public void RunOnce(IRenderGDI aPort)
{
int cxClient = fSize.cx;
int cyClient = fSize.cy;
aPort.SaveState();
aPort.Flush();
aPort.SetMappingMode(MappingModes.LOENGLISH);
aPort.UseDefaultPen();
aPort.UseDefaultBrush();
aPort.SetDefaultBrushColor(RGBColor.Blue);
aPort.SetDefaultPenColor(RGBColor.Yellow);
aPort.Flush();
aPort.Rectangle(cxClient / 8, cyClient / 8,
(7 * cxClient / 8), (7 * cyClient / 8));
Pen aPen = aPort.CreatePen(GDI32.PS_DASHDOTDOT, 1, RGBColor.Blue, Guid.NewGuid());
aPort.SetPen(aPen);
aPort.MoveTo(0, 0);
aPort.LineTo(cxClient, cyClient);
aPort.MoveTo(0, cyClient);
aPort.LineTo(cxClient, 0);
aPort.Ellipse(cxClient / 8, cyClient / 8,
(7 * cxClient / 8), (7 * cyClient / 8));
aPort.RoundRect(cxClient / 4, cyClient / 4,
3 * cxClient / 4, 3 * cyClient / 4,
cxClient / 4, cyClient / 4);
aPort.RestoreState();
}