优化更新代码，添加界面功能并整合

WPFluent/Taskbar/TaskbarProgress.cs

@@ -0,0 +1,143 @@
+
+
+
+using WPFluent.Interop;
+
+namespace WPFluent.Taskbar;
+
+/// <summary>
+/// Allows to change the status of the displayed notification in the application icon on the TaskBar.
+/// </summary>
+public static class TaskBarProgress
+{
+    /// <summary>
+    /// Gets a value indicating whether the current operating system supports task bar manipulation.
+    /// </summary>
+    private static bool IsSupported() { return Win32.Utilities.IsOSWindows7OrNewer; }
+
+    /// <summary>
+    /// Allows to change the status of the progress bar in the task bar.
+    /// </summary>
+    /// <param name="window">Window to manipulate.</param>
+    /// <param name="taskBarProgressState">State of the progress indicator.</param>
+    public static bool SetState(Window? window, TaskBarProgressState taskBarProgressState)
+    {
+        if(window is null)
+        {
+            return false;
+        }
+
+        if(window.IsLoaded)
+        {
+            return SetState(new WindowInteropHelper(window).Handle, taskBarProgressState);
+        }
+
+        window.Loaded += (_, _) =>
+        {
+            _ = SetState(new WindowInteropHelper(window).Handle, taskBarProgressState);
+        };
+
+        return true;
+    }
+
+    /// <summary>
+    /// Allows to change the status of the progress bar in the task bar.
+    /// </summary>
+    /// <param name="hWnd">Window handle.</param>
+    /// <param name="taskBarProgressState">State of the progress indicator.</param>
+    public static bool SetState(IntPtr hWnd, TaskBarProgressState taskBarProgressState)
+    {
+        if(!IsSupported())
+        {
+            throw new Exception("Taskbar functions not available.");
+        }
+
+        return UnsafeNativeMethods.SetTaskbarState(hWnd, UnsafeReflection.Cast(taskBarProgressState));
+    }
+
+    /// <summary>
+    /// Allows to change the fill of the task bar.
+    /// </summary>
+    /// <param name="window">Window to manipulate.</param>
+    /// <param name="taskBarProgressState">Progress sate to set.</param>
+    /// <param name="current">Current value to display</param>
+    public static bool SetValue(Window window, TaskBarProgressState taskBarProgressState, int current)
+    {
+        if(current > 100)
+        {
+            current = 100;
+        }
+
+        if(current < 0)
+        {
+            current = 0;
+        }
+
+        return SetValue(window, taskBarProgressState, current, 100);
+    }
+
+    /// <summary>
+    /// Allows to change the fill of the task bar.
+    /// </summary>
+    /// <param name="hWnd">Window handle.</param>
+    /// <param name="taskBarProgressState">Progress sate to set.</param>
+    /// <param name="current">Current value to display</param>
+    public static bool SetValue(IntPtr hWnd, TaskBarProgressState taskBarProgressState, int current)
+    {
+        if(current > 100)
+        {
+            current = 100;
+        }
+
+        if(current < 0)
+        {
+            current = 0;
+        }
+
+        return SetValue(hWnd, taskBarProgressState, current, 100);
+    }
+
+    /// <summary>
+    /// Allows to change the fill of the task bar.
+    /// </summary>
+    /// <param name="window">Window to manipulate.</param>
+    /// <param name="taskBarProgressState">Progress sate to set.</param>
+    /// <param name="current">Current value to display</param>
+    /// <param name="total">Total number for division.</param>
+    public static bool SetValue(Window? window, TaskBarProgressState taskBarProgressState, int current, int total)
+    {
+        if(window is null)
+        {
+            return false;
+        }
+
+        if(window.IsLoaded)
+        {
+            return SetValue(new WindowInteropHelper(window).Handle, taskBarProgressState, current, total);
+        }
+
+        window.Loaded += (_, _) =>
+        {
+            _ = SetValue(new WindowInteropHelper(window).Handle, taskBarProgressState, current, total);
+        };
+
+        return false;
+    }
+
+    /// <summary>
+    /// Allows to change the fill of the task bar.
+    /// </summary>
+    /// <param name="hWnd">Window handle.</param>
+    /// <param name="taskBarProgressState">Progress sate to set.</param>
+    /// <param name="current">Current value to display</param>
+    /// <param name="total">Total number for division.</param>
+    public static bool SetValue(IntPtr hWnd, TaskBarProgressState taskBarProgressState, int current, int total)
+    {
+        if(!IsSupported())
+        {
+            throw new Exception("Taskbar functions not available.");
+        }
+
+        return UnsafeNativeMethods.SetTaskbarValue(hWnd, UnsafeReflection.Cast(taskBarProgressState), current, total);
+    }
+}