diff --git a/cocoa/src/quartzcore.rs b/cocoa/src/quartzcore.rs
index b3420c4..eb882a5 100644
--- a/cocoa/src/quartzcore.rs
+++ b/cocoa/src/quartzcore.rs
@@ -299,6 +299,13 @@ impl CALayer {
         }
     }
 
+    #[inline]
+    pub fn add_sublayer(&self, sublayer: &CALayer) {
+        unsafe {
+            msg_send![self.id(), addSublayer:sublayer.id()]
+        }
+    }
+
     #[inline]
     pub fn insert_sublayer_at_index(&self, sublayer: &CALayer, index: u32) {
         unsafe {
@@ -1193,6 +1200,13 @@ impl CALayer {
             msg_send![self.id(), reloadValueForKeyPath:key.as_CFTypeRef()]
         }
     }
+
+    #[inline]
+    pub fn set_contents_opaque(&self, opaque: bool) {
+        unsafe {
+            msg_send![self.id(), setContentsOpaque:opaque as BOOL]
+        }
+    }
 }
 
 #[derive(Clone, Debug, PartialEq)]
diff --git a/core-foundation/src/bundle.rs b/core-foundation/src/bundle.rs
index 0e5909f..f23f9ae 100644
--- a/core-foundation/src/bundle.rs
+++ b/core-foundation/src/bundle.rs
@@ -15,9 +15,9 @@ use core_foundation_sys::base::kCFAllocatorDefault;
 use base::{CFType, TCFType};
 use url::CFURL;
 use dictionary::CFDictionary;
+use std::os::raw::c_void;
 use string::CFString;
 
-
 declare_TCFType!{
     /// A Bundle type.
     CFBundle, CFBundleRef
@@ -36,6 +36,24 @@ impl CFBundle {
         }
     }
 
+    pub fn bundle_with_identifier(identifier: CFString) -> Option<CFBundle> {
+        unsafe {
+            let bundle_ref = CFBundleGetBundleWithIdentifier(identifier.as_concrete_TypeRef());
+            if bundle_ref.is_null() {
+                None
+            } else {
+                Some(TCFType::wrap_under_get_rule(bundle_ref))
+            }
+        }
+    }
+
+    pub fn function_pointer_for_name(&self, function_name: CFString) -> *const c_void {
+        unsafe {
+            CFBundleGetFunctionPointerForName(self.as_concrete_TypeRef(),
+                                              function_name.as_concrete_TypeRef())
+        }
+    }
+
     pub fn main_bundle() -> CFBundle {
         unsafe {
             let bundle_ref = CFBundleGetMainBundle();