C Specification
To acquire an available presentable image to use, and retrieve the index of that image, call:
VkResult vkAcquireNextImageKHR(
    VkDevice                                    device,
    VkSwapchainKHR                              swapchain,
    uint64_t                                    timeout,
    VkSemaphore                                 semaphore,
    VkFence                                     fence,
    uint32_t*                                   pImageIndex);Parameters
- 
deviceis the device associated withswapchain.
- 
swapchainis the non-retired swapchain from which an image is being acquired.
- 
timeoutspecifies how long the function waits, in nanoseconds, if no image is available.
- 
semaphoreis VK_NULL_HANDLE or a semaphore to signal.
- 
fenceis VK_NULL_HANDLE or a fence to signal.
- 
pImageIndexis a pointer to auint32_tin which the index of the next image to use (i.e. an index into the array of images returned byvkGetSwapchainImagesKHR) is returned.
Document Notes
For more information, see the Vulkan Specification
This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.
Copyright
Copyright (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.