objWord = CreateObject("Word.Application")
PrintResponse = MsgBox("Print this document?", vbYesNo)
If PrintResponse = vbYes Then
objWord.ActiveDocument.PrintOut Background:=False
End If
'release all objects
Set objWord = Nothing
Set dbs = Nothing
End Function
Private Sub cmdPrint_Click()
If Not Len(combobox.Value) = 0 Then
PrintItem(combobox.Value)
Else
MsgBox "Select Form"
End If
End Sub