This example draws a transparent line across the width of an image.
Private Sub cmdDrawLine_Click()
Dim XWidth As OLE_XSIZE_PIXELS
'Determine the width of the image -- this will
'work even if the image is scaled up or down
XWidth = ImgEdit1.ImageScaleWidth
'line will be green, transparent, 10 pixels wide
ImgEdit1.AnnotationLineColor = vbGreen
ImgEdit1.AnnotationLineStyle = wiTransparent '0
ImgEdit1.AnnotationLineWidth = 10
ImgEdit1.AnnotationType = wiStraightLine '1
'Draw the line
'left position = 0 (start at left side)
'top position = 100 pixels from top of page
'width of line = width of image as it is displayed
'height of line = 0 (line will be horizontal)
ImgEdit1.Draw 0, 100, XWidth, 0
End Sub