protected virtual void OnCustomPaintForeground(MetroPaintEventArgs e)
{
if (GetStyle(ControlStyles.UserPaint) && CustomPaintForeground != null)
{
CustomPaintForeground(this, e);
}
}
protected virtual void OnCustomPaintBackground(MetroPaintEventArgs e)
{
if (base.GetStyle(ControlStyles.UserPaint) && this.CustomPaintBackground != null)
{
this.CustomPaintBackground(this, e);
}
}
protected virtual void OnCustomPaint(MetroPaintEventArgs e)
{
if (GetStyle(ControlStyles.UserPaint))
{
CustomPaint?.Invoke(this, e);
}
}
protected virtual void OnCustomPaint(MetroPaintEventArgs e)
{
Rectangle rect = this.ClientRectangle;
rect.Inflate(-1, -1);
GraphicsPath path = new GraphicsPath();
e.Graphics.FillEllipse(new SolidBrush(Color.Transparent), rect);
path.AddEllipse(rect);
this.Region = new Region(path);
path.Dispose();
//方案二：美观性较差
//Rectangle rect = this.ClientRectangle;
//rect.Inflate(-1, -1);
//Pen pen = new Pen(Color.Gray);
//e.Graphics.DrawEllipse(pen, rect);
//pen.Dispose();
}