static Bitmap _Capture(List <POINT> outline, wnd w = default, bool printWindow = false)
{
int n = outline?.Count ?? 0;
if (n == 0)
{
throw new ArgumentException();
}
if (n == 1)
{
return(_Capture(new RECT(outline[0].x, outline[0].y, 1, 1)));
}
using var path = _CreatePath(outline);
RECT r = RECT.From(path.GetBounds(), false);
if (r.NoArea)
{
path.Widen(Pens.Black); //will be transparent, but no exception. Difficult to make non-transparent line.
r = RECT.From(path.GetBounds(), false);
}
return(_Capture(r, w, printWindow, path));
}