Drag-all in a ListView, and how to constrain to a box

I have multi select on, and I can select as much items as I want, but how do I drag a lot at once?

Another question (listview), How do I make it so you can only drag in the boxed area of the Listview, by default, the user can keep dragging the item and the listview just gets scroll bars.

Here's a simple method for utilizing multi drag drop capability.
By using the OLE Drag/Drop functionality, the control will behave
like it would in any other Windows application.

VB Code:

Private Sub Form_Load()
  Dim lIndex As Long
  
  ' Generate 10 Items in the Listview
  With ListView1
    
    ' Turn on MultiSelect and OLEDragMode
    .MultiSelect = True
    .OLEDragMode = ccOLEDragAutomatic
    
    For lIndex = 1 To 10
      .ListItems.Add , "Key" & lIndex, "Item " & lIndex
    Next
    
  End With
  
  ' Turn on OLEDropMode for the Listbox
  List1.OLEDropMode = vbOLEDropManual
  
End Sub
 
Private Sub ListView1_OLESetData(Data As MSComctlLib.DataObject, DataFormat As Integer)
  
  ' Store a list of Item "Key" values as the Drag Data
  Dim oItem As ListItem
  Dim sList As String
  
  ' Step through each selected ListView Item
  ' Adding it's Unique Key to the Delimited List
  For Each oItem In ListView1.ListItems
    If oItem.Selected Then
      sList = sList & "," & oItem.Key
    End If
  Next
  
  ' Set the drag Data to the Delimited string, inserting
  ' The Listview name as the 1st element for identification.
  Call Data.SetData("ListView1" & sList, vbCFText)
End Sub
 
Private Sub List1_OLEDragDrop(Data As DataObject, Effect As Long, Button As Integer, Shift As Integer, X As Single, Y As Single)
  
  ' When something is dropped on the Listbox..
  Dim vItem As Variant
  Dim sSource As String
  Dim lIndex As Long
  
  ' Check to see if the Data is "Text"
  If Data.GetFormat(vbCFText) Then
    
    ' Extract the text and split it using a comma delimiter
    sSource = Data.GetData(vbCFText)
    vItem = Split(sSource, ",")
    
    ' If the 1st item in the delimited list is the name of the ListView
    ' Then it's a valid OLE Drag Source
    If vItem(0) <> "ListView1" Then Exit Sub
    
    ' Clear the Listbox
    List1.Clear
    
    ' Step through each item in the delimited list
    ' Using the Key value to locate the appropriate ListView Item
    ' And add it's text to the Listbox
    For lIndex = 1 To UBound(vItem)
      List1.AddItem ListView1.ListItems(vItem(lIndex)).Text
    Next
    
  End If
End Sub

The only drawback would be that you have limited control over
the drag icon, plus the data is also available to any other
OLE Drag/Drop enabled application.

You could implement something similar using the application Drag/Drop
functionality, however it would be a bit more work - depends on your needs.