add visual indicator for input sessions/devices

- Also added colors & brushes
- Added WPF color converter properties to NotifyIcon
- Added try-catch around PersistentFileEndpoint.Dispose's Flush() call
- Updated some other UI elements

VolumeControl.CoreAudio/AudioDevice.cs

@@ -29,7 +29,7 @@ internal AudioDevice(MMDevice mmDevice)
             if (MMDevice.AudioMeterInformation is null)
                 throw new NullReferenceException($"{nameof(AudioDevice)} '{Name}' has a null {nameof(MMDevice.AudioMeterInformation)} property!");
 
-            SessionManager = new(this); //< TODO: try-catch?
+            SessionManager = new(this);
 
             AudioEndpointVolume.OnVolumeNotification += AudioEndpointVolume_OnVolumeNotification;
 

VolumeControl.CoreAudio/AudioDeviceSessionManager.cs

@@ -37,13 +37,17 @@ internal AudioDeviceSessionManager(AudioDevice audioDevice)
 
                 foreach (var audioSessionControl in AudioSessionManager2.Sessions)
                 {
-                    if (audioSessionControl.State == AudioSessionState.AudioSessionStateExpired)
+                    switch (audioSessionControl.State)
                     {
+                    case AudioSessionState.AudioSessionStateExpired:
                         if (showTraceLogMessages)
                             FLog.Trace($"[{nameof(AudioDeviceSessionManager)}] Ignoring expired session with {nameof(audioSessionControl.ProcessID)} {audioSessionControl.ProcessID} and {nameof(audioSessionControl.SessionInstanceIdentifier)} \"{audioSessionControl.SessionInstanceIdentifier}\".");
-                        continue;
+                        break;
+                    case AudioSessionState.AudioSessionStateInactive: //< add inactive sessions too
+                    case AudioSessionState.AudioSessionStateActive:
+                        CreateAndAddSessionIfUnique(audioSessionControl);
+                        break;
                     }
-                    CreateAndAddSessionIfUnique(audioSessionControl);
                 }
             }
         }

VolumeControl.Log/Endpoints/PersistentFileEndpoint.cs

@@ -81,7 +81,11 @@ public override void Close()
             /// </summary>
             public new void Dispose()
             {
-                Flush(); //< calls to Dispose() may expect that the stream is flushed
+                try
+                {
+                    Flush(); //< calls to Dispose() may expect that the stream is flushed
+                }
+                catch { }
                 if (!CanClose) return;
                 base.Dispose();
                 GC.SuppressFinalize(this);

VolumeControl.TypeExtensions/WinFormsInterop.cs

@@ -0,0 +1,17 @@
+namespace VolumeControl.TypeExtensions
+{
+    /// <summary>
+    /// Extension methods for WinForms-WPF interoperation.
+    /// </summary>
+    public static class WinFormsInterop
+    {
+        /// <summary>
+        /// Converts the <see cref="System.Windows.Media.Color"/> to the equivalent <see cref="System.Drawing.Color"/>.
+        /// </summary>
+        public static System.Drawing.Color ToFormsColor(this System.Windows.Media.Color color) => System.Drawing.Color.FromArgb(color.A, color.R, color.G, color.B);
+        /// <summary>
+        /// Converts the <see cref="System.Drawing.Color"/> to the equivalent <see cref="System.Windows.Media.Color"/>.
+        /// </summary>
+        public static System.Windows.Media.Color ToWpfColor(this System.Drawing.Color color) => System.Windows.Media.Color.FromArgb(color.A, color.R, color.G, color.B);
+    }
+}

VolumeControl/App.xaml

@@ -51,6 +51,9 @@
             <Thickness x:Key="WindowBorderThickness">3</Thickness>
             <SolidColorBrush x:Key="UpdateIconBrush">Yellow</SolidColorBrush>
             <SolidColorBrush x:Key="NotificationBackgroundBrush">#252525</SolidColorBrush>
+            <Color x:Key="ContextMenuBackgroundColor">#484848</Color>
+            <SolidColorBrush x:Key="ContextMenuBackgroundBrush" Color="{StaticResource ContextMenuBackgroundColor}" />
+            <SolidColorBrush x:Key="ContextMenuForegroundBrush">WhiteSmoke</SolidColorBrush>
 
             <!--  Tabs  -->
             <SolidColorBrush x:Key="TabBackgroundBrush">#383838</SolidColorBrush>
@@ -64,16 +67,23 @@
 
