/// <summary>
/// Read basic information about an image with multiple frames/pages.
/// </summary>
/// <param name="fileName">The fully qualified name of the image file, or the relative image file name.</param>
/// <returns>A <see cref="IMagickImageInfo"/> iteration.</returns>
/// <exception cref="MagickException">Thrown when an error is raised by ImageMagick.</exception>
public static IEnumerable <IMagickImageInfo> ReadCollection(string fileName)
{
using (IMagickImageCollection images = new MagickImageCollection())
{
images.Ping(fileName);
foreach (MagickImage image in images)
{
MagickImageInfo info = new MagickImageInfo();
info.Initialize(image);
yield return(info);
}
}
}
/// <summary>
/// Read basic information about an image with multiple frames/pages.
/// </summary>
/// <param name="data">The byte array to read the information from.</param>
/// <param name="offset">The offset at which to begin reading data.</param>
/// <param name="count">The maximum number of bytes to read.</param>
/// <returns>A <see cref="IMagickImageInfo"/> iteration.</returns>
/// <exception cref="MagickException">Thrown when an error is raised by ImageMagick.</exception>
public static IEnumerable <IMagickImageInfo> ReadCollection(byte[] data, int offset, int count)
{
using (IMagickImageCollection images = new MagickImageCollection())
{
images.Ping(data, offset, count);
foreach (MagickImage image in images)
{
MagickImageInfo info = new MagickImageInfo();
info.Initialize(image);
yield return(info);
}
}
}
/// <summary>
/// Read basic information about an image with multiple frames/pages.
/// </summary>
/// <param name="data">The span of bytes to read the information from.</param>
/// <returns>A <see cref="IMagickImageInfo"/> iteration.</returns>
/// <exception cref="MagickException">Thrown when an error is raised by ImageMagick.</exception>
public static IReadOnlyCollection <IMagickImageInfo> ReadCollection(ReadOnlySpan <byte> data)
{
var result = new List <MagickImageInfo>();
using (var images = new MagickImageCollection())
{
images.Ping(data);
foreach (var image in images)
{
var info = new MagickImageInfo();
info.Initialize(image);
result.Add(info);
}
}
return(result);
}
