private System.Drawing.Image CreateMetafile(string suffix)
{
string extension = Path.GetExtension(FileName);
string fileName = Path.ChangeExtension(FileName, suffix + extension);
System.Drawing.Image image;
using (Bitmap bmp = new Bitmap(1, 1))
using (Graphics g = Graphics.FromImage(bmp))
{
IntPtr hdc = g.GetHdc();
if (suffix == "")
{
image = new Metafile(Stream, hdc);
}
else
{
image = new Metafile(fileName, hdc);
if (!GeneratedFiles.Contains(fileName))
{
GeneratedFiles.Add(fileName);
}
}
g.ReleaseHdc(hdc);
}
return(image);
}
