RSSLayerProperties.vb
RSS Weather layer
RSSLayerProperties.vb
' Copyright 2006 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 Microsoft.VisualBasic
Imports System
Imports System.Drawing
Imports System.Runtime.InteropServices
Imports System.Messaging
Imports System.Windows.Forms
Imports ESRI.ArcGIS.ADF.BaseClasses
Imports ESRI.ArcGIS.ADF.CATIDs
Imports ESRI.ArcGIS.Controls
Imports ESRI.ArcGIS.Carto

  ''' <summary>
  ''' Summary description for RSSLayerProperties.
  ''' </summary>
  <Guid("C8442468-53EE-40d7-A241-896FB8B2E027"), ClassInterface(ClassInterfaceType.None), ProgId("RSSWeatherLayer.RSSLayerProperties"), ComVisible(True)> _
  Public NotInheritable Class RSSLayerProperties : 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)

  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

  Public Sub New()
    MyBase.m_category = "Weather"
    MyBase.m_caption = "Weather Layer properties"
    MyBase.m_message = "Show RSS Weather Layer properties"
    MyBase.m_toolTip = "Show RSS Weather Layer properties"
    MyBase.m_name = MyBase.m_category & "_" & MyBase.m_caption

    Try
    '
    ' TODO: change bitmap name if necessary
    '
    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

  #Region "Overriden 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 m_pHookHelper Is Nothing Then
    m_pHookHelper = New HookHelperClass()
    End If

    m_pHookHelper.Hook = hook

    ' TODO:  Add RSSLayerProperties.OnCreate implementation
  End Sub

  ''' <summary>
  ''' Occurs when this command is clicked
  ''' </summary>
  Public Overrides Sub OnClick()
    Try
    'search for the weatherLayer first
    Dim layer As ILayer = Nothing
    Dim RSSLayer As RSSWeatherLayerClass = Nothing

    If m_pHookHelper.FocusMap.LayerCount = 0 Then
      Return
    End If

      Dim layers As IEnumLayer = m_pHookHelper.FocusMap.Layers(Nothing, False)
    layers.Reset()
    layer = layers.Next()
    Do While Not layer Is Nothing
      If TypeOf layer Is RSSWeatherLayerClass Then
      RSSLayer = CType(layer, RSSWeatherLayerClass)
      Exit Do
      End If
      layer = layers.Next()
    Loop

    'In case that the weather layer wasn't found,just return
    If Nothing Is RSSLayer Then
      Return
    End If


    'Launch the layer's properties
    Dim typ As Type
    Dim obj As Object
    Dim g As Guid()

    ' METHOD 1: Instantiating a COM object and displaying its property pages
    ' ONLY WORKS ON TRUE COM OBJECTS!  .NET objects that have rolled their own
    ' ISpecifyPropertyPages implementation will error out when you try to cast
    ' the instantiated object to your own ISpecifyPropertyPages implementation.

    ' Get the typeinfo for the ActiveX common dialog control
    typ = Type.GetTypeFromProgID("MSComDlg.CommonDialog")

    ' Create an instance of the control.  We pass it to the property frame function
    ' so the property pages have an object from which to get current settings and apply
    ' new settings.
    obj = Activator.CreateInstance(typ)
    ' This handy function calls IPersistStreamInit->New on COM objects to initialize them
    ActiveXMessageFormatter.InitStreamedObject(obj)

    ' Get the property pages for the control using the direct CAUUID method
    ' This only works for true COM objects and I demonstrate it here only
    ' to show how it is done.  Use the static method
    ' PropertyPage.GetPagesForType() method for real-world use.
    Dim pag As ISpecifyPropertyPages = CType(obj, ISpecifyPropertyPages)
    Dim cau As CAUUID = New CAUUID(0)
    pag.GetPages(cau)
    g = cau.GetPages()

    ' Instantiating a .NET object and displaying its property pages
    ' WORKS ON ALL OBJECTS, .NET or COM    

    ' Create an instance of the .NET control, MyUserControl
    typ = Type.GetTypeFromProgID("RSSWeatherLayer.PropertySheet")

    ' Retrieve the pages for the control
    g = PropertyPage.GetPagesForType(typ)

    ' Create an instance of the control that we can give to the property pages
    obj = Activator.CreateInstance(typ)

    'add the RSS layer to the property-sheet control
    CType(obj, PropertySheet).RSSWatherLayer = RSSLayer

    ' Display the OLE Property page for the control
    Dim items As Object() = New Object() { obj }

    PropertyPage.CreatePropertyFrame(IntPtr.Zero, 500, 500, "RSS Layer properties", items, g)
    Catch ex As Exception
    System.Diagnostics.Trace.WriteLine(ex.Message)
    End Try
  End Sub

  #End Region
  End Class