The following test demonstrates two problems with wheel scrolling of TextAreas under Win32:

* Frame1 has both scrollbars enabled, but text such that only the horizontal scrollbar is necessary. The mouse wheel should scroll the text horizontally, but does nothing.

* Frame 2 only has the horizontal scrollbar enabled. Again, the mouse wheel should scroll the text horizontally, but it actually scrolls diagonally - BOTH HORIZONTALLY AND VERTICALLY.

Both of these behaviors are clearly wrong, and easily reproducible. They could be bugs in Windows itself. I don't believe these problem exist with Linux mousewheel.

import java.awt.*;

public class HorizTextAreaScroll {
    public static void main(String[] args) {
        Frame f = new Frame("Frame 1 - both");
        TextArea ta = new TextArea();
        ta.append("A very, very, very, very, very, very, very, very, very, very, very, very, very, long line of text\n");
        ta.append("Another very, very, very, very, very, very, very, very, very, very, very, very, very, long line of text\n");
        f.add(ta);
        f.setSize(200, 200);
        f.show();

        Frame f2 = new Frame("Frame 2 - horizontal only");
        TextArea ta2 = new TextArea("", 0, 0, TextArea.SCROLLBARS_HORIZONTAL_ONLY);
        for (int i = 0; i < 9; i++) {
            for (int j = 0; j < 50; j++) {
               ta2.append("" + i + "");
            }
           ta2.append("\n");
        }
        f2.add(ta2);
        f2.setSize(225, 225);
        f2.setLocation(100, 100);
        f2.show();
    }
}