C Specification
To query the available layers, call:
VkResult vkEnumerateInstanceLayerProperties(
uint32_t* pPropertyCount,
VkLayerProperties* pProperties);
Parameters
-
pPropertyCountis a pointer to an integer related to the number of layer properties available or queried, as described below. -
pPropertiesis eitherNULLor a pointer to an array of VkLayerProperties structures.
Description
If pProperties is NULL, then the number of layer properties
available is returned in pPropertyCount.
Otherwise, pPropertyCount must point to a variable set by the user to
the number of elements in the pProperties array, and on return the
variable is overwritten with the number of structures actually written to
pProperties.
If pPropertyCount is less than the number of layer properties
available, at most pPropertyCount structures will be written.
If pPropertyCount is smaller than the number of layers available,
VK_INCOMPLETE will be returned instead of VK_SUCCESS, to
indicate that not all the available layer properties were returned.
The list of available layers may change at any time due to actions outside
of the Vulkan implementation, so two calls to
vkEnumerateInstanceLayerProperties with the same parameters may
return different results, or retrieve different pPropertyCount values
or pProperties contents.
Once an instance has been created, the layers enabled for that instance will
continue to be enabled and valid for the lifetime of that instance, even if
some of them become unavailable for future instances.
See Also
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) 2014-2019 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.