10/02/05 18:21:50
>>60
画像を親ピクチャーのImageではなくBackGroundImageに設定する。親ピクチャーボックスをparentPBとすると
別解その２
Point mPos = Point.Empty;
Rectangle vtb = new Rectangle(0, 0, 100, 20); // 仮想テキストボックス
private void parentPB_MouseDown(object sender, MouseEventArgs e)
{
if (!vtb.Contains(e.Location)) return;
mPos = e.Location;
mPos.Offset(-vtb.Location.X, -vtb.Location.Y);
Point p = this.PointToScreen(parentPB.Location);
p.Offset(e.Location.X - vtb.Location.X, e.Location.Y - vtb.Location.Y);
Cursor.Clip = new Rectangle(p, new Size(parentPB.Width - vtb.Width, parentPB.Height - vtb.Height));
}
private void parentPB_MouseMove(object sender, MouseEventArgs e)
{
if (mPos == Point.Empty) return;
vtb.X = e.X - mPos.X;
vtb.Y = e.Y - mPos.Y;
parentPB.Invalidate();
}
private void parentPB_MouseUp(object sender, MouseEventArgs e)
{
Cursor.Clip = Rectangle.Empty;
mPos = Point.Empty;
}
private void parentPB_Paint(object sender, PaintEventArgs e)
{
e.Graphics.DrawRectangle(Pens.Yellow, Rectangle.Round(vtb));
e.Graphics.DrawString(textBox1.Text, textBox1.Font, new SolidBrush(textBox1.ForeColor), vtb.Location);
}