|
private IOServiceMatching ( [ name ) : |
||
| name | [ | |
| return | ||
object[] GetDeviceKeys(string kind)
{
var paths = new List <NativeMethods.io_string_t>();
var matching = NativeMethods.IOServiceMatching(kind).ToCFType(); // Consumed by IOServiceGetMatchingServices, so DON'T Dispose().
if (matching.IsSet)
{
int iteratorObj;
if (NativeMethods.IOReturn.Success == NativeMethods.IOServiceGetMatchingServices(0, matching, out iteratorObj))
{
using (var iterator = iteratorObj.ToIOObject())
{
while (true)
{
using (var handle = NativeMethods.IOIteratorNext(iterator).ToIOObject())
{
if (!handle.IsSet)
{
break;
}
NativeMethods.io_string_t path;
if (NativeMethods.IOReturn.Success == NativeMethods.IORegistryEntryGetPath(handle, "IOService", out path))
{
paths.Add(path);
}
}
}
}
}
}
return(paths.Cast <object>().ToArray());
}
protected override void Run(Action readyCallback)
{
using (var manager = NativeMethods.IOHIDManagerCreate(IntPtr.Zero).ToCFType())
{
RunAssert(manager.IsSet, "HidSharp IOHIDManagerCreate failed.");
using (var matching = NativeMethods.IOServiceMatching("IOHIDDevice").ToCFType())
{
RunAssert(matching.IsSet, "HidSharp IOServiceMatching failed.");
var devicesChangedCallback = new NativeMethods.IOHIDDeviceCallback(DevicesChangedCallback);
NativeMethods.IOHIDManagerSetDeviceMatching(manager.Handle, matching.Handle);
NativeMethods.IOHIDManagerRegisterDeviceMatchingCallback(manager.Handle, devicesChangedCallback, IntPtr.Zero);
NativeMethods.IOHIDManagerRegisterDeviceRemovalCallback(manager.Handle, devicesChangedCallback, IntPtr.Zero);
var runLoop = NativeMethods.CFRunLoopGetCurrent();
NativeMethods.CFRetain(runLoop);
NativeMethods.IOHIDManagerScheduleWithRunLoop(manager, runLoop, NativeMethods.kCFRunLoopDefaultMode);
try
{
readyCallback();
NativeMethods.CFRunLoopRun();
}
finally
{
NativeMethods.IOHIDManagerUnscheduleFromRunLoop(manager, runLoop, NativeMethods.kCFRunLoopDefaultMode);
NativeMethods.CFRelease(runLoop);
}
GC.KeepAlive(devicesChangedCallback);
}
}
}
