Saving Image to disk using Screenshot.Net library

Question

hope everyone is doing well.

I am using the Screenshot.Net library to take an area drawn screenshots of a screen from a WPF application. The problem I am having is saving the screenshot to a directory within the project folder.

This is how the library currently saves the Image however it is not being stored to any directory:

public static BitmapSource ToBitmapSource(this Bitmap bitmap)
    {
        using (var stream = new MemoryStream())
        {
            bitmap.Save(stream, ImageFormat.Png);
            var bitmapImage = new BitmapImage();
            bitmapImage.BeginInit();
            bitmapImage.StreamSource = new MemoryStream(stream.ToArray());
            bitmapImage.EndInit();
            bitmapImage.Freeze();

            return bitmapImage;
        }
    }

I have tried specifying a directory save path but have so far been unable to get it to work. Any advice on how to proceed would be appreciated.

well - you're writing it to a memorystream.. have you tried writing it to a filestream instead? — Franz Gleichmann, Jan 11 '21 at 15:12
I haven't tried that yet but let me give it a shot now. Apologies if this was a silly post still fairly new to the .net framework. — Storm Rhoda, Jan 11 '21 at 15:16
You already have the bitmap in a MemoryStream, Just call `File.WriteAllBytes(path, stream.ToArray());` — Clemens, Jan 11 '21 at 17:12
@Clemens when I tired that I got an error message saying cannot implicitly convert void to System.Io.Stream. — Storm Rhoda, Jan 12 '21 at 11:09

score 1 · Accepted Answer · edited Jan 11 '21 at 17:19

1

First, get a byte[] from the MemoryStream

stream.Position = 0;
byte[] imgBytes = stream.ToArray();

Then, use built-in libs for writing.

string basePath="<Your path without File name>";
string fileName="<Your image name with extension>";
System.IO.File.WriteAllBytes(Path.Combine(basePath, fileName), imgBytes);

edited Jan 11 '21 at 17:19

Clemens

123,504
12
155
268

answered Jan 11 '21 at 15:35

Udhaya

335
3
12

@StormRhoda have you refer https://stackoverflow.com/questions/7350679/convert-a-bitmap-into-a-byte-array – Udhaya Jan 11 '21 at 16:43
Thanks, @Udhayarajan this worked. – Storm Rhoda Jan 11 '21 at 16:44

Saving Image to disk using Screenshot.Net library

1 Answers1