Custom vertex editing commands
Commands\UsingOutOfBoxVertexCommands.vb
' Copyright 2012 ESRI
' 
' All rights reserved under the copyright laws of the United States
' and applicable international laws, treaties, and conventions.
' 
' You may freely redistribute and use this sample code, with or
' without modification, provided you include the original copyright
' notice and use restrictions.
' 
' See the use restrictions.
' 

Imports System.Runtime.InteropServices
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Resources
Imports System.Reflection

Imports ESRI.ArcGIS.ADF.BaseClasses
Imports ESRI.ArcGIS.ADF.CATIDs
Imports ESRI.ArcGIS.Controls
Imports ESRI.ArcGIS.Carto
Imports ESRI.ArcGIS.Geometry
Imports ESRI.ArcGIS.Geodatabase
Imports ESRI.ArcGIS.SystemUI
Imports ESRI.ArcGIS.Display


<ComClass(UsingOutOfBoxVertexCommands.ClassId, UsingOutOfBoxVertexCommands.InterfaceId, UsingOutOfBoxVertexCommands.EventsId), _
 ProgId("VertexCommands_VB.UsingOutOfBoxVertexCommands")> _
Public NotInheritable Class UsingOutOfBoxVertexCommands
    Inherits BaseTool
    Implements ICommandSubType


#Region "COM GUIDs"
    ' These  GUIDs provide the COM identity for this class 
    ' and its COM interfaces. If you change them, existing 
    ' clients will no longer be able to access the class.
    Public Const ClassId As String = "E7083AC5-E3FD-41d4-AA83-E6CA65E5C5E0"
    Public Const InterfaceId As String = "3913FFBF-EAF0-453e-89D5-104B072C6138"
    Public Const EventsId As String = "4359BAD5-9645-4c60-A570-46E5084E24F9"
#End Region

#Region "COM Registration Function(s)"
    <ComRegisterFunction(), ComVisibleAttribute(False)> _
    Public Shared Sub RegisterFunction(ByVal registerType As Type)
        ' Required for ArcGIS Component Category Registrar support
        ArcGISCategoryRegistration(registerType)

        'Add any COM registration code after the ArcGISCategoryRegistration() call

    End Sub

    <ComUnregisterFunction(), ComVisibleAttribute(False)> _
    Public Shared Sub UnregisterFunction(ByVal registerType As Type)
        ' Required for ArcGIS Component Category Registrar support
        ArcGISCategoryUnregistration(registerType)

        'Add any COM unregistration code after the ArcGISCategoryUnregistration() call

    End Sub

#Region "ArcGIS Component Category Registrar generated code"
    Private Shared Sub ArcGISCategoryRegistration(ByVal registerType As Type)
        Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID)
        ControlsCommands.Register(regKey)

    End Sub
    Private Shared Sub ArcGISCategoryUnregistration(ByVal registerType As Type)
        Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID)
        ControlsCommands.Unregister(regKey)

    End Sub

#End Region
#End Region

#Region "private members"
    Private m_hookHelper As IHookHelper
    Private m_engineEditor As IEngineEditor
    Private m_editLayer As IEngineEditLayers
    Private m_lSubType As Long

    Private m_InsertVertexCursor As System.Windows.Forms.Cursor
    Private m_DeleteVertexCursor As System.Windows.Forms.Cursor
#End Region

#Region "Constructor"
    Public Sub New()
        MyBase.New()

        'load the cursors
        Try
            m_InsertVertexCursor = New System.Windows.Forms.Cursor(Me.GetType().Assembly.GetManifestResourceStream("VertexCommands_VB.InsertVertexCursor.cur"))
            m_DeleteVertexCursor = New System.Windows.Forms.Cursor(Me.GetType().Assembly.GetManifestResourceStream("VertexCommands_VB.DeleteVertexCursor.cur"))

        Catch ex As Exception
            System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Cursor")
        End Try

    End Sub
#End Region

#Region "class overrides"

    Public Overrides Sub OnClick()
        'Find the Modify Feature task and set it as the current task
        Dim editTask As IEngineEditTask = m_engineEditor.GetTaskByUniqueName("ControlToolsEditing_ModifyFeatureTask")
        m_engineEditor.CurrentTask = editTask
    End Sub

    Public Overrides Sub OnCreate(ByVal hook As Object)
        If (m_hookHelper Is Nothing) Then m_hookHelper = New HookHelperClass

        If Not hook Is Nothing Then
            m_hookHelper.Hook = hook
            m_engineEditor = New EngineEditorClass() 'this class is a singleton
            m_editLayer = CType(m_engineEditor, IEngineEditLayers)
        End If

