About the Create a custom selection extension by extending ArcObjects Sample
[C#]
ToggleDockWinBtn.cs
using System; using System.Drawing; using System.Runtime.InteropServices; using ESRI.ArcGIS.ADF.BaseClasses; using ESRI.ArcGIS.ADF.CATIDs; using ESRI.ArcGIS.Framework; using ESRI.ArcGIS.ArcMapUI; namespace SelectionCOMSample { /// <summary> /// Summary description for ToggleDockWinBtn. /// </summary> [Guid("26cd6ddc-c2d0-4102-a853-5f7043c6e797")] [ClassInterface(ClassInterfaceType.None)] [ProgId("SelectionCOMSample.ToggleDockWinBtn")] public sealed class ToggleDockWinBtn : BaseCommand { #region COM Registration Function(s) [ComRegisterFunction()] [ComVisible(false)] static void RegisterFunction(Type registerType) { // Required for ArcGIS Component Category Registrar support ArcGISCategoryRegistration(registerType); // // TODO: Add any COM registration code here // } [ComUnregisterFunction()] [ComVisible(false)] static void UnregisterFunction(Type registerType) { // Required for ArcGIS Component Category Registrar support ArcGISCategoryUnregistration(registerType); // // TODO: Add any COM unregistration code here // } #region ArcGIS Component Category Registrar generated code /// <summary> /// Required method for ArcGIS Component Category registration - /// Do not modify the contents of this method with the code editor. /// </summary> private static void ArcGISCategoryRegistration(Type registerType) { string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID); MxCommands.Register(regKey); } /// <summary> /// Required method for ArcGIS Component Category unregistration - /// Do not modify the contents of this method with the code editor. /// </summary> private static void ArcGISCategoryUnregistration(Type registerType) { string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID); MxCommands.Unregister(regKey); } #endregion #endregion private IApplication m_application; private SelectionExtension m_mainExtension; private IDockableWindow m_dockWindow; public ToggleDockWinBtn() { base.m_category = "Developer Samples"; base.m_caption = "Toggle Dockable Window C#"; base.m_message = "Toggle dockable window C#."; base.m_toolTip = "Toggle dockable window C#.\r\nSelection Sample Extension needs to be turned on in Extensions dialog."; base.m_name = "ESRI_SelectionCOMSample_ToggleDockWinBtn"; try { base.m_bitmap = new Bitmap(GetType().Assembly.GetManifestResourceStream("SelectionCOMSample.Images.ToggleDockWinBtn.png")); } catch (Exception ex) { System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap"); } } #region Overriden Class Methods /// <summary> /// Occurs when this command is created /// </summary> /// <param name="hook">Instance of the application</param> public override void OnCreate(object hook) { if (hook == null) return; m_application = hook as IApplication; //Disable if it is not ArcMap if (hook is IMxApplication) base.m_enabled = true; else base.m_enabled = false; m_mainExtension = SelectionExtension.GetExtension(); if (m_mainExtension != null) m_dockWindow = m_mainExtension.GetSelectionCountWindow; } /// <summary> /// Occurs when this command is clicked /// </summary> public override void OnClick() { if (m_dockWindow == null) return; m_dockWindow.Show(!m_dockWindow.IsVisible()); } public override bool Enabled { get { if (m_mainExtension == null || m_dockWindow == null) return false; else return m_mainExtension.IsExtensionEnabled; } } #endregion } }
[Visual Basic .NET]
ToggleDockWinBtn.vb
Imports Microsoft.VisualBasic Imports System Imports System.Drawing Imports System.Runtime.InteropServices Imports ESRI.ArcGIS.ADF.BaseClasses Imports ESRI.ArcGIS.ADF.CATIDs Imports ESRI.ArcGIS.Framework Imports ESRI.ArcGIS.ArcMapUI Namespace SelectionCOMSample ''' <summary> ''' Summary description for ToggleDockWinBtn. ''' </summary> <Guid("26cd6ddc-c2d0-4102-a853-5f7043c6e797"), ClassInterface(ClassInterfaceType.None), ProgId("SelectionCOMSample.ToggleDockWinBtn")> _ Public NotInheritable Class ToggleDockWinBtn Inherits BaseCommand #Region "COM Registration Function(s)" <ComRegisterFunction(), ComVisible(False)> _ Private Shared Sub RegisterFunction(ByVal registerType As Type) ' Required for ArcGIS Component Category Registrar support ArcGISCategoryRegistration(registerType) ' ' TODO: Add any COM registration code here ' End Sub <ComUnregisterFunction(), ComVisible(False)> _ Private Shared Sub UnregisterFunction(ByVal registerType As Type) ' Required for ArcGIS Component Category Registrar support ArcGISCategoryUnregistration(registerType) ' ' TODO: Add any COM unregistration code here ' End Sub #Region "ArcGIS Component Category Registrar generated code" ''' <summary> ''' Required method for ArcGIS Component Category registration - ''' Do not modify the contents of this method with the code editor. ''' </summary> Private Shared Sub ArcGISCategoryRegistration(ByVal registerType As Type) Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID) MxCommands.Register(regKey) End Sub ''' <summary> ''' Required method for ArcGIS Component Category unregistration - ''' Do not modify the contents of this method with the code editor. ''' </summary> Private Shared Sub ArcGISCategoryUnregistration(ByVal registerType As Type) Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID) MxCommands.Unregister(regKey) End Sub #End Region #End Region Private m_application As IApplication Private m_mainExtension As SelectionExtension Private m_dockWindow As IDockableWindow Public Sub New() MyBase.m_category = "Developer Samples" MyBase.m_caption = "Toggle Dockable Window VB.NET" MyBase.m_message = "Toggle dockable window VB.NET." MyBase.m_toolTip = "Toggle dockable window VB.NET." & Constants.vbCrLf & "Selection Sample Extension needs to be turned on in Extensions dialog." MyBase.m_name = "ESRI_SelectionCOMSample_ToggleDockWinBtn" Try MyBase.m_bitmap = New Bitmap(Me.GetType().Assembly.GetManifestResourceStream("ToggleDockWinBtn.png")) Catch ex As Exception System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap") End Try End Sub #Region "Overridden Class Methods" ''' <summary> ''' Occurs when this command is created ''' </summary> ''' <param name="hook">Instance of the application</param> Public Overrides Sub OnCreate(ByVal hook As Object) If hook Is Nothing Then Return End If m_application = TryCast(hook, IApplication) 'Disable if it is not ArcMap If TypeOf hook Is IMxApplication Then MyBase.m_enabled = True Else MyBase.m_enabled = False End If m_mainExtension = SelectionExtension.GetExtension() If m_mainExtension IsNot Nothing Then m_dockWindow = m_mainExtension.GetSelectionCountWindow End If End Sub ''' <summary> ''' Occurs when this command is clicked ''' </summary> Public Overrides Sub OnClick() If m_dockWindow Is Nothing Then Return End If m_dockWindow.Show((Not m_dockWindow.IsVisible())) End Sub Public Overrides ReadOnly Property Enabled() As Boolean Get If m_mainExtension Is Nothing OrElse m_dockWindow Is Nothing Then Return False Else Return m_mainExtension.IsExtensionEnabled End If End Get End Property #End Region End Class End Namespace