If you really want to (I have no idea why one would..*) you could try to use a Button
subclass, maybe like that:
public partial class TurnButton : Button
{
public TurnButton()
{
InitializeComponent();
}
int angle = 0; // current rotation
Point oMid; // original center
protected override void OnLayout(LayoutEventArgs levent)
{
base.OnLayout(levent);
if (oMid == Point.Empty) oMid = new Point(Left + Width / 2, Top + Height / 2);
}
protected override void OnPaint(PaintEventArgs pe)
{
int mx = this.Size.Width / 2;
int my = this.Size.Height / 2;
SizeF size = pe.Graphics.MeasureString(Text, Font);
string t_ = Text;
Text = "";
base.OnPaint(pe);
if (!this.DesignMode)
{
Text = t_; pe.Graphics.TranslateTransform(mx, my);
pe.Graphics.RotateTransform(angle);
pe.Graphics.TranslateTransform(-mx, -my);
pe.Graphics.DrawString(Text, Font, SystemBrushes.ControlText,
mx - (int)size.Width / 2, my - (int)size.Height / 2);
}
}
protected override void OnClick(EventArgs e)
{
this.Size = new Size(Height, Width);
this.Location = new Point(oMid.X - Width / 2, oMid.Y - Height / 2);
angle = (angle + 90) % 360;
Text = angle + "°";
base.OnClick(e);
}
}
(* I have no idea why I wrote that, either ;-)
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