private void OnCustomDraw(ref NMTBCUSTOMDRAW customDraw, ref Message m)
{
if (customDraw.hdr.dwDrawStage == Win32Declarations.CDDS_PREPAINT)
{
using (Graphics g = Graphics.FromHdc(customDraw.hdr.hdc))
{
Rectangle rect = Win32Declarations.RECTToRectangle(customDraw.hdr.rc);
g.FillRectangle(_backBrush, rect);
if (PaintBackground != null)
{
PaintBackground(this, new PaintEventArgs(g, rect));
}
}
m.Result = (IntPtr)Win32Declarations.CDRF_DODEFAULT;
}
}
