About the Custom map navigation commands Sample
[C#]
PanLeft.cs
using System; using ESRI.ArcGIS.Carto; using ESRI.ArcGIS.Geometry; using ESRI.ArcGIS.Controls; using ESRI.ArcGIS.SystemUI; using ESRI.ArcGIS.ADF.CATIDs; using System.Runtime.InteropServices; namespace PanZoom { [ClassInterface(ClassInterfaceType.None)] [Guid("139290CC-94E0-4d70-AF52-EBA664801E49")] public class PanLeft : ICommand { #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); ControlsCommands.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); ControlsCommands.Unregister(regKey); } #endregion #endregion [DllImport("gdi32.dll")] static extern bool DeleteObject(IntPtr hObject); private System.Drawing.Bitmap m_bitmap; private IntPtr m_hBitmap; private IHookHelper m_pHookHelper; public PanLeft() { string[] res = GetType().Assembly.GetManifestResourceNames(); if(res.GetLength(0) > 0) { m_bitmap = new System.Drawing.Bitmap(GetType().Assembly.GetManifestResourceStream(GetType(), "PanLeft.bmp")); if(m_bitmap != null) { m_bitmap.MakeTransparent(m_bitmap.GetPixel(1,1)); m_hBitmap = m_bitmap.GetHbitmap(); } } m_pHookHelper = new HookHelperClass (); } ~PanLeft() { if(m_hBitmap.ToInt32() != 0) DeleteObject(m_hBitmap); } #region ICommand Members public void OnClick() { if(m_pHookHelper == null) return; //Get the active view IActiveView pActiveView = (IActiveView) m_pHookHelper.FocusMap; //Get the extent IEnvelope pEnvelope = (IEnvelope) pActiveView.Extent; //Create a point to pan to IPoint pPoint; pPoint = new PointClass(); pPoint.X = ((pEnvelope.XMin + pEnvelope.XMax) / 2) - (pEnvelope.Height / (100 / GetPanFactor())); pPoint.Y = ((pEnvelope.YMin + pEnvelope.YMax) / 2); //Center the envelope on the point pEnvelope.CenterAt(pPoint); //Set the new extent pActiveView.Extent = pEnvelope; //Refresh the active view pActiveView.Refresh(); } private long GetPanFactor() { return 50; } public string Message { get { return "Pan display left by the pan factor percentage"; } } public int Bitmap { get { return m_hBitmap.ToInt32(); } } public void OnCreate(object hook) { m_pHookHelper.Hook = hook; } public string Caption { get { return "Pan Left"; } } public string Tooltip { get { return "Pan Left"; } } public int HelpContextID { get { // TODO: Add PanLeft.HelpContextID getter implementation return 0; } } public string Name { get { return "Sample_Pan/Zoom_Pan Left"; } } public bool Checked { get { return false; } } public bool Enabled { get { if(m_pHookHelper.FocusMap == null) return false; return true; } } public string HelpFile { get { // TODO: Add PanLeft.HelpFile getter implementation return null; } } public string Category { get { return "Sample_Pan/Zoom"; } } #endregion } }
[Visual Basic .NET]
PanLeft.vb
Imports ESRI.ArcGIS.Carto Imports ESRI.ArcGIS.GeomeTry Imports ESRI.ArcGIS.Controls Imports ESRI.ArcGIS.ADF.BaseClasses Imports ESRI.ArcGIS.ADF.CATIDs Imports System.Runtime.InteropServices <ComClass(PanLeft.ClassId, PanLeft.InterfaceId, PanLeft.EventsId)> _ Public NotInheritable Class PanLeft Inherits BaseCommand #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 = "7573B722-A058-4046-8341-96C5A0A0C539" Public Const InterfaceId As String = "75A51791-435B-4C15-B401-F199F3058BAC" Public Const EventsId As String = "696F603E-A35F-4122-AC5B-2CB921EBAFCB" #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" ''' <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) ControlsCommands.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) ControlsCommands.Unregister(regKey) End Sub #End Region #End Region Private m_pHookHelper As IHookHelper ' A creatable COM class must have a Public Sub New() ' with no parameters, otherwise, the class will not be ' registered in the COM registry and cannot be created ' via CreateObject. Public Sub New() MyBase.New() MyBase.m_category = "Sample_Pan_VBNET/Zoom" MyBase.m_caption = "Pan Left" MyBase.m_message = "Pan display left by the pan factor percentage" MyBase.m_toolTip = "Pan Left" MyBase.m_name = "Sample_Pan/Zoom_Pan Left" Dim res() As String = GetType(PanLeft).Assembly.GetManifestResourceNames() If res.GetLength(0) > 0 Then MyBase.m_bitmap = New System.Drawing.Bitmap(GetType(PanLeft).Assembly.GetManifestResourceStream("PanZoomVBNET.PanLeft.bmp")) End If m_pHookHelper = New HookHelperClass End Sub Public Overrides Sub OnClick() If m_pHookHelper Is Nothing Then Return End If 'Get the active view Dim pActiveView As IActiveView = CType(m_pHookHelper.FocusMap, IActiveView) 'Get the extent Dim pEnvelope As IEnvelope = CType(pActiveView.Extent, IEnvelope) 'Create a point to pan to Dim pPoint As IPoint pPoint = New PointClass pPoint.X = ((pEnvelope.XMin + pEnvelope.XMax) / 2) - (pEnvelope.Height / (100 / GetPanFactor())) pPoint.Y = ((pEnvelope.YMin + pEnvelope.YMax) / 2) 'Center the envelope on the point pEnvelope.CenterAt(pPoint) 'Set the new extent pActiveView.Extent = pEnvelope 'Refresh the active view pActiveView.Refresh() End Sub Private Function GetPanFactor() As Long Return 50 End Function Public Overrides Sub OnCreate(ByVal hook As Object) m_pHookHelper.Hook = hook End Sub End Class