saving image from inkcanvas

Hello
I am trying to create an image file from the inkcanvas.
I have got the following code from some blog but the error comes that
BitmapVisualManager is inaccessible due to its protection level.

I dont know how the same code works in others people.

RenderTargetBitmap rtb = new
RenderTargetBitmap((int)inkCanvas1.Width, (int)inkCanvas1.Height, 96d,
96d,PixelFormats.Default);
BitmapVisualManager bvm = new BitmapVisualManager(rtb);

// draw the ink strokes onto the bitmap
DrawingVisual dvInk = new DrawingVisual();
DrawingContext dcInk = dvInk.RenderOpen();
dcInk.DrawRectangle(inkCanvas1.Background, null, new
Rect(0d, 0d,inkCanvas1.Width, inkCanvas1.Height));
foreach (Stroke stroke in inkCanvas1.Strokes)
{
stroke.Draw(dcInk);
}
dcInk.Close();
//bvm.Render(dvInk);

//save bitmap to file
FileStream fs = File.Open(@"c:\test.bmp",
FileMode.OpenOrCreate);
System.Windows.Media.Imaging.JpegBitmapEncoder encoder1 =
new JpegBitmapEncoder();
encoder1.Frames.Add(BitmapFrame.Create(rtb));
encoder1.Save(fs);


// BitmapEncoderBmp encoder = new BitmapEncoderBmp();
// encoder.Frames.Add(BitmapFrame.Create(rtb));
// encoder.Save(fs);
fs.Close();

BitmapVisualManager is internal now -- all you need is
RenderTargetBitmap.

Here's a snippet of code I pulled from an application which works on
Feb CTP... you shouldn't need to draw each Stroke into the DC, just
send the whole InkCanvas to the RenderTargetBitmap.Render.

HTH,
-S

// Must extend canvas bounds to cover whole grid.
_inkCanvas1.Width = _grid1.ActualWidth;
_inkCanvas1.Height = _grid1.ActualHeight;

UpdateLayout();

// Render visual to bitmap, and save to clipboard.
RenderTargetBitmap rtb = new RenderTargetBitmap(
(int)_bkgrndImage.Width, (int)_bkgrndImage.Height,
96d, 96d, PixelFormats.Default);

rtb.Render(_inkCanvas1);

// Crop to strokes' bounds, plus some margin (but contstained to
InkCanvas extent).
Rect bounds = _inkCanvas1.Strokes.GetBounds();
bounds.Inflate(20, 20);
bounds.Intersect(new Rect(0d, 0d, _inkCanvas1.ActualWidth,
_inkCanvas1.ActualHeight));

Int32Rect boundsI = new Int32Rect((int)bounds.X, (int)bounds.Y,
(int)bounds.Width, (int)bounds.Height);
CroppedBitmap bmp = new CroppedBitmap(rtb, boundsI);

// Push resulting image to clipboard.
Clipboard.SetImage(bmp);


madhur wrote:
> Hello
> I am trying to create an image file from the inkcanvas.
> I have got the following code from some blog but the error comes that
> BitmapVisualManager is inaccessible due to its protection level.
>
> I dont know how the same code works in others people.
>
> RenderTargetBitmap rtb = new
> RenderTargetBitmap((int)inkCanvas1.Width, (int)inkCanvas1.Height, 96d,
> 96d,PixelFormats.Default);
> BitmapVisualManager bvm = new BitmapVisualManager(rtb);
>
> // draw the ink strokes onto the bitmap
> DrawingVisual dvInk = new DrawingVisual();
> DrawingContext dcInk = dvInk.RenderOpen();
> dcInk.DrawRectangle(inkCanvas1.Background, null, new
> Rect(0d, 0d,inkCanvas1.Width, inkCanvas1.Height));
> foreach (Stroke stroke in inkCanvas1.Strokes)
> {
> stroke.Draw(dcInk);
> }
> dcInk.Close();
> //bvm.Render(dvInk);
>
> //save bitmap to file
> FileStream fs = File.Open(@"c:\test.bmp",
> FileMode.OpenOrCreate);
> System.Windows.Media.Imaging.JpegBitmapEncoder encoder1 =
> new JpegBitmapEncoder();
> encoder1.Frames.Add(BitmapFrame.Create(rtb));
> encoder1.Save(fs);
>
>
> // BitmapEncoderBmp encoder = new BitmapEncoderBmp();
> // encoder.Frames.Add(BitmapFrame.Create(rtb));
> // encoder.Save(fs);
> fs.Close();