ZooFlow: Add Clipboard Watcher Class

GUIs.ZooFlow/ClassWin32.vb

@@ -1,6 +1,17 @@
 Imports System.Runtime.InteropServices
 
 Public Class ClassWin32
+    Public Const ULW_COLORKEY As Int32 = &H1
+    Public Const ULW_ALPHA As Int32 = &H2
+    Public Const ULW_OPAQUE As Int32 = &H4
+    Public Const AC_SRC_OVER As Byte = &H0
+    Public Const AC_SRC_ALPHA As Byte = &H1
+
+    Public Const WM_NCLBUTTONDOWN As Integer = &HA1
+    Public Const HTCAPTION As Integer = &H2
+
+    Public Const WM_DRAWCLIPBOARD As Integer = &H308
+
     Public Enum Bool
         [False] = 0
         [True]
@@ -44,40 +55,51 @@ Public Class ClassWin32
         Public AlphaFormat As Byte
     End Structure
 
-    Public Const ULW_COLORKEY As Int32 = &H1
-    Public Const ULW_ALPHA As Int32 = &H2
-    Public Const ULW_OPAQUE As Int32 = &H4
-    Public Const AC_SRC_OVER As Byte = &H0
-    Public Const AC_SRC_ALPHA As Byte = &H1
-
-    Public Const WM_NCLBUTTONDOWN As Integer = &HA1
-    Public Const HTCAPTION As Integer = &H2
-
     <DllImport("user32.dll", ExactSpelling:=True, SetLastError:=True)>
     Public Shared Function UpdateLayeredWindow(ByVal hwnd As IntPtr, ByVal hdcDst As IntPtr, ByRef pptDst As Point, ByRef psize As Size, ByVal hdcSrc As IntPtr, ByRef pprSrc As Point, ByVal crKey As Int32, ByRef pblend As BLENDFUNCTION, ByVal dwFlags As Int32) As Bool
     End Function
+
     <DllImport("user32.dll", ExactSpelling:=True, SetLastError:=True)>
     Public Shared Function GetDC(ByVal hWnd As IntPtr) As IntPtr
     End Function
+
     <DllImport("user32.dll", ExactSpelling:=True)>
     Public Shared Function ReleaseDC(ByVal hWnd As IntPtr, ByVal hDC As IntPtr) As Integer
     End Function
+
     <DllImport("gdi32.dll", ExactSpelling:=True, SetLastError:=True)>
     Public Shared Function CreateCompatibleDC(ByVal hDC As IntPtr) As IntPtr
     End Function
+
     <DllImport("gdi32.dll", ExactSpelling:=True, SetLastError:=True)>
     Public Shared Function DeleteDC(ByVal hdc As IntPtr) As Bool
     End Function
+
     <DllImport("gdi32.dll", ExactSpelling:=True)>
     Public Shared Function SelectObject(ByVal hDC As IntPtr, ByVal hObject As IntPtr) As IntPtr
     End Function
+
     <DllImport("gdi32.dll", ExactSpelling:=True, SetLastError:=True)>
     Public Shared Function DeleteObject(ByVal hObject As IntPtr) As Bool
     End Function
+
     <DllImport("User32.dll")>
     Public Shared Function ReleaseCapture() As Boolean
     End Function
+
     <DllImport("User32.dll")>
     Public Shared Function SendMessage(ByVal hWnd As IntPtr, ByVal Msg As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
     End Function
+
+    <DllImport("user32", EntryPoint:="AddClipboardFormatListener")>
+    Public Shared Function AddClipboardFormatListener(ByVal hWnd As IntPtr) As Boolean
+    End Function
+
+    <DllImport("user32", EntryPoint:="RemoveClipboardFormatListener")>
+    Public Shared Function RemoveClipboardFormatListener(ByVal hWnd As IntPtr) As Boolean
+    End Function
+
+    <DllImport("user32", EntryPoint:="SetClipboardViewer")>
+    Public Shared Function SetClipboardViewer(ByVal hWnd As IntPtr) As IntPtr
+    End Function
 End Class

