public IOHIDElement[] GetAllElements () {
ThrowIfDisposed ();
var arrayRef = IOHIDDeviceCopyMatchingElements (Handle, IntPtr.Zero, 0);
if (arrayRef == IntPtr.Zero)
return null;
using (var array = new CFArray (arrayRef, true)) {
var elements = new IOHIDElement[array.Count];
for (int i = 0; i < elements.Length; i++)
elements [i] = new IOHIDElement (array.GetValue (i), true);
return elements;
}
}
static AccessoryInfo[] ExtractAccessoryInfo (IntPtr ptr, NSString id, NSString description)
{
using (var array = new CFArray (ptr)) {
var res = new AccessoryInfo [array.Count];
for (int i = 0; i < res.Length; ++i) {
var dict = array.GetValue (i);
var n = new NSNumber (CFDictionary.GetValue (dict, id.Handle));
var desc = CFString.FetchString (CFDictionary.GetValue (dict, description.Handle));
res [i] = new AccessoryInfo ((int) n, desc);
id.Dispose ();
}
return res;
}
}
public IOHIDElement[] GetMatchingElements (IDictionary<string, ValueType> matchingDictionary) {
ThrowIfDisposed ();
if (matchingDictionary == null)
throw new ArgumentNullException ("matchingDictionary");
var matching = NSDictionary.FromObjectsAndKeys (matchingDictionary.Values.ToArray (),
matchingDictionary.Keys.ToArray ());
var arrayRef = IOHIDDeviceCopyMatchingElements (Handle, matching.Handle, 0);
if (arrayRef == IntPtr.Zero)
return null;
using (var array = new CFArray (arrayRef, true)) {
var elements = new IOHIDElement[array.Count];
for (int i = 0; i < elements.Length; i++)
elements [i] = new IOHIDElement(array.GetValue (i), true);
return elements;
}
}