/// <summary>
/// Converts the specified html documents to a single image.
/// </summary>
/// <param name="htmlDocuments"></param>
/// <param name="pdfConverterLicenseKey"></param>
/// <returns></returns>
public static System.Drawing.Image ConvertHtmlToImage(IEnumerable <string> htmlDocuments, string pdfConverterLicenseKey)
{
var imgConverter = new ImgConverter();
if (String.IsNullOrEmpty(pdfConverterLicenseKey) == false)
{
imgConverter.LicenseKey = pdfConverterLicenseKey;
}
System.Drawing.Image img = null;
foreach (var htmlDocument in htmlDocuments)
{
if (img == null)
{
img = imgConverter.GetImageFromHtmlString(htmlDocument, ImageFormat.Png);
}
else
{
using (System.Drawing.Image tempImage = imgConverter.GetImageFromHtmlString(htmlDocument, ImageFormat.Png))
{
int newImageHeight = img.Height + tempImage.Height;
int newImageWidth = img.Width > tempImage.Width ? img.Width : tempImage.Width;
Bitmap newBitmap = new Bitmap(newImageWidth, newImageHeight);
using (Graphics newImageGraphics = Graphics.FromImage(newBitmap))
{
newImageGraphics.DrawImageUnscaled(img, 0, 0);
newImageGraphics.DrawImageUnscaled(tempImage, 0, newImageHeight);
}
img.Dispose();
img = newBitmap;
}
}
}
if (img != null)
{
return(img);
}
throw new InvalidOperationException("No image object was created.");
}