Imporoved exception-handling in device providers

RGB.NET.Core/Devices/AbstractRGBDeviceProvider.cs

@@ -22,7 +22,7 @@ namespace RGB.NET.Core
 
         #region Events
 
-        public event EventHandler<Exception>? Exception;
+        public event EventHandler<ExceptionEventArgs>? Exception;
 
         #endregion
 
@@ -54,10 +54,15 @@ namespace RGB.NET.Core
 
                 IsInitialized = true;
             }
+            catch (DeviceProviderException)
+            {
+                Reset();
+                throw;
+            }
             catch (Exception ex)
             {
                 Reset();
-                Throw(ex);
+                Throw(ex, true);
                 return false;
             }
 
@@ -98,15 +103,16 @@ namespace RGB.NET.Core
             IsInitialized = false;
         }
 
-        protected virtual void Throw(Exception ex)
+        protected virtual void Throw(Exception ex, bool isCritical = false)
         {
-            try { OnException(ex); } catch { /* we don't want to throw due to bad event handlers */ }
+            ExceptionEventArgs args = new(ex, isCritical, ThrowsExceptions);
+            try { OnException(args); } catch { /* we don't want to throw due to bad event handlers */ }
 
-            if (ThrowsExceptions)
-                throw ex;
+            if (args.Throw)
+                throw new DeviceProviderException(ex, isCritical);
         }
 
-        protected virtual void OnException(Exception ex) => Exception?.Invoke(this, ex);
+        protected virtual void OnException(ExceptionEventArgs args) => Exception?.Invoke(this, args);
 
         public virtual void Dispose()
         {

RGB.NET.Core/Devices/IRGBDeviceProvider.cs

@@ -27,7 +27,7 @@ namespace RGB.NET.Core
         /// <summary>
         /// Occurs when an exception is thrown in the device provider
         /// </summary>
-        event EventHandler<Exception>? Exception;
+        event EventHandler<ExceptionEventArgs>? Exception;
 
         #endregion
 

RGB.NET.Core/Events/ExceptionEventArgs.cs

@@ -18,6 +18,10 @@ namespace RGB.NET.Core
         /// </summary>
         public Exception Exception { get; }
 
+        public bool IsCritical { get; }
+
+        public bool Throw { get; set; }
+
         #endregion
 
         #region Constructors
@@ -27,9 +31,11 @@ namespace RGB.NET.Core
         /// Initializes a new instance of the <see cref="T:RGB.NET.Core.ExceptionEventArgs" /> class.
         /// </summary>
         /// <param name="exception">The <see cref="T:System.Exception" /> which is responsible for the event-call.</param>
-        public ExceptionEventArgs(Exception exception)
+        public ExceptionEventArgs(Exception exception, bool isCritical = false, bool @throw = false)
         {
             this.Exception = exception;
+            this.IsCritical = isCritical;
+            this.Throw = @throw;
         }
 
         #endregion

RGB.NET.Core/Exceptions/DeviceProviderException.cs

@@ -0,0 +1,23 @@
+using System;
+
+namespace RGB.NET.Core
+{
+    public class DeviceProviderException : ApplicationException
+    {
+        #region Properties & Fields
+
+        private bool IsCritical { get; }
+
+        #endregion
+
+        #region Constructors
+
+        public DeviceProviderException(Exception? innerException, bool isCritical)
+            : base(innerException?.Message, innerException)
+        {
+            this.IsCritical = isCritical;
+        }
+
+        #endregion
+    }
+}