private void NativeDiskDisappeared(IntPtr disk, IntPtr context)
{
if (this.DeviceDisappeared == null)
{
// if no-one subscribed to this event, do nothing
return;
}
IntPtr device = DiskArbitration.DADiskCopyIOMedia(disk);
IntPtr propertiesRef = DiskArbitration.DADiskCopyDescription(disk);
NSDictionary properties = new NSDictionary(propertiesRef);
DeviceArguments deviceArguments = new DeviceArguments(properties, this);
if (properties.HasKey("DADeviceProtocol") && properties.GetStringValue("DADeviceProtocol") == "USB")
{
OsxUsbData usb = new OsxUsbData(device);
deviceArguments.UsbInfo = usb;
}
IOKit.IOObjectRelease(device);
this.DeviceDisappeared(this, deviceArguments);
GC.KeepAlive(this);
}
private void NativeDiskChanged(IntPtr disk, IntPtr keys, IntPtr context)
{
if (this.DeviceChanged == null)
{
// if no-one subscribed to this event, do nothing
return;
}
IntPtr device = DiskArbitration.DADiskCopyIOMedia(disk);
IntPtr propertiesRef = DiskArbitration.DADiskCopyDescription(disk);
// using MonoMac we can get a managed NSDictionary from the pointer
NSDictionary properties = new NSDictionary(propertiesRef);
DeviceArguments deviceArguments = new DeviceArguments(properties, this);
if (properties.HasKey("DADeviceProtocol") && properties.GetStringValue("DADeviceProtocol") == "USB")
{
OsxUsbData usb = new OsxUsbData(device);
deviceArguments.UsbInfo = usb;
}
IOKit.IOObjectRelease(device);
// trigger the public event for any subscribers
this.DeviceChanged(this, deviceArguments);
GC.KeepAlive(this);
}