About the Graphics layers ToolControl Sample
[C#]
NewGraphicsLayerCmd.cs
using System;
using System.Drawing;
using System.Runtime.InteropServices;
using ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.ADF.CATIDs;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.Carto;
namespace GraphicsLayerToolControl
{
/// <summary>
/// this command adds a new graphics layer to the map and makes it the active graphics layer
/// </summary>
[Guid("ba7007d0-545a-49a8-87a1-b42e5f2d2262")]
[ClassInterface(ClassInterfaceType.None)]
[ProgId("GraphicsLayerToolControl.NewGraphicsLayerCmd")]
public sealed class NewGraphicsLayerCmd : 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);
ControlsCommands.Register(regKey);
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);
ControlsCommands.Unregister(regKey);
MxCommands.Unregister(regKey);
}
#endregion
#endregion
#region class members
private IHookHelper m_hookHelper = null;
#endregion
#region class constructor
public NewGraphicsLayerCmd()
{
base.m_category = ".NET Samples";
base.m_caption = "New Graphics Layer";
base.m_message = "Add new Graphics layer";
base.m_toolTip = "Add new Graphics layer";
base.m_name = "ToolControlSample_NewGraphicsLayerCmd";
try
{
string bitmapResourceName = GetType().Name + ".bmp";
base.m_bitmap = new Bitmap(GetType(), bitmapResourceName);
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap");
}
}
#endregion
#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;
if (m_hookHelper == null)
m_hookHelper = new HookHelperClass();
m_hookHelper.Hook = hook;
}
/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
//get the map
IMap map = m_hookHelper.FocusMap;
//count the graphics layers (will be used in order to name the new layer)
int graphicsLayerCoount = 0;
for (int i = 0; i < map.LayerCount; i++)
{
if (map.get_Layer(i) is IGraphicsLayer)
graphicsLayerCoount++;
}
//create a new graphics layer
IGraphicsLayer graphicsLayer = new CompositeGraphicsLayerClass();
//name the new layer
((ILayer)graphicsLayer).Name = "Graphics Layer " + graphicsLayerCoount.ToString();
//make the new graphics layer the active graphics layer
map.ActiveGraphicsLayer = (ILayer)graphicsLayer;
//add the new layer to the map
map.AddLayer((ILayer)graphicsLayer);
}
#endregion
}
}
[Visual Basic .NET]
NewGraphicsLayerCmd.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.Controls
Imports ESRI.ArcGIS.Carto
''' <summary>
''' this command adds a new graphics layer to the map and makes it the active graphics layer
''' </summary>
<Guid("ba7007d0-545a-49a8-87a1-b42e5f2d2262"), ClassInterface(ClassInterfaceType.None), ProgId("GraphicsLayerToolControl.NewGraphicsLayerCmd")> _
Public NotInheritable Class NewGraphicsLayerCmd : 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)
ControlsCommands.Register(regKey)
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)
ControlsCommands.Unregister(regKey)
MxCommands.Unregister(regKey)
End Sub
#End Region
#End Region
#Region "class members"
Private m_hookHelper As IHookHelper = Nothing
#End Region
#Region "class constructor"
Public Sub New()
MyBase.m_category = ".NET Samples"
MyBase.m_caption = "New Graphics Layer"
MyBase.m_message = "Add new Graphics layer"
MyBase.m_toolTip = "Add new Graphics layer"
MyBase.m_name = "ToolControlSample_NewGraphicsLayerCmd"
Try
Dim bitmapResourceName As String = Me.GetType().Name & ".bmp"
MyBase.m_bitmap = New Bitmap(Me.GetType(), bitmapResourceName)
Catch ex As Exception
System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap")
End Try
End Sub
#End Region
#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
If m_hookHelper Is Nothing Then
m_hookHelper = New HookHelperClass()
End If
m_hookHelper.Hook = hook
End Sub
''' <summary>
''' Occurs when this command is clicked
''' </summary>
Public Overrides Sub OnClick()
'get the map
Dim map As IMap = m_hookHelper.FocusMap
'count the graphics layers (will be used in order to name the new layer)
Dim graphicsLayerCoount As Integer = 0
Dim i As Integer = 0
Do While i < map.LayerCount
If TypeOf map.Layer(i) Is IGraphicsLayer Then
graphicsLayerCoount += 1
End If
i += 1
Loop
'create a new graphics layer
Dim graphicsLayer As IGraphicsLayer = New CompositeGraphicsLayerClass()
'name the new layer
CType(graphicsLayer, ILayer).Name = "Graphics Layer " & graphicsLayerCoount.ToString()
'make the new graphics layer the active graphics layer
map.ActiveGraphicsLayer = CType(graphicsLayer, ILayer)
'add the new layer to the map
map.AddLayer(CType(graphicsLayer, ILayer))
End Sub
#End Region
End Class