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POHow to save BitmapImage / WriteableBitmap using SaveFileDialog in Silverlight 3.0?
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copied!<p>How can a WriteableBitmap from Silverlight be Saved onto the File System, I am unsure what to do with the FileStream to make this work, it can be in Bitmap, PNG, Jpeg format etc, as long as a commercial library is not required.<br> Is it possible to do this?</p> <p>Here is my call to SaveDialog, below:</p> <pre><code> Dim SaveDialog As New SaveFileDialog If SaveDialog.ShowDialog Then Try Using FileStream As Stream = SaveDialog.OpenFile ' Save Image File Code Here End Using Catch ex As Exception End Try End If </code></pre> <p><strong>Edit</strong></p> <p>Added mention of WritableBitmap as this is what my XAML is writing to, I just need to save it, there is a WriteableBitmap.Pixels property which is a 1-dimensional array of integer pixels, can this be put into a filestream, and if so, how?</p> <hr> <p>Here is some example code I have that writes the Pixel Stream to a File, however this works it does not "bitmapify" the data and the resulting output is useless but it is writing my image stream, I just need to know how to mark-it-up so that it is a Bitmap file (or anything else). I have found the JPEG and PNG examples before, but none of them explain well how they work, I may have to use the PNGEncoding method as this is the only one that will integrate into my codebase. But is there a simple BMP file version out there?</p> <pre><code> Dim Image As Imaging.WriteableBitmap = _Style.Image Dim Area As Integer = Image.PixelWidth * Image.PixelHeight For Raster As Integer = 0 To Area - 1 Dim Pixel As Integer = Image.Pixels(Raster) Dim Bytes() = BitConverter.GetBytes(Pixel And &HFF) FileStream.Write(Bytes, 0, 4) Next </code></pre>

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