             <!--  TextBox Colors  -->
             <SolidColorBrush x:Key="TextBoxBackground">#1F1F1F</SolidColorBrush>
-            <SolidColorBrush x:Key="TextBoxForeground">WhiteSmoke</SolidColorBrush>
-            <SolidColorBrush x:Key="TextBoxForegroundDark">LightGray</SolidColorBrush>
             <SolidColorBrush x:Key="TextBoxBackgroundDisabled">#2F2F2F</SolidColorBrush>
+            <SolidColorBrush x:Key="TextBoxBackgroundMouseOver">#282828</SolidColorBrush>
+            <SolidColorBrush x:Key="TextBoxForeground">
+                <!--  #F5F5F5 is the hex code for WhiteSmoke  -->
+                #F5F5F5
+            </SolidColorBrush>
+            <SolidColorBrush x:Key="TextBoxForegroundColor">#C5C5FF</SolidColorBrush>
+            <SolidColorBrush x:Key="TextBoxForegroundDark">LightGray</SolidColorBrush>
             <SolidColorBrush x:Key="TextBoxSelectionBrush">#569DE5</SolidColorBrush>
             <SolidColorBrush x:Key="TextBoxWatermarkForeground">#9A9A9A</SolidColorBrush>
 
             <!--  Data Grid Colors  -->
             <SolidColorBrush x:Key="HeaderBackgroundBrush">#222</SolidColorBrush>
             <SolidColorBrush x:Key="GridRowBrush">#444</SolidColorBrush>
             <SolidColorBrush x:Key="GridRowAltBrush">#555</SolidColorBrush>
+            <SolidColorBrush x:Key="GridSecondaryRowBrush">#445</SolidColorBrush>
+            <SolidColorBrush x:Key="GridSecondaryRowAltBrush">#556</SolidColorBrush>
             <SolidColorBrush x:Key="GridHorizontalLineBrush">#222</SolidColorBrush>
 
             <LinearGradientBrush x:Key="AccentGradient" StartPoint="0.05,0" EndPoint="0.95,1">
@@ -115,10 +125,16 @@
             <Color x:Key="GrayForegroundColor">#B0B0B0</Color>
             <Color x:Key="GrayForegroundFocusedColor">#909090</Color>
 
-            <SolidColorBrush x:Key="SelectionForegroundBrush" Color="#4CF" />
+            <Color x:Key="SelectionDimBackgroundColor">#54CF</Color>
+            <Color x:Key="SelectionBackgroundColor">#94CF</Color>
+            <Color x:Key="SelectionForegroundColor">#4CF</Color>
+            <Color x:Key="SelectionBorderGradientStartColor">#4AF</Color>
+            <Color x:Key="SelectionBorderGradientEndColor">#4CF</Color>
+
+            <SolidColorBrush x:Key="SelectionForegroundBrush" Color="{StaticResource SelectionForegroundColor}" />
             <LinearGradientBrush x:Key="SelectionBorderBrush" StartPoint="0.2,0" EndPoint="0.8,1">
-                <GradientStop Offset="0" Color="#4AF" />
-                <GradientStop Offset="1" Color="#4CF" />
+                <GradientStop Offset="0" Color="{StaticResource SelectionBorderGradientStartColor}" />
+                <GradientStop Offset="1" Color="{StaticResource SelectionBorderGradientEndColor}" />
             </LinearGradientBrush>
             <Thickness x:Key="SelectionBorderThickness">1</Thickness>
 
@@ -284,6 +300,7 @@
                 <Setter Property="BorderThickness" Value="0" />
                 <Setter Property="FocusVisualStyle" Value="{x:Null}" />
             </Style>
+            <Style BasedOn="{StaticResource CheckBoxStyle}" TargetType="{x:Type CheckBox}" />
             <!--  Button  -->
             <Style x:Key="ButtonStyle" TargetType="{x:Type Button}">
                 <Style.Triggers>
@@ -912,12 +929,14 @@
                     <Trigger Property="IsEnabled" Value="True">
                         <Setter Property="Foreground" Value="WhiteSmoke" />
                     </Trigger>
-                    <!--  Focused  -->
+                    <Trigger Property="IsMouseOver" Value="True">
+                        <Setter Property="BorderBrush" Value="{StaticResource SelectionBorderBrush}" />
+                    </Trigger>
                     <Trigger Property="IsFocused" Value="True">
                         <Setter Property="BorderBrush" Value="{StaticResource SelectionBorderBrush}" />
-                        <Setter Property="BorderThickness" Value="{StaticResource SelectionBorderThickness}" />
                     </Trigger>
                 </Style.Triggers>
+                <Setter Property="BorderThickness" Value="{StaticResource SelectionBorderThickness}" />
                 <Setter Property="SnapsToDevicePixels" Value="true" />
                 <Setter Property="OverridesDefaultStyle" Value="true" />
                 <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto" />
@@ -1047,6 +1066,14 @@
                 <Setter Property="HorizontalContentAlignment" Value="Center" />
                 <Setter Property="VerticalContentAlignment" Value="Center" />
             </Style>
+            <Style TargetType="{x:Type ScrollViewer}">
+                <EventSetter Event="Loaded" Handler="ScrollViewer_Loaded_AttachHorizontalScrollBehavior" />
+            </Style>
+            <Style x:Key="ContextMenuStyle" TargetType="{x:Type ContextMenu}">
+                <Setter Property="Background" Value="{StaticResource ContextMenuBackgroundBrush}" />
+                <Setter Property="Foreground" Value="{StaticResource ContextMenuForegroundBrush}" />
+            </Style>
+            <Style BasedOn="{StaticResource ContextMenuStyle}" TargetType="{x:Type ContextMenu}" />
 
