public PngImage(
	Stream stream
)

Public Sub New ( 
	stream As Stream
)

public:
PngImage(
	Stream^ stream
)

new : 
        stream : Stream -> PngImage

[C#]

string dir = "c:\\temp\\";

// Load a PNG image from a file stream.
using (System.IO.Stream stream = System.IO.File.OpenRead(dir + "sample.png"))
{
    using (Aspose.Imaging.FileFormats.Png.PngImage pngImage = new Aspose.Imaging.FileFormats.Png.PngImage(stream))
    {
        // Transform the image to grayscale representation
        pngImage.Grayscale();

        // Save to a file.
        pngImage.Save(dir + "sample.grayscale.png");
    }
}