VB 6 Довести до конца код выделения изображения

Private Sub Picture1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
Picture1.DrawMode = 6
'Draw style to dots
Picture1.DrawStyle = 2
'Check if a Select Box is already drawn
If X2 > 0 Then Picture1.Line (X1, Y1)-(X2, Y2), , B
'Reset all the values to the current point
X1 = X
Y1 = Y
X2 = X
Y2 = Y
x1pos.Text = X1
x2pos.Text = X2
y1pos.Text = Y1
y2pos.Text = Y2
End Sub
 
Private Sub Picture1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
'Ïðîâåðèòü, íàæàòà ëè ëåâàÿ êíîïêà ìûøè
If Button = 1 Then
Picture1.Line (X1, Y1)-(X2, Y2), , B
X2 = X
Y2 = Y
Text2.Text = X
Text3.Text = Y
Picture1.Line (X1, Y1)-(X, Y), , B
End If
End Sub

Dim lw As Long, lh As Long
    If w = 0 Or h = 0 Then Exit Sub
    pic.Visible = False
    SelDraw w, h
    lw = pic.Width: lh = pic.Height
    pic.Width = ncw + w: pic.Height = nch + h: pic.Cls
    pic.PaintPicture pic.Picture, 0, 0, w, h, sx, sy, w, h
    SavePicture pic.Image, "C:\test.bmp"
    pic.Width = lw: pic.Height = lh
    pic.Cls: SelDraw w, h
    pic.Visible = True

Option Explicit
 
Dim sx As Long, sy As Long, w As Long, h As Long, ncw As Long, nch As Long, b As Boolean
 
Private Sub cmdSave_Click()
    Dim lw As Long, lh As Long
    If w = 0 Or h = 0 Then Exit Sub
    pic.Visible = False
    SelDraw w, h
    lw = pic.Width: lh = pic.Height
    pic.Width = ncw + w: pic.Height = nch + h: pic.Cls
    pic.PaintPicture pic.Picture, 0, 0, widthbox.Text, heightbox.Text, sxbox.Text, sybox.Text, widthbox.Text, heightbox.Text
    SavePicture pic.Image, "C:\golum\test.bmp"
    pic.Width = lw: pic.Height = lh
    pic.Cls: SelDraw widthbox.Text, heightbox.Text
    pic.Visible = True
End Sub
 
Private Sub Form_Load()
    ncw = pic.Width - pic.ScaleWidth: nch = pic.Height - pic.ScaleHeight
End Sub
Private Sub pic_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    If w > 0 And h > 0 Then SelDraw w, h
    sx = X: sy = Y: w = 0: h = 0: b = True
    widthbox.Text = w
        heightbox.Text = h
        sxbox.Text = sx
        sybox.Text = sy
End Sub
Private Sub pic_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    If b Then
        Dim dw As Long, dh As Long
        dw = X - sx: dh = Y - sy
        If dw = w And dh = h Then Exit Sub
        SelDraw dw, dh
        SelDraw w, h
        w = dw: h = dh
        widthbox.Text = w
        heightbox.Text = h
        sxbox.Text = sx
        sybox.Text = sy
    End If
End Sub
Private Sub pic_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single)
    b = False
    If w < 0 Then w = -w: sx = sx - w
    If h < 0 Then h = -h: sy = sy - h
End Sub
Private Sub SelDraw(ByVal dw As Long, ByVal dh As Long)
    pic.DrawMode = vbXorPen
    pic.Line (sx, sy)-Step(dw, dh), , B
    pic.DrawMode = vbCopyPen
End Sub