         </ResourceDictionary>
     </Application.Resources>

VolumeControl/App.xaml.cs

@@ -28,7 +28,8 @@ public App()
             // setup the tray icon
             TrayIcon = new(() => this.MainWindow.Visibility == Visibility.Visible)
             {
-                Tooltip = $"Volume Control {version}"
+                Tooltip = $"Volume Control {version}",
+                Background = (System.Windows.Media.Color)FindResource("ContextMenuBackgroundColor"),
             };
             TrayIcon.DoubleClick += (s, e) =>
             {
@@ -103,7 +104,9 @@ private void App_DispatcherUnhandledException(object sender, System.Windows.Thre
                 $"Sender: \"{sender}\" ({sender.GetType()})",
                 $"Thread: \"{e.Dispatcher.Thread.Name}\"",
                 e.Exception);
-            e.Handled = true;
+#if DEBUG
+            throw new Exception("Unhandled dispatcher exception!", e.Exception);
+#endif
         }
         #endregion App
 
@@ -162,6 +165,17 @@ private void TextBox_Loaded_AttachEscapeBehavior(object sender, RoutedEventArgs
         }
         #endregion TextBox
 
+        #region ScrollViewer
+        private void ScrollViewer_Loaded_AttachHorizontalScrollBehavior(object sender, RoutedEventArgs e)
+        {
+            var scrollViewer = (ScrollViewer)sender;
+
+            WPF.Behaviors.ScrollViewerHorizontalScrollBehavior behavior = new();
+            behavior.Attach(scrollViewer);
+            Microsoft.Xaml.Behaviors.Interaction.GetBehaviors(scrollViewer).Add(behavior);
+        }
+        #endregion ScrollViewer
+
         #endregion EventHandlers
     }
 }

VolumeControl/Controls/NotifyIcon.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Windows.Media;
 using VolumeControl.TypeExtensions;
 
 namespace VolumeControl.Controls
@@ -107,11 +108,21 @@ public System.Drawing.Color BackColor
             get => _contextMenuStrip.BackColor;
             set => _contextMenuStrip.BackColor = value;
         }
+        public Color Background
+        {
+            get => BackColor.ToWpfColor();
+            set => BackColor = value.ToFormsColor();
+        }
         public System.Drawing.Color ForeColor
         {
             get => _contextMenuStrip.ForeColor;
             set => _contextMenuStrip.ForeColor = value;
         }
+        public Color Foreground
+        {
+            get => ForeColor.ToWpfColor();
+            set => ForeColor = value.ToFormsColor();
+        }
         public bool DropShadowEnabled
         {
             get => _contextMenuStrip.DropShadowEnabled;

VolumeControl/DeviceListNotification.xaml

@@ -42,7 +42,6 @@
             <conv:BooleanInverter x:Key="InvertConverter" />
 
             <!--  Styles  -->
-            <Style BasedOn="{StaticResource CheckBoxStyle}" TargetType="{x:Type CheckBox}" />
             <Style BasedOn="{StaticResource TextBoxStyle}" TargetType="{x:Type TextBox}">
                 <Setter Property="Background" Value="#0000" />
                 <Setter Property="BorderThickness" Value="0" />
@@ -137,7 +136,17 @@
                         HorizontalAlignment="Stretch"
                         VerticalAlignment="Center"
                         Foreground="{Binding DeviceConfigVM.ForegroundBrush, Source={StaticResource Settings}}"
-                        Text="{Binding Name}" />
+                        Text="{Binding Name}">
+                        <TextBlock.Style>
+                            <Style TargetType="{x:Type TextBlock}">
+                                <Style.Triggers>
+                                    <DataTrigger Binding="{Binding AudioDevice.DataFlow}" Value="Capture">
+                                        <Setter Property="FontStyle" Value="Oblique" />
+                                    </DataTrigger>
+                                </Style.Triggers>
+                            </Style>
+                        </TextBlock.Style>
+                    </TextBlock>
                 </Grid>
             </DataTemplate>
             <DataTemplate x:Key="DeviceDisplayAlwaysBoldWidthDataTemplate" DataType="{x:Type vm:AudioDeviceVM}">
@@ -163,7 +172,17 @@
                         HorizontalAlignment="Stretch"
                         VerticalAlignment="Center"
                         Foreground="{Binding DeviceConfigVM.ForegroundBrush, Source={StaticResource Settings}}"
-                        Text="{Binding Name}" />
+                        Text="{Binding Name}">
+                        <TextBlock.Style>
+                            <Style TargetType="{x:Type TextBlock}">
+                                <Style.Triggers>
+                                    <DataTrigger Binding="{Binding AudioDevice.DataFlow}" Value="Capture">
+                                        <Setter Property="FontStyle" Value="Oblique" />
+                                    </DataTrigger>
+                                </Style.Triggers>
+                            </Style>
+                        </TextBlock.Style>
+                    </TextBlock>
                     <!--  Always Bold TextBlock (Keeps correct width)  -->
                     <TextBlock
                         Grid.Column="1"