1. IronOCR
2. Troubleshooting
3. SEHException with non-AVX CPUs

Troubleshooting SEHException and AVX Support in IronOCR

Unhandled exception: System.Runtime.InteropServices.SEHException

This issue is commonly encountered on machines using older Xeon, Celeron, Pentium, or Atom processors that lack AVX support.

Support for non-AVX processors was added in IronOcr version 2022.8.7804, so please upgrade to a later release.

// Example: Checking AVX support programmatically in C#
using System;

class ProcessorFeatures
{
    // Main method to check AVX support
    static void Main()
    {
        // Check if the machine's processor supports AVX
        if (IsAvxSupported())
        {
            Console.WriteLine("AVX is supported.");
        }
        else
        {
            Console.WriteLine("AVX is not supported. Consider updating IronOcr to the latest version that supports non-AVX processors.");
        }
    }

    // Function to determine if AVX is supported
    static bool IsAvxSupported()
    {
        return System.Runtime.Intrinsics.X86.Avx.IsSupported;
    }
}

// Example: Checking AVX support programmatically in C#
using System;

class ProcessorFeatures
{
    // Main method to check AVX support
    static void Main()
    {
        // Check if the machine's processor supports AVX
        if (IsAvxSupported())
        {
            Console.WriteLine("AVX is supported.");
        }
        else
        {
            Console.WriteLine("AVX is not supported. Consider updating IronOcr to the latest version that supports non-AVX processors.");
        }
    }

    // Function to determine if AVX is supported
    static bool IsAvxSupported()
    {
        return System.Runtime.Intrinsics.X86.Avx.IsSupported;
    }
}

In this example code, we use the System.Runtime.Intrinsics.X86.Avx.IsSupported property to determine if the processor supports AVX instructions. If AVX is not supported, it's advisable to ensure you are using a version of IronOcr that includes support for non-AVX processors.