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++ // Copyright (C) 2018 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include <QVulkanDeviceFunctions>
++ #include <QVulkanFunctions>
++ #include <QVulkanInstance>
++
++ namespace src_gui_vulkan_qvulkanfunctions {
++
++ struct Window {
++ void init();
++ QVulkanInstance *vulkanInstance() { return nullptr; }
++ };
++
++ //! [0]
++ void Window::init()
++ {
++ QVulkanInstance *inst = vulkanInstance();
++ QVulkanFunctions *f = inst->functions();
++ // ...
++ uint32_t count = 0;
++ VkResult err = f->vkEnumeratePhysicalDevices(inst->vkInstance(), &count, nullptr);
++ // ...
++ }
++ //! [0]
++
++ } // namespace src_gui_vulkan_qvulkanfunctions {
++
++
++ namespace src_gui_vulkan_qvulkanfunctions2 {
++ struct Window {
++ void render();
++ QVulkanInstance *vulkanInstance() { return nullptr; }
++ };
++ VkDevice_T *device = nullptr;
++ VkCommandBufferAllocateInfo cmdBufInfo;
++ VkCommandBuffer cmdBuf;
++
++ //! [1]
++ void Window::render()
++ {
++ QVulkanInstance *inst = vulkanInstance();
++ QVulkanDeviceFunctions *df = inst->deviceFunctions(device);
++ VkResult err = df->vkAllocateCommandBuffers(device, &cmdBufInfo, &cmdBuf);
++ // ...
++ }
++ //! [1]
++
++ } // src_gui_vulkan_qvulkanfunctions2