2e7f30931e02464b5bc8d0d4b6f9fe2b">glfwVulkanSupported</a> to check whether Vulkan is at least minimally available.</p>
<p>If Vulkan is available but no set of extensions allowing window surface creation was found, this function returns <code>NULL</code>. You may still use Vulkan for off-screen rendering and compute work.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">count</td><td>Where to store the number of extensions in