diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
new file mode 100644
index 0000000..52676ce
--- /dev/null
+++ b/.github/workflows/dotnet.yml
@@ -0,0 +1,43 @@
+name: .NET
+on:
+  release:
+    types: [ published ]
+  push:
+    tags:
+      - "*" # Push events to matching *, i.e. 1.0, 20.15.10
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        dotnet: [ '8.0.x' ]
+        os: [ windows-latest ]
+
+    runs-on: ${{ matrix.os }}
+    name: ${{ matrix.os }} - ${{ matrix.dotnet }}
+    env:
+      DOTNET_NOLOGO: true
+    
+    steps:
+      - name: Getting code
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: ${{ matrix.dotnet }}
+
+      - name: Clean
+        run: dotnet clean --configuration Release && dotnet nuget locals all --clear
+
+      - name: Build
+        run: dotnet build --configuration Release --nologo
+
+#      - name: Run tests
+#        run: dotnet test --configuration Release --nologo
+
+      - name: Pack
+        run: dotnet pack
+
+      - name: Push
+        run: dotnet nuget push -s https://api.nuget.org/v3/index.json -k ${{ secrets.NUGET_KEY }} artifacts\**.nupkg
diff --git a/README.md b/README.md
index 346ab46..9f279a5 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,10 @@ Install-Package ScreenGrab
 
 - [ScreenGrab](./src/ScreenGrab/README.md)
 
+### Notes
+
+This feature is extracted from[Text-Grab](https://github.com/TheJoeFin/Text-Grab)
+
 ### Contacts
 
 * [mail](mailto:zggsong@foxmail.com)
diff --git a/ScreenGrab.sln b/ScreenGrab.sln
index 2a03328..bb2de1b 100644
--- a/ScreenGrab.sln
+++ b/ScreenGrab.sln
@@ -19,6 +19,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		LICENSE = LICENSE
 		README.md = README.md
 		Directory.Packages.props = Directory.Packages.props
+		.github\workflows\dotnet.yml = .github\workflows\dotnet.yml
 	EndProjectSection
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ScreenGrab.Sample", "tests\ScreenGrab.Sample\ScreenGrab.Sample.csproj", "{94390E18-11B6-413E-8571-BCE129F7B3D8}"
diff --git a/src/ScreenGrab/README.md b/src/ScreenGrab/README.md
index c610964..5455823 100644
--- a/src/ScreenGrab/README.md
+++ b/src/ScreenGrab/README.md
@@ -2,3 +2,8 @@
 
 ## Usage
 
+```csharp
+BitmapSource bs;
+ScreenGrabber.OnCaptured = bitmap => bs = bitmap.ToImageSource();
+ScreenGrabber.Capture();
+```
\ No newline at end of file
diff --git a/src/ScreenGrab/ScreenGrabView.xaml.cs b/src/ScreenGrab/ScreenGrabView.xaml.cs
index 2b3dd6a..9565ba4 100644
--- a/src/ScreenGrab/ScreenGrabView.xaml.cs
+++ b/src/ScreenGrab/ScreenGrabView.xaml.cs
@@ -12,6 +12,9 @@
 
 namespace ScreenGrab;
 
+/// <summary>
+///     Extracted from the project <see href="https://github.com/TheJoeFin/Text-Grab"/>
+/// </summary>
 public partial class ScreenGrabView
 {
     #region Constructors
@@ -26,6 +29,7 @@ public ScreenGrabView(Action<Bitmap>? action)
 
     #region Properties
 
+    public Action? OnGrabClose { get; set; }
     private DisplayInfo? CurrentScreen { get; set; }
 
     #endregion Properties
@@ -75,6 +79,7 @@ private void CloseAllFullscreenGrabs()
         foreach (var window in Application.Current.Windows)
             if (window is ScreenGrabView sgv)
                 sgv.Close();
+        OnGrabClose?.Invoke();
     }
 
     private void FreezeUnfreezeAllScreenGrabs()
diff --git a/src/ScreenGrab/Grab.cs b/src/ScreenGrab/ScreenGrabber.cs
similarity index 73%
rename from src/ScreenGrab/Grab.cs
rename to src/ScreenGrab/ScreenGrabber.cs
index 8929a2f..8ed2888 100644
--- a/src/ScreenGrab/Grab.cs
+++ b/src/ScreenGrab/ScreenGrabber.cs
@@ -5,18 +5,29 @@
 
 namespace ScreenGrab;
 
-public class Grab
+public abstract class ScreenGrabber
 {
-    public Action<Bitmap>? OnImageCaptured { get; set; }
+    private static bool _isCapturing;
+    public static Action<Bitmap>? OnCaptured { get; set; }
 
-    public void Capture()
+    public static void Capture()
     {
+        if (_isCapturing) return;
+
+        _isCapturing = true;
+
         var allDisplayInfos = DisplayInfo.AllDisplayInfos;
         var allScreenGrab = Application.Current.Windows.OfType<ScreenGrabView>().ToList();
         var numberOfScreenGrabWindowsToCreate = allDisplayInfos.Length - allScreenGrab.Count;
 
         for (var i = 0; i < numberOfScreenGrabWindowsToCreate; i++)
-            allScreenGrab.Add(new ScreenGrabView(OnImageCaptured));
+        {
+            var view = new ScreenGrabView(OnCaptured)
+            {
+                OnGrabClose = () => _isCapturing = false
+            };
+            allScreenGrab.Add(view);
+        }
 
         const double sideLength = 40;
 
diff --git a/tests/ScreenGrab.Sample/MainWindow.xaml b/tests/ScreenGrab.Sample/MainWindow.xaml
index a246fbd..294f9fb 100644
--- a/tests/ScreenGrab.Sample/MainWindow.xaml
+++ b/tests/ScreenGrab.Sample/MainWindow.xaml
@@ -18,8 +18,8 @@
         <ui:TitleBar Title="ScreenGrab Sample" />
         <ui:Card Grid.Row="1" Margin="8">
             <StackPanel Orientation="Horizontal">
-                <Button Content="Capture" Margin="2 0" Click="Capture_Click" />
-                <Button Content="Clean" Margin="2 0" Click="Clean_Click" />
+                <Button Margin="2 0" Content="Capture(Win+Shift+A)" Click="Capture_Click" />
+                <Button Margin="2 0" Content="Clean" Click="Clean_Click" />
             </StackPanel>
         </ui:Card>
         <ui:DynamicScrollViewer Grid.Row="2" Margin="8">
diff --git a/tests/ScreenGrab.Sample/MainWindow.xaml.cs b/tests/ScreenGrab.Sample/MainWindow.xaml.cs
index a2270d3..fd2985e 100644
--- a/tests/ScreenGrab.Sample/MainWindow.xaml.cs
+++ b/tests/ScreenGrab.Sample/MainWindow.xaml.cs
@@ -17,11 +17,8 @@ private void Capture()
     {
         Clean();
 
-        var grab = new Grab
-        {
-            OnImageCaptured = bitmap => Img.Source = bitmap.ToImageSource()
-        };
-        grab.Capture();
+        ScreenGrabber.OnCaptured = bitmap => Img.Source = bitmap.ToImageSource();
+        ScreenGrabber.Capture();
     }
 
     private void Capture(object? sender, HotkeyEventArgs e)