Comment 24 for bug 370818

TEST CASE:
Obviously the test is significant only on systems affected by the problem. So If you cannot define the scan rectangle in the preview by dragging your mouse then
1. Install the fix
2. Start xsane
3. Open the preview window (unless it's open already)
4. Left-press your mouse in the preview window and drag your mouse; a dashed rectangle should appear between your mouse pointer and the spot where you clicked.
5. Release the left mouse button, press the middle or right mouse button within the dashed rectangle and drag your mouse; the dashed rectangle should follow it (as far as the preview window permits).