GUIs.ZooFlow/ClipboardWatcher/Watcher.vb

@@ -0,0 +1,64 @@
+Imports System.Runtime.InteropServices
+
+Namespace ClipboardWatcher
+    Public Class Watcher
+        Inherits NativeWindow
+        Implements IDisposable
+
+        Public Event ClipboardChanged As EventHandler(Of IDataObject)
+        Public Shared Singleton As New Watcher
+
+        Private _Handle As IntPtr
+
+        Private Sub New()
+            MyBase.CreateHandle(New CreateParams)
+            _Handle = ClassWin32.SetClipboardViewer(Handle)
+        End Sub
+
+        Protected Overrides Sub WndProc(ByRef m As Message)
+            Select Case m.Msg
+                Case ClassWin32.WM_DRAWCLIPBOARD
+                    Dim oData As IDataObject = Clipboard.GetDataObject
+                    RaiseEvent ClipboardChanged(Me, oData)
+            End Select
+            MyBase.WndProc(m)
+        End Sub
+
+#Region "IDisposable Support"
+        ' Für diese Klasse ist korrekte Ressourcenbereinigung besonders wichtig, da 
+        ' mit systemübergreifenden Ressourcen gearbeitet wird
+
+        ' So ermitteln Sie überflüssige Aufrufe
+        Private _DisposedValue As Boolean = False
+
+        Protected Overridable Sub Dispose(ByVal pDisposing As Boolean)
+            If Not _DisposedValue Then
+                If pDisposing Then
+                    ' TODO: Verwaltete Ressourcen freigeben, wenn sie explizit 
+                    ' aufgerufen werden
+                End If
+                MyBase.DestroyHandle()
+                Dim H As IntPtr = ClassWin32.SetClipboardViewer(_Handle)
+            End If
+            _DisposedValue = True
+        End Sub
+
+        ' Dieser Code wird von Visual Basic hinzugefügt, um das Dispose-Muster 
+        ' richtig zu implementieren.
+        Public Sub Dispose() Implements IDisposable.Dispose
+            ' Sie sollten diesen Code nicht ändern, sondern stattdessen ihren
+            ' Bereinigungscode oben in 
+            ' Dispose(ByVal disposing As Boolean) einfügen.
+            Dispose(True)
+            System.GC.SuppressFinalize(Me)
+        End Sub
+
+        Protected Overrides Sub Finalize()
+            MyBase.Finalize()
+            Dispose(False)
+        End Sub
+#End Region
+    End Class
+
+End Namespace
+

GUIs.ZooFlow/ZooFlow.vbproj

@@ -112,7 +112,7 @@
   <ItemGroup>
     <Compile Include="ApplicationEvents.vb" />
     <Compile Include="Base\BaseClass.vb" />
-    <Compile Include="ClassClipboardWatcher.vb" />
+    <Compile Include="ClipboardWatcher\Watcher.vb" />
     <Compile Include="ClassCommandlineArgs.vb" />
     <Compile Include="Search\frmFlowSearch.Designer.vb">
       <DependentUpon>frmFlowSearch.vb</DependentUpon>

GUIs.ZooFlow/frmFlowForm.vb

@@ -33,7 +33,7 @@ Public Class frmFlowForm
 
     ' Events
     Public Event ClipboardChanged As EventHandler(Of IDataObject)
-    Private WithEvents Watcher As ClassClipboardWatcher = ClassClipboardWatcher.Singleton
+    Private WithEvents Watcher As ClipboardWatcher.Watcher = ClipboardWatcher.Watcher.Singleton
 
     Public Sub New()
         ' Dieser Aufruf ist für den Designer erforderlich.
@@ -89,6 +89,7 @@ Public Class frmFlowForm
         ' === Register As Event Listener ===
         EventBus.Instance.Register(Me)
 
+
         ' === Set Form Properties ===
         TopMost = True
         AllowDrop = True
@@ -105,6 +106,9 @@ Public Class frmFlowForm
             AddHandler oControl.MouseLeave, AddressOf frmFlowForm_MouseLeave
         Next
 
+        AddHandler Watcher.ClipboardChanged, AddressOf Watcher_ClipboardChanged
+
+
         ' TODO: Clean up
         Dim oSQL = My.Queries.Common.FNIDB_GET_SEARCH_PROFILES(My.Application.User.UserId, My.Application.User.Language)
         Dim oDatatable As DataTable = My.DatabaseIDB.GetDatatable(oSQL)
@@ -115,7 +119,7 @@ Public Class frmFlowForm
             DTIDB_SEARCHES = oDatatable
             PictureBoxSearch.Visible = True
         End If
-        If My.Application.ModulesActive.Contains(ClassConstants.MODULE_GLOBAL_INDEXER) Then
+        If My.Application.ModulesActive.Contains(MODULE_GLOBAL_INDEXER) Then
             FileDrop = New ClassFileDrop(My.LogConfig)
             FileHandle = New ClassFilehandle(My.LogConfig)
             Refresh_RegexTable()
@@ -124,6 +128,9 @@ Public Class frmFlowForm
         Me.Cursor = Cursors.Default
     End Sub
 
+    Private Sub Watcher_ClipboardChanged(sender As Object, e As IDataObject)
+        Throw New NotImplementedException()
+    End Sub
 
     Private Sub TimerRefreshData_Tick(sender As Object, e As EventArgs)
         'TODO: Refresh Data