    End Sub

    Public Overrides ReadOnly Property Enabled() As Boolean
        Get
            'check whether Editing 
            If (m_engineEditor.EditState = esriEngineEditState.esriEngineStateNotEditing) Then
                Return False
            End If

            'check for appropriate geometry types
            Dim geomType As esriGeometryType = m_editLayer.TargetLayer.FeatureClass.ShapeType
            If Not (geomType = esriGeometryType.esriGeometryPolyline Or geomType = esriGeometryType.esriGeometryPolygon) Then
                Return False
            End If

            'check that only one feature is currently selected
            Dim featureSelection As IFeatureSelection = CType(m_editLayer.TargetLayer, IFeatureSelection)
            Dim selectionSet As ISelectionSet = featureSelection.SelectionSet
            If selectionSet.Count <> 1 Then
                Return False
            End If

            Return True

        End Get
    End Property

    Public Overrides Sub OnMouseUp(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Integer, ByVal Y As Integer)
        Try
            'set the x,y location which will be used by the out-of-the-box commands         
            Dim editsketch As IEngineEditSketch = m_engineEditor
            editsketch.SetEditLocation(X, Y)

            Dim t As Type = Nothing
            Dim o As Object = Nothing

            Select Case (m_lSubType)

                Case 1 'Insert Vertex using out-of-the-box command 

                    t = Type.GetTypeFromProgID("esriControls.ControlsEditingVertexInsertCommand.1")
                    o = Activator.CreateInstance(t)
                    Dim insertVertexCommand As ICommand = o

                    If Not insertVertexCommand Is Nothing Then
                        insertVertexCommand.OnCreate(m_hookHelper.Hook)
                        insertVertexCommand.OnClick()
                    End If


                Case 2 'Delete Vertex using out-of-the-box command

                    t = Type.GetTypeFromProgID("esriControls.ControlsEditingVertexDeleteCommand.1")
                    o = Activator.CreateInstance(t)
                    Dim deleteVertexCommand As ICommand = o

                    If Not deleteVertexCommand Is Nothing Then
                        deleteVertexCommand.OnCreate(m_hookHelper.Hook)
                        deleteVertexCommand.OnClick()
                    End If

            End Select

        Catch ex As Exception

            System.Diagnostics.Trace.WriteLine(ex.Message, "Unexpected Error")
        End Try

    End Sub
#End Region

#Region "ICommandSubType implementation"
    Public Function GetCount() As Integer Implements ESRI.ArcGIS.SystemUI.ICommandSubType.GetCount
        Try
            Return 2
        Catch ex As Exception
            System.Diagnostics.Debug.WriteLine(ex.Message())
        End Try
    End Function

    Public Sub SetSubType(ByVal SubType As Integer) Implements ESRI.ArcGIS.SystemUI.ICommandSubType.SetSubType
        Try

            m_lSubType = SubType

            'set a common Command category for all subtypes
            MyBase.m_category = "Vertex Cmds (VB)"

            Dim rm As ResourceManager = New ResourceManager("VertexCommands_VB.ResourceFile", Assembly.GetExecutingAssembly())

            Select Case (m_lSubType)

                Case 1 'Insert Vertex

                    MyBase.m_caption = rm.GetString("OOBInsertVertex_CommandCaption")
                    MyBase.m_message = rm.GetString("OOBInsertVertex_CommandMessage")
                    MyBase.m_toolTip = rm.GetString("OOBInsertVertex_CommandToolTip")
                    MyBase.m_name = "VertexCommands_VB_UsingOutOfBoxInsertVertex"
                    MyBase.m_cursor = m_InsertVertexCursor

                    Try
                        MyBase.m_bitmap = rm.GetObject("OOBInsertVertex")
                    Catch ex As Exception
                        System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap")
                    End Try


                Case 2 'Delete vertex

                    MyBase.m_caption = rm.GetString("OOBDeleteVertex_CommandCaption")
                    MyBase.m_message = rm.GetString("OOBDeleteVertex_CommandMessage")
                    MyBase.m_toolTip = rm.GetString("OOBDeleteVertex_CommandToolTip")
                    MyBase.m_name = "VertexCommands_VB_UsingOutOfBoxDeleteVertex"
                    MyBase.m_cursor = m_DeleteVertexCursor

                    Try
                        MyBase.m_bitmap = rm.GetObject("OOBDeleteVertex")
                    Catch ex As Exception
                        System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap")
                    End Try

            End Select

        Catch ex As Exception
            System.Diagnostics.Debug.WriteLine(ex.Message())
        End Try

    End Sub

#End Region

End Class