About the Custom map navigation commands Sample
[C#]
PanDown.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("593EDF4F-D1FE-4a8d-8076-C3B583C37F6B")]
public class PanDown : 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 PanDown()
{
string[] res = GetType().Assembly.GetManifestResourceNames();
if(res.GetLength(0) > 0)
{
m_bitmap = new System.Drawing.Bitmap(GetType().Assembly.GetManifestResourceStream(GetType(), "PanDown.bmp"));
if(m_bitmap != null)
{
m_bitmap.MakeTransparent(m_bitmap.GetPixel(1,1));
m_hBitmap = m_bitmap.GetHbitmap();
}
}
m_pHookHelper = new HookHelperClass ();
}
~PanDown()
{
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;
pPoint.Y = ((pEnvelope.YMin + pEnvelope.YMax) / 2) - (pEnvelope.Height / (100 / GetPanFactor()));
//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 down 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 Down";
}
}
public string Tooltip
{
get
{
return "Pan Down";
}
}
public int HelpContextID
{
get
{
// TODO: Add PanDown.HelpContextID getter implementation
return 0;
}
}
public string Name
{
get
{
return "Sample_Pan/Zoom_Pan Down";
}
}
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 PanDown.HelpFile getter implementation
return null;
}
}
public string Category
{
get
{
return "Sample_Pan/Zoom";
}
}
#endregion
}
}
[Visual Basic .NET]
PanDown.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(PanDown.ClassId, PanDown.InterfaceId, PanDown.EventsId)> _
Public NotInheritable Class PanDown
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 = "D45D64D9-142F-443F-B257-9920580E3218"
Public Const InterfaceId As String = "4A6CDE97-AB5B-46E9-AF1D-DED31863F71E"
Public Const EventsId As String = "E9CBF10F-DD69-4256-BFF8-A45429696FF2"
#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 Down"
MyBase.m_message = "Pan display down by the pan factor percentage"
MyBase.m_toolTip = "Pan Down"
MyBase.m_name = "Sample_Pan/Zoom_Pan Down"
Dim res() As String = GetType(PanDown).Assembly.GetManifestResourceNames()
If res.GetLength(0) > 0 Then
MyBase.m_bitmap = New System.Drawing.Bitmap(GetType(PanDown).Assembly.GetManifestResourceStream("PanZoomVBNET.PanDown.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
pPoint.Y = ((pEnvelope.YMin + pEnvelope.YMax) / 2) - (pEnvelope.Height / (100 / GetPanFactor()))
'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