int vk_find_qfamily(unsigned int flags);
VkQueue vk_getq_fam(int fam, int n);
VkQueue vk_getq(unsigned int flags, int n);
VkCommandBuffer vk_create_cmdbuf_fam(int qfam, int level);
VkCommandBuffer vk_create_cmdbuf(unsigned int qflags, int level);
int vk_find_qfamily(unsigned int flags);
VkQueue vk_getq_fam(int fam, int n);
VkQueue vk_getq(unsigned int flags, int n);
VkCommandBuffer vk_create_cmdbuf_fam(int qfam, int level);
VkCommandBuffer vk_create_cmdbuf(unsigned int qflags, int level);