public GdiPlusCanvasViewport(RootGraphic rootgfx,
Size viewportSize, int cachedPageNum)
: base(rootgfx, viewportSize, cachedPageNum)
{
quadPages = new QuadPages( cachedPageNum, viewportSize.Width, viewportSize.Height * 2);
this.CalculateCanvasPages();
}
//static int dbugCount = 0;
protected override void OnClosing()
{
if (quadPages != null)
{
quadPages.Dispose();
quadPages = null;
}
base.OnClosing();
}