Set these propeties:
yourTooltip.OwnerDraw = true;
yourTooltip.BackColor = System.Drawing.Color.Red;
then on the Draw event use this :
private void yourTooltip_Draw(object sender, DrawToolTipEventArgs e)
{
e.DrawBackground();
e.DrawBorder();
e.DrawText();
}
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…