vkCreateDebugUtilsMessengerEXT

A debug messenger triggers a debug callback with a debug message when an event of interest occurs. To create a debug messenger which will trigger a debug callback, call:

VkResult vkCreateDebugUtilsMessengerEXT(
    VkInstance instance,
    const VkDebugUtilsMessengerCreateInfoEXT* pCreateInfo,
    const VkAllocationCallbacks* pAllocator,
    VkDebugUtilsMessengerEXT* pMessenger);

• instance is the instance the messenger will be used with.
• pCreateInfo is a pointer to a VkDebugUtilsMessengerCreateInfoEXT structure containing the callback pointer, as well as defining conditions under which this messenger will trigger the callback.
• pAllocator controls host memory allocation as described in the Memory Allocation chapter.
• pMessenger is a pointer to a VkDebugUtilsMessengerEXT handle in which the created object is returned.

The application must ensure that vkCreateDebugUtilsMessengerEXT is not executed in parallel with any Vulkan command that is also called with instance or child of instance as the dispatchable argument.