vkGetDisplayPlaneSupportedDisplaysKHR

To determine which displays a plane is usable with, call

VkResult vkGetDisplayPlaneSupportedDisplaysKHR(
    VkPhysicalDevice physicalDevice,
    uint32_t planeIndex,
    uint32_t* pDisplayCount,
    VkDisplayKHR* pDisplays);

• physicalDevice is a physical device.
• planeIndex is the plane which the application wishes to use, and must be in the range [0, physical device plane count - 1].
• pDisplayCount is a pointer to an integer related to the number of displays available or queried, as described below.
• pDisplays is either NULL or a pointer to an array of VkDisplayKHR handles.

If pDisplays is NULL, then the number of displays usable with the specified planeIndex for physicalDevice is returned in pDisplayCount. Otherwise, pDisplayCount must point to a variable set by the application to the number of elements in the pDisplays array, and on return the variable is overwritten with the number of handles actually written to pDisplays. If the value of pDisplayCount is less than the number of usable display-plane pairs for physicalDevice, at most pDisplayCount handles will be written, and VK_INCOMPLETE will be returned instead of VK_SUCCESS, to indicate that not all the available pairs were returned.