Smrf.NodeXL.ExcelTemplate.TableImagePopulator.GetImageSizePt C# (CSharp) Method

    GetImageSizePt
    (
        Size oImageSizePx,
        Workbook oWorkbook
    )
    {
        Debug.Assert(oWorkbook != null);

        // There doesn't seem to be a direct way to get the screen resolution
        // from Excel or from .NET.  As a workaround, leveredge the fact that 
        // a new bitmap is given a resolution equal to the screen resolution.
        //
        // Because this method is called one time only, this workaround is
        // acceptable.

        Bitmap oBitmap = new Bitmap(10, 10);

        Single fPxPerInchX = oBitmap.HorizontalResolution;
        Single fPxPerInchY = oBitmap.VerticalResolution;

        oBitmap.Dispose();

        const Single PointsPerInch = 72;

        return ( new SizeF(
            (Single)oImageSizePx.Width * PointsPerInch / fPxPerInchX,
            (Single)oImageSizePx.Height * PointsPerInch / fPxPerInchY
            ) );
    }