diff --git a/examples/src/lib.rs b/examples/src/lib.rs
index 2505594..419a4fd 100644
--- a/examples/src/lib.rs
+++ b/examples/src/lib.rs
@@ -79,7 +79,7 @@ pub fn record_submit_commandbuffer<F: FnOnce(&Device, vk::CommandBuffer)>(device
 }
 
 #[cfg(all(unix, not(target_os = "android")))]
-fn create_surface(instance: &Instance,
+unsafe fn create_surface(instance: &Instance,
                   entry: &Entry,
                   window: &winit::Window)
                   -> Result<vk::SurfaceKHR, vk::Result> {
@@ -95,11 +95,11 @@ fn create_surface(instance: &Instance,
     };
     let xlib_surface_loader = XlibSurface::new(&entry, &instance)
         .expect("Unable to load xlib surface");
-    xlib_surface_loader.create_xlib_surface_khr(&x11_create_info)
+    xlib_surface_loader.create_xlib_surface_khr(&x11_create_info, None)
 }
 
 #[cfg(windows)]
-fn create_surface(instance: &Instance,
+unsafe fn create_surface(instance: &Instance,
                   entry: &Entry,
                   window: &winit::Window)
                   -> Result<vk::SurfaceKHR, vk::Result> {
@@ -254,7 +254,7 @@ impl ExampleBase {
             };
             let debug_report_loader = DebugReport::new(&entry, &instance)
                 .expect("Unable to load debug report");
-            let debug_call_back = debug_report_loader.create_debug_report_callback_ext(&debug_info)
+            let debug_call_back = debug_report_loader.create_debug_report_callback_ext(&debug_info, None)
                 .unwrap();
             let surface = create_surface(&instance, &entry, &window).unwrap();
             let pdevices = instance.enumerate_physical_devices().expect("Physical device error");
@@ -379,7 +379,7 @@ impl ExampleBase {
                 p_queue_family_indices: ptr::null(),
                 queue_family_index_count: 0,
             };
-            let swapchain = swapchain_loader.create_swapchain_khr(&swapchain_create_info).unwrap();
+            let swapchain = swapchain_loader.create_swapchain_khr(&swapchain_create_info, None).unwrap();
             let pool_create_info = vk::CommandPoolCreateInfo {
                 s_type: vk::StructureType::CommandPoolCreateInfo,
                 p_next: ptr::null(),
@@ -596,11 +596,11 @@ impl Drop for ExampleBase {
                 self.device.destroy_image_view(image_view, None);
             }
             self.device.destroy_command_pool(self.pool, None);
-            self.swapchain_loader.destroy_swapchain_khr(self.swapchain);
+            self.swapchain_loader.destroy_swapchain_khr(self.swapchain, None);
             self.device.destroy_device(None);
-            self.surface_loader.destroy_surface_khr(self.surface);
-            self.debug_report_loader.destroy_debug_report_callback_ext(self.debug_call_back);
-            self.instance.destroy_instance();
+            self.surface_loader.destroy_surface_khr(self.surface, None);
+            self.debug_report_loader.destroy_debug_report_callback_ext(self.debug_call_back, None);
+            self.instance.destroy_instance(None);
         }
     }
 }
diff --git a/src/extensions/surface.rs b/src/extensions/surface.rs
index 468579c..b3b939a 100644
--- a/src/extensions/surface.rs
+++ b/src/extensions/surface.rs
@@ -5,6 +5,7 @@ use instance::Instance;
 use entry::Entry;
 use vk;
 use std::ffi::CStr;
+use ::RawPtr;
 
 pub struct Surface {
     pub handle: vk::Instance,
@@ -108,7 +109,7 @@ impl Surface {
         }
     }
 
-    pub unsafe fn destroy_surface_khr(&self, surface: vk::SurfaceKHR) {
-        self.surface_fn.destroy_surface_khr(self.handle, surface, ptr::null());
+    pub unsafe fn destroy_surface_khr(&self, surface: vk::SurfaceKHR, allocation_callbacks: Option<&vk::AllocationCallbacks>) {
+        self.surface_fn.destroy_surface_khr(self.handle, surface, allocation_callbacks.as_raw_ptr());
     }
 }
diff --git a/src/instance.rs b/src/instance.rs
index fe9699d..ba344c1 100644
--- a/src/instance.rs
+++ b/src/instance.rs
@@ -31,14 +31,17 @@ impl Instance {
     }
 
     pub unsafe fn create_device(&self,
-                         physical_device: vk::PhysicalDevice,
-                         create_info: &vk::DeviceCreateInfo,
-                         allocation_callbacks: Option<&vk::AllocationCallbacks>)
-                         -> Result<Device, DeviceError> {
+                                physical_device: vk::PhysicalDevice,
+                                create_info: &vk::DeviceCreateInfo,
+                                allocation_callbacks: Option<&vk::AllocationCallbacks>)
+                                -> Result<Device, DeviceError> {
         unsafe {
             let mut device: vk::Device = mem::uninitialized();
             let err_code = self.instance_fn
-                .create_device(physical_device, create_info, allocation_callbacks.as_raw_ptr(), &mut device);
+                .create_device(physical_device,
+                               create_info,
+                               allocation_callbacks.as_raw_ptr(),
+                               &mut device);
             if err_code != vk::Result::Success {
                 return Err(DeviceError::VkError(err_code));
             }
@@ -56,8 +59,8 @@ impl Instance {
         unsafe { self.instance_fn.get_device_proc_addr(device, p_name) }
     }
 
-    pub unsafe fn destroy_instance(&self) {
-        self.instance_fn.destroy_instance(self.handle, ptr::null());
+    pub unsafe fn destroy_instance(&self, allocation_callbacks: Option<&vk::AllocationCallbacks>) {
+        self.instance_fn.destroy_instance(self.handle, allocation_callbacks.as_raw_ptr());
     }
 
     pub fn get_physical_device_format_properties(&self,
diff --git a/src/vk.rs b/src/vk.rs
index da9765d..8100893 100644
--- a/src/vk.rs
+++ b/src/vk.rs
@@ -3708,7 +3708,8 @@ pub mod cmds {
     use super::*;
     #[allow(unused_imports)]
     use super::libc_reexports::*;
-    vk_functions!{
+
+vk_functions!{
     StaticFn,
     "vkGetInstanceProcAddr", get_instance_proc_addr(
         instance: Instance,