''' <summary>
''' Opens Canon CR3-file, gets RAW-image from CR3-file and saves image to a PNG-file.
''' </summary>
''' <param name="cr3Filename">The name of CR3-file.</param>
Public Sub GetAndSaveCr3RawImage(cr3Filename As String)
    ' set path to the "libraw.dll" file - VintaSoft Imaging .NET SDK uses LibRaw for parsing Canon CR3-file
    Vintasoft.Imaging.RawCodec.LibRawHelper.LibRawPath = System.IO.Path.Combine(System.IO.Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "libraw.dll")

    ' open CR3-file stream
    Using fs As New System.IO.FileStream(cr3Filename, System.IO.FileMode.Open, System.IO.FileAccess.Read)
        ' open CR3-file
        Dim rawImageFile As New Vintasoft.Imaging.Codecs.ImageFiles.Raw.RawImageFile(fs)
        ' get CR3-page
        Dim cr3Page As Vintasoft.Imaging.Codecs.ImageFiles.Raw.Cr3Page = TryCast(rawImageFile.Page, Vintasoft.Imaging.Codecs.ImageFiles.Raw.Cr3Page)
        ' if CR3-page is found in RAW-file
        If cr3Page IsNot Nothing Then
            ' get RAW-image as 48-bpp RGB image
            Using rawImage As Vintasoft.Imaging.VintasoftImage = cr3Page.GetImage()
                ' save 48-bpp RGB image to a PNG file
                rawImage.Save(cr3Filename & ".png")
            End Using
        End If
    End Using
End Sub

/// <summary>
/// Opens Canon CR3-file, gets RAW-image from CR3-file and saves image to a PNG-file.
/// </summary>
/// <param name="cr3Filename">The name of CR3-file.</param>
public void GetAndSaveCr3RawImage(string cr3Filename)
{
    // set path to the "libraw.dll" file - VintaSoft Imaging .NET SDK uses LibRaw for parsing Canon CR3-file
    Vintasoft.Imaging.RawCodec.LibRawHelper.LibRawPath =
        System.IO.Path.Combine(System.IO.Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "libraw.dll");

    // open CR3-file stream
    using (System.IO.FileStream fs = new System.IO.FileStream(cr3Filename, System.IO.FileMode.Open, System.IO.FileAccess.Read))
    {
        // open CR3-file
        Vintasoft.Imaging.Codecs.ImageFiles.Raw.RawImageFile rawImageFile =
            new Vintasoft.Imaging.Codecs.ImageFiles.Raw.RawImageFile(fs);
        // get CR3-page
        Vintasoft.Imaging.Codecs.ImageFiles.Raw.Cr3Page cr3Page =
            rawImageFile.Page as Vintasoft.Imaging.Codecs.ImageFiles.Raw.Cr3Page;
        // if CR3-page is found in RAW-file
        if (cr3Page != null)
        {
            // get RAW-image as 48-bpp RGB image
            using (Vintasoft.Imaging.VintasoftImage rawImage = cr3Page.GetImage())
            {
                // save 48-bpp RGB image to a PNG file
                rawImage.Save(cr3Filename + ".png");
            }
        }
    }
}