vkCreateInstance always geive me:"Attempted to read or write protected memory."

[heloonihao]

i really dont know waht's happend,i reference Vortice.Vulkan.SampleFramework/GraphicsDevice.cs,it should be work
'''
unsafe partial class Renderer
{
private VkInstance instance;

void initVulkan()
{
    VkApplicationInfo appInfo = new()
    {
        sType = VkStructureType.ApplicationInfo,
        applicationVersion = new VkVersion(1, 0, 0),
        engineVersion = new VkVersion(1, 0, 0),
        apiVersion = VkVersion.Version_1_2,
    };

    VkUtf8ReadOnlyString pApplicationName = Encoding.UTF8.GetBytes("Hello Triangle");
    VkUtf8ReadOnlyString pEngineName = "Vortice"u8;

    appInfo.pApplicationName = pApplicationName;
    appInfo.pEngineName = pEngineName;

    // Vulkan initialization code would go here
    VkInstanceCreateInfo createInfo = new()
    {
        sType = VkStructureType.InstanceCreateInfo,
        pNext = null,
        flags = 0,
        ppEnabledLayerNames = null,
        pApplicationInfo = &appInfo,
        enabledLayerCount = 0,
    };

    uint extensionCount = 0;
    string[]? extensions = SDL.VulkanGetInstanceExtensions(out extensionCount);
    if (extensions == null)
        throw new Exception("Failed to get Vulkan extensions from SDL.");
    List<VkUtf8String> instanceExtensions = [];
    for (int i = 0; i < extensionCount; i++)
    {
        ReadOnlySpan<byte> sdlExtSpan = Encoding.UTF8.GetBytes(extensions[i]);
        instanceExtensions.Add(sdlExtSpan);
    }

    using VkStringArray vkInstanceExtensions = new(instanceExtensions);
    createInfo.enabledExtensionCount = vkInstanceExtensions.Length;
    createInfo.ppEnabledExtensionNames = vkInstanceExtensions;


    VkResult result = Vulkan.vkCreateInstance(&createInfo, out this.instance);
    if (result != VkResult.Success)
    {
        throw new Exception("Failed to create Vulkan instance.");
    }
}

'''

[amerkoleci]

Hey,
Thanks because you're not initializing the library first, you need to call vkInitialize, example:

VkResult result = vkInitialize();
if (result != VkResult.Success)
     return false;```

[heloonihao]

my bad ,i didnt see other file in exmaple,thank you for patience