This is a class library for .NET Framework 4. and .NET Core on Windows OS.
This library allows you to extract first .ico file from Win32 resource in PE format file (.exe, .dll) to a stream.
This library also works well on Microsoft Azure App Services (but Windows Operating System only).
Notice: This is a .NET Standard 2.0 class library, but this doesn't work on Linux and macOS, because this library includes many Win32 API calls via P/Invoke.
You can install this library via the NuGet package manager console.
PM> Install-Package IconExtractor
You can also install this library via dotnet CLI.
$ dotnet add package IconExtractorYou can extract only one .ico file from PE format file (.exe, .dll) into stream by Extract1stIconTo static method live in Toolbelt.Drawing.IconExtractor class.
using Toolbelt.Drawing;
...
var source = @"C:\Foo\Bar.exe";
using var s = File.Create(@"C:\Foo\Bar.ico");
IconExtractor.Extract1stIconTo(source, s);