internal void Close()
{
// NOTE: Stop gesture recognition, if the host application is not running.
if (Settings != null)
{
Settings.IsToDetectFacesOnDevice.Value = false;
// NOTE: If the firmware version is larger than 1.1, stopping hand detection changes the LED color from blue to red.
Settings.IsToDetectHandsOnDevice.Value = false;
}
if (FaceDetectionOnHost != null)
{
FaceDetectionOnHost.Dispose(); FaceDetectionOnHost = null;
}
// static event
Microsoft.Win32.SystemEvents.DisplaySettingsChanged -= EgsGestureHidReport.OnDisplaySettingsChanged;
if (CameraViewImageSourceBitmapCapture != null)
{
CameraViewImageSourceBitmapCapture.DisposeWithClearingVideoCaptureDeviceInformationOnDeviceDisconnected();
// TODO: FIX: The next line can cause exception, in the other threads or in getting images with a Timer.
CameraViewImageSourceBitmapCapture = null;
}
if (HidReportsUpdate != null)
{
HidReportsUpdate.OnDisable();
HidReportsUpdate = null;
}
}
internal void StopFaceDetectionAndRestartUvcAndRestartFaceDetection()
{
bool isToDetectFacesPrevious = Settings.IsToDetectFaces.Value;
if (Settings.IsToDetectFaces.Value != false)
{
Settings.IsToDetectFaces.Value = false;
}
// NOTE: Wait completion of host face detection
var sw = Stopwatch.StartNew();
while (sw.ElapsedMilliseconds < FaceDetectionOnHost.DetectFaceIntervalMillisecondsMinimum.Value * 2 && FaceDetectionOnHost.IsDetecting)
{
System.Threading.Thread.Sleep(100);
}
ResetHidReportObjects();
if (CameraViewImageSourceBitmapCapture.IsCameraDeviceConnected)
{
CameraViewImageSourceBitmapCapture.SetupCameraDevice();
}
// NOTE: Maybe necessary!
System.Threading.Thread.Sleep(1000);
if (Settings.IsToDetectFaces.Value != isToDetectFacesPrevious)
{
Settings.IsToDetectFaces.Value = isToDetectFacesPrevious;
}
}
/// <summary>
/// This method should be called only from EgsDevicesManager. This updates only connection state of "Camera".
/// </summary>
internal void SetIsCameraDeviceConnectedToFalse()
{
Debug.WriteLine("[EgsDevice] TrySetIsConnectedToFalse() called. DateTime.Now = " + DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss.fff", CultureInfo.InvariantCulture));
// This also updates CameraViewImageSourceBitmapCapture.IsCameraDeviceConnected
if (CameraViewImageSourceBitmapCapture.IsCameraDeviceConnected)
{
CameraViewImageSourceBitmapCapture.DisposeWithClearingVideoCaptureDeviceInformationOnDeviceDisconnected();
}
CameraViewImageSourceBitmapCapture.UpdateIsUpdatingImageSource();
ResetHidReportObjects();
}
internal void InitializeOnceAtStartup()
{
if (HidReportsUpdate != null)
{
HidReportsUpdate.InitializeOnceAtStartup(this);
}
TouchScreenHidReport.InitializeOnceAtStartup(this);
EgsGestureHidReport.InitializeOnceAtStartup(this);
AddPropertiesToHidAccessPropertyList();
InitializePropertiesByDefaultValue();
TemperatureInCelsius.ValueUpdated += delegate { OnPropertyChanged(nameof(TemperatureInCelsiusString)); };
TemperatureInFahrenheit.ValueUpdated += delegate { OnPropertyChanged(nameof(TemperatureInFahrenheitString)); };
CameraViewImageSourceBitmapCapture.InitializeOnceAtStartup(this);
FaceDetectionOnHost.InitializeOnceAtStartup(this);
// static event
Microsoft.Win32.SystemEvents.DisplaySettingsChanged += EgsGestureHidReport.OnDisplaySettingsChanged;
}
/// <summary>
/// This method should be called only from EgsDevicesManager. This updates only connection state of "Camera".
/// </summary>
internal void TrySetIsCameraDeviceConnectedToTrue()
{
Debug.WriteLine("[EgsDevice] TrySetIsCameraDeviceConnectedToTrue() called. DateTime.Now = " + DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss.fff", CultureInfo.InvariantCulture));
// NOTE (en): We confirmed there is time lag, from setting "CameraViewImageSourceBitmapSize" to becoming that the app can get correct values related to the "CameraViewImageSourceBitmapSize".
// NOTE (ja): PCの機種によっては？？カメラの解像度設定から、表示領域の内部状態が更新されてHIDで取得できるようになるまで、タイムラグがあることを確認した！！
System.Threading.Thread.Sleep(300);
// The next line updates device.CameraViewImageSourceBitmapCapture.IsCameraDeviceConnected
CameraViewImageSourceBitmapCapture.SetupCameraDevice();
CameraViewImageSourceBitmapCapture.UpdateIsUpdatingImageSource();
// MUSTDO: Check if the application works correctly or not, if the next block is activated. Currently it works correctly.
if (true)
{
System.Threading.Thread.Sleep(300);
// NOTE: Just in case, I leave the code to get the value again.
GetReadonlyHidAccessPropertyByGetHidFeatureReport(Settings.CaptureImageSize);
System.Threading.Thread.Sleep(100);
GetReadonlyHidAccessPropertyByGetHidFeatureReport(Settings.CameraViewImageSourceRectInCaptureImage);
EgsGestureHidReport.UpdateImageSizeRelatedProperties();
}
}