NatCamLegacy.cs

// Barcode detection built upon ZXing.NET 0.14.0.0
#define ZXING_API

#if ZXING_API
using ZXing;
#endif

private static BarcodeReader reader {...}

public static void DetectBarcode (Color32[] frame, int width, int height, MetadataCallback<IMetadata> callback) {
    if (frame == null || callback == null) return;
    #if ZXING_API
    reader.DecodeMultiple(frame, width, height).ForEach(result => callback(NatCamBarcode(result)));
    #endif
}

Hi Yusuf,

Your example is easy to use with NatCamLegacy.
How to get Color32[] from NatCam.PreviewBuffer on Android or IOS ?

Hi there. I just saw this comment. In NatCam 1.5, you can use the System.Runtime.InteropServices.Marshal API's to copy native data into a Color32[]. You pin the array with GCHandle, get its pointer, and use Marshal.Copy. In NatCam 1.6, we added a PreviewBuffer overload that takes in a Color32[].