/// <summary>
/// Called when the size has changed.
/// </summary>
void MySizeChanged(object sender, SizeChangedEventArgs e)
{
Point dpi = WFUtils.GetResolution(this);
dpiScaleX = dpi.X / 96.0;
dpiScaleY = dpi.Y / 96.0;
int width = (int)(ActualWidth * dpiScaleX);
int height = (int)(ActualHeight * dpiScaleY);
bitmap = new WriteableBitmap(width, height, dpi.X, dpi.Y, PixelFormats.Pbgra32, null);
image.Source = bitmap;
pixelMapper.Init(this);
Redraw();
}
