on returns <code>NULL</code> and generates a <a class="el" href="group__errors.html#ga56882b290db23261cc6c053c40c2d08e">GLFW_API_UNAVAILABLE</a> error. Call <a class="el" href="group__vulkan.html#ga2e7f30931e02464b5bc8d0d4b6f9fe2b">glfwVulkanSupported</a> to check whether Vulkan is at least minimally available.</p>
<p>This function is equivalent to calling <code>vkGetInstanceProcAddr</code> with a platform-specific query of the Vulkan loader as a fallback.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <t