VB6 Code to drag & drop objects form our app to external apps.

Assume you want to drag and drop a jpeg picture.
1. Create a form
2. place a image control.
3. Place a nice icon insed of loading the whole picture.

Private Sub Image1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    If Button = vbLeftButton Then Image1.OLEDrag
End Sub
Private Sub Image1_OLEGiveFeedback(Effect As Long, DefaultCursors As Boolean) ' asking
    Effect = vbDropEffectCopy 'a copy is droped of the data
End Sub
Private Sub Image1_OLEStartDrag(Data As DataObject, AllowedEffects As Long)
    AllowedEffects = vbDropEffectCopy
    ' if dragging the filename, then do this
    Me.Image1.Tag = "c:\test.jpg"
    Data.Files.Add Image1.Tag
    Data.SetData , vbCFFiles
    ' if dragging the image, then do this
    'Data.SetData LoadPicture(Image1.Tag), vbCFBitmap
    ' note that you can actually do both and the target will pick which it wants
End Sub
Private Sub Image1_OLECompleteDrag(Effect As Long)
' do whatever you need to do after data was accepted/rejected, if anything
End Sub

* This is a sample code posted by lavolp inresponse to my drag & drop question and found that really useful.