Cursor Cursor Cursor Cursor Constructors

定義

オーバーロード

Cursor(IntPtr) Cursor(IntPtr) Cursor(IntPtr) Cursor(IntPtr)

指定した Windows ハンドルで Cursor クラスの新しいインスタンスを初期化します。Initializes a new instance of the Cursor class from the specified Windows handle.

Cursor(Stream) Cursor(Stream) Cursor(Stream)

指定したデータ ストリームで Cursor クラスの新しいインスタンスを初期化します。Initializes a new instance of the Cursor class from the specified data stream.

Cursor(String) Cursor(String) Cursor(String) Cursor(String)

指定したファイルで Cursor クラスの新しいインスタンスを初期化します。Initializes a new instance of the Cursor class from the specified file.

Cursor(Type, String) Cursor(Type, String) Cursor(Type, String)

指定したリソースの種類を使用し、指定したリソースから Cursor クラスの新しいインスタンスを初期化します。Initializes a new instance of the Cursor class from the specified resource with the specified resource type.

Cursor(IntPtr) Cursor(IntPtr) Cursor(IntPtr) Cursor(IntPtr)

指定した Windows ハンドルで Cursor クラスの新しいインスタンスを初期化します。Initializes a new instance of the Cursor class from the specified Windows handle.

public:
 Cursor(IntPtr handle);
public Cursor (IntPtr handle);
new System.Windows.Forms.Cursor : nativeint -> System.Windows.Forms.Cursor
Public Sub New (handle As IntPtr)

パラメーター

handle
IntPtr IntPtr IntPtr IntPtr

作成するカーソルの Windows ハンドルを表す IntPtrAn IntPtr that represents the Windows handle of the cursor to create.

例外

次のコード例からカーソルを作成する、CurrentカーソルのHandle、その位置とクリッピング四角形を変更します。The following code example creates a cursor from the Current cursor's Handle, changes its position and clipping rectangle. 結果を上から、コードが実行されるが左側の 50 ピクセルにカーソルが移動されます。The result is the cursor will move up and to the left 50 pixels from where it is when the code is executed. さらに、カーソルのクリッピング四角形をフォームの範囲を変更 (既定では、ユーザーの画面全体)。Additionally, the cursor's clipping rectangle is changed to the bounds of the form (by default it is the user's whole screen). この例が必要です、FormButtonをクリックしたときに、このコードを呼び出します。This example requires that you have a Form and a Button to call this code when it is clicked.

void MoveCursor()
{
   // Set the Current cursor, move the cursor's Position,
   // and set its clipping rectangle to the form.

   this->Cursor = gcnew System::Windows::Forms::Cursor( ::Cursor::Current->Handle );
   ::Cursor::Position = Point(::Cursor::Position.X - 50,::Cursor::Position.Y - 50);
   ::Cursor::Clip = Rectangle(this->Location,this->Size);

}
private void MoveCursor()
{
   // Set the Current cursor, move the cursor's Position,
   // and set its clipping rectangle to the form. 

   this.Cursor = new Cursor(Cursor.Current.Handle);
   Cursor.Position = new Point(Cursor.Position.X - 50, Cursor.Position.Y - 50);
   Cursor.Clip = new Rectangle(this.Location, this.Size);
}
Private Sub MoveCursor()
   ' Set the Current cursor, move the cursor's Position,
   ' and set its clipping rectangle to the form. 

   Me.Cursor = New Cursor(Cursor.Current.Handle)
   Cursor.Position = New Point(Cursor.Position.X - 50, Cursor.Position.Y - 50)
   Cursor.Clip = New Rectangle(Me.Location, Me.Size)
End Sub

注釈

それが済んだら、カーソル ハンドルを解放する必要があります。You must free the cursor handle when you are done with it. リソースの破棄に関する詳細については、次を参照してください。アンマネージ リソースのクリーンアップします。For more information about disposing of resources, see Cleaning Up Unmanaged Resources.

Cursor(Stream) Cursor(Stream) Cursor(Stream)

指定したデータ ストリームで Cursor クラスの新しいインスタンスを初期化します。Initializes a new instance of the Cursor class from the specified data stream.

public:
 Cursor(System::IO::Stream ^ stream);
public Cursor (System.IO.Stream stream);
new System.Windows.Forms.Cursor : System.IO.Stream -> System.Windows.Forms.Cursor

パラメーター

stream
Stream Stream Stream Stream

Cursor の読み込み元のデータ ストリーム。The data stream to load the Cursor from.

次のコード例から、カーソルの読み込み、Streamによって作成された、OpenFileのメソッド、OpenFileDialogします。The following code example loads a cursor from a Stream created by the OpenFile method of an OpenFileDialog. メソッドが呼び出されたときに、OpenFileDialogユーザーに表示されると。When the method is called, an OpenFileDialog is displayed to the user and when a. CUR ファイルを選択し、ダイアログを閉じる、ファイルが開かれると、Stream返されるを作成するために使用、Cursorします。CUR file is selected and the dialog closed, the file is opened and the Stream returned is used to create a Cursor.

private:
   void SetCursor()
   {
      // Display an OpenFileDialog so the user can select a cursor.
      OpenFileDialog^ openFileDialog1 = gcnew OpenFileDialog;
      openFileDialog1->Filter = "Cursor Files|*.cur";
      openFileDialog1->Title = "Select a Cursor File";
      openFileDialog1->ShowDialog();

      // If a .cur file was selected, open it.
      if (  !openFileDialog1->FileName->Equals( "" ) )
      {
         // Assign the cursor in the stream to the form's Cursor property.
         this->Cursor = gcnew System::Windows::Forms::Cursor( openFileDialog1->OpenFile() );
      }
   }
private void SetCursor()
{
   // Display an OpenFileDialog so the user can select a cursor.
   OpenFileDialog openFileDialog1 = new OpenFileDialog();
   openFileDialog1.Filter = "Cursor Files|*.cur";
   openFileDialog1.Title = "Select a Cursor File";
   openFileDialog1.ShowDialog();

   // If a .cur file was selected, open it.
   if(openFileDialog1.FileName != "")
   {
      // Assign the cursor in the stream to the form's Cursor property.
      this.Cursor = new Cursor(openFileDialog1.OpenFile());
   }
}
Private Sub SetCursor()
   ' Display an OpenFileDialog so the user can select a Cursor.
   Dim openFileDialog1 As New OpenFileDialog()
   openFileDialog1.Filter = "Cursor Files|*.cur"
   openFileDialog1.Title = "Select a Cursor File"
   openFileDialog1.ShowDialog()
         
   ' If a .cur file was selected, open it.
   If openFileDialog1.FileName <> "" Then
      ' Assign the cursor in the stream to the form's Cursor property.
      Me.Cursor = New Cursor(openFileDialog1.OpenFile())
   End If
End Sub     

注釈

指定されたデータ ストリームstreamカーソル (.cur) ファイルを含める必要があります。The data stream specified by stream must contain a cursor (.cur) file.

注意

アニメーション化されたカーソル (.ani ファイル) がサポートされていない、Cursorクラス。Animated cursors (.ani files) are not supported by the Cursor class.

こちらもご覧ください

Cursor(String) Cursor(String) Cursor(String) Cursor(String)

指定したファイルで Cursor クラスの新しいインスタンスを初期化します。Initializes a new instance of the Cursor class from the specified file.

public:
 Cursor(System::String ^ fileName);
public Cursor (string fileName);
new System.Windows.Forms.Cursor : string -> System.Windows.Forms.Cursor
Public Sub New (fileName As String)

パラメーター

fileName
String String