public static T AEGetNthPtr <T> (ref AEDesc descList, int index, OSType desiredType) where T : struct
{
int len = Marshal.SizeOf(typeof(T));
IntPtr bufferPtr = Marshal.AllocHGlobal(len);
try {
CheckReturn(AEGetNthPtr(ref descList, index, desiredType, 0, 0, bufferPtr, len, 0));
T val = (T)Marshal.PtrToStructure(bufferPtr, typeof(T));
return(val);
} finally{
Marshal.FreeHGlobal(bufferPtr);
}
}
public static void AECreateDesc(OSType typeCode, byte[] data, out AEDesc result)
{
CheckReturn(AECreateDesc(typeCode, data, data.Length, out result));
}
public static extern AEDescStatus AESizeOfNthItem(ref AEDesc descList, int index, ref OSType type, out int size);
static extern AEDescStatus AEGetNthPtr(ref AEDesc descList, int index, OSType desiredType, uint keyword,
uint zero, out IntPtr outPtr, int bufferSize, int zero2);
static extern AEDescStatus AEGetNthPtr(ref AEDesc descList, int index, OSType desiredType, uint keyword,
out CarbonEventParameterType actualType, IntPtr buffer, int bufferSize, out int actualSize);
static extern AEDescStatus AECreateDesc(OSType typeCode, byte[] data, int dataSize, out AEDesc desc);
static extern AEDescStatus AECreateDesc(OSType typeCode, IntPtr dataPtr, int dataSize, out AEDesc desc);
public static T[] GetListFromAEDesc <T, TRef> (ref AEDesc list, AEDescValueSelector <TRef, T> sel, OSType type)
where TRef : struct
{
long count = AppleEvent.AECountItems(ref list);
T[] arr = new T[count];
for (int i = 1; i <= count; i++)
{
TRef r = AppleEvent.AEGetNthPtr <TRef> (ref list, i, type);
arr [i - 1] = sel(ref r);
}
return(arr);
}
public static extern ComponentInstance OpenDefaultComponent(OSType componentType, OSType componentSubType);
