This code will take a stretched image created with the image control and save it's dimensions to a picturebox in bmp file format.
With Picture1
.Cls
.AutoRedraw = True
.BorderStyle = 0
.Height = Image1.Height 'set height to same as stretched imagebox
.Width = Image1.Width 'set width to same as stretched imagebox
.ScaleMode = Me.ScaleMode
End With
'Paint the stretched image to picturebox so it can be saved
Picture1.PaintPicture Image1.Picture, 0, 0, Picture1.Width, Picture1.Height
' Now save it as a bitmap
SavePicture Picture1.Image, "whatever.bmp"
Picture1.Cls 'clean-up