帮我调个程序

Question

bool bPictureBoxDragging = false;
        Point oPointClicked;
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
        {
            PictureBox p = (PictureBox)sender;
            pictureBox1.Cursor = Cursors.Hand;
            bPictureBoxDragging = true;
            oPointClicked = e.Location;
        }
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
        {
            if (bPictureBoxDragging)
            {
                DoubleBuffered = true;
                Point oMoveToPoint;
                oMoveToPoint = pictureBox1.PointToScreen(e.Location);
          oMoveToPoint.Offset(oPointClicked.X * -1, oPointClicked.Y * -1);
                pictureBox1.Location = oMoveToPoint;
            }
        }        private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
        {
            bPictureBoxDragging = false;
            pictureBox1.Cursor = Cursors.Arrow;
        } 大家帮我看看，为什么鼠标按下移动的时候图片会跳一下？？怎么解决？

Answer 1

我用的vs2003，怎么MouseEventArgs e，没有Location这个属性，难道楼主用的2005?
pictureBox1.Location = oMoveToPoint//有这句话，图片的位置当然会随鼠标变化了

Answer 2

你这样来做试试看:
Point lastPoint = Point.Empty;
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
{
PictureBox box = sender as PictureBox;
if (box.Capture)
{
Point loc = box.Location;
loc.Offset(e.Location.X - lastPoint.X, e.Location.Y - lastPoint.Y);
box.Location = loc;
}
}private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
lastPoint = e.Location;
}

Answer 3

oMoveToPoint.Offset(oPointClicked.X * -1, oPointClicked.Y * -1);
这句话有问题，改成楼上的方法，应该对了

Answer 4

是2005.
问题解决 谢谢hbxtlhx(平民百姓)