SharpLibraw

C#.NET wrapper around Libraw. Wrapper class rawlib.cs includes C# signatures for all external native methods from libraw.dll.

Try the demo console application Program.cs which demonstrates key libraw features, like:

• initialize library
• open raw file
• export raw file to TIFF
• export thumbnail from raw file to JPEG
• load raw data, process it and export to Windows bitmap
• error handling

Demo project

To successfully build wrapper and demo application the following steps are needed:

• Download and install Visual Studio 2017 or 2019 Community Edition.
• Open LibRAWDemo.sln solution file and start build.
• The built executable LibRAWDemo.exe requires to have the included libraw.dll library in the same folder (should be there automatically)!
• Note: 64bit build of the project is required, since the included libraw.dll is also a 64bit library!

Sample usage of wrapper

using System;
using static LibRAWDemo.RAWLib;

class Program {
	static void Main(string[] args) {
		var handler = libraw_init(LibRaw_init_flags.LIBRAW_OPTIONS_NONE);
		libraw_set_output_tif(handler, LibRaw_output_formats.TIFF);
		libraw_set_no_auto_bright(handler, 0);
		var r = libraw_open_file(handler, @"C:\Temp\RawFile01.cr2");
		if (r != LibRaw_errors.LIBRAW_SUCCESS) {
			Console.WriteLine("Open file:       " + PtrToStringAnsi(libraw_strerror(r)));
			libraw_close(handler);
			return;
		}
		r = libraw_unpack(handler);
		r = libraw_dcraw_process(handler);
		r = libraw_dcraw_ppm_tiff_writer(handler, @"C:\Temp\Processed01.tiff");
		libraw_close(handler);
	}
}