ImageMagick.MagickImage<byte> seen as Non-generic Type

[jonnycolfax]

I am not able to compile code that all of my research tells me should compile. "new ImageMagick.MagickImage" is being treated as a non-generic type then failing with the byte argument. I have tried a lot of things to ensure that I don't have conflicts and incompatibilities.

Things I've done:

• New solution with a stripped down simple test app (C# Index model - Index.cshtml.cs - pasted below)
• Only package installed is Magick.NET-Q16-AnyCPU
• Reinstalled Magick.NET-Q16-AnyCPU
• Purged NuGet cache to ensure nothing carried over from another solution
• Removed the natively installed ImageMagick and associated PATH variable
• Reinstalled .NET SDK (versions 8 & 9)
• Verified no other versions of VS installed
• Uninstall and clean reinstall of VS2022 with .NET workloads

Thanks in advance for any help with this.

[code]

using ImageMagick;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;
using System;
using System.Drawing;

namespace ImageMagick_Test.Pages
{
public class IndexModel : PageModel
{
private readonly ILogger _logger;

    public IndexModel(ILogger<IndexModel> logger)
    {
        _logger = logger;
    }

    public void OnGet()
    {
        _logger.LogInformation("Index page visited.");

        // --- Magick.NET Test Code ---
        try
        {
            // Try a simple 1x1 px dummy image
            using (var testImage = new ImageMagick.MagickImage<byte>(1, 1))
            {
                // Optionally set a pixel color to confirm it works
                testImage.SetPixelColor(0, 0, new MagickColor(MagickColors.Red));

                // Optionally save it to a MemoryStream or file to verify
                // using (var memoryStream = new MemoryStream())
                // {
                //     testImage.Format = MagickFormat.Png;
                //     testImage.Write(memoryStream);
                //     // You now have the image bytes in memoryStream.ToArray()
                // }

                _logger.LogInformation("Successfully created a MagickImage<byte>.");
            }
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Error during Magick.NET test.");
            // If you get an error here at runtime (not compile time CS0308),
            // it might indicate native ImageMagick delegate issues.
        }
        // --- End Magick.NET Test Code ---
    }
}

}

[dlemstra]

It should be new ImageMagick.MagickImage instead of new ImageMagick.MagickImage<byte>?

[jonnycolfax]

@dlemstra , thanks for helping. Removing the explicit brings back some earlier errors where it is trying to perform a conversion from int to byte. This is just a small test app I made to reduce to these specific invocations but I have a larger app where I am trying to use ImageMagick to perform some 'detect orientation and reorient document' processing where this 'int to byte' conversion error was prevalent throughout the operations until attempting to explicitly set type to byte, where it eliminated the conversion error but brought the nagging non-generic type error.

[dlemstra]

You will need to change (1,1) into (1U, 1U) and SetPixelColor also requires an unsigned integer so that should be 0U.

[jonnycolfax]

@dlemstra changing that now changes the error to "cannot convert from uint to byte"

[dlemstra]

I don't know what you are doing inside your SetPixelColor extension method but I would expect that you also need to use an unsigned integer there. I really cannot help you with these kind of questions because I don't have the time to help you write your own code.

[jonnycolfax]

Sure, thanks for the initial response. I really had just stripped this down to barebones functionality to get past this one compilation. My actual app has a lot going on, so it wasn't my intention to have you write my app. I have tagged your first response as the answer and you can close this.