private void OnDragOver(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.Copy;
string str = e.Data.GetData(typeof(String)) as String;
SizeF size;
Font f = new Font("Segoe UI", 10, FontStyle.Regular);
using (Bitmap tmpBmp = new Bitmap(1, 1))
using (Graphics g = Graphics.FromImage(tmpBmp))
size = g.MeasureString(str, f);
size.Height += 4;
size.Width += 4;
Bitmap bitmap = new Bitmap((int)Math.Ceiling(size.Width),
(int)Math.Ceiling(size.Height));
using (Graphics g = Graphics.FromImage(bitmap))
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
g.FillRectangle(SystemBrushes.Control, 0, 0, size.Width, size.Height);
g.DrawString(str, f, SystemBrushes.ControlText, 2, 2);
g.DrawRectangle(Pens.Black, 0, 0, size.Width - 1, size.Height - 1);
}
Cursor.Current = CursorUtils.CreateCursor(bitmap, 0, 0);
bitmap.Dispose();
f.Dispose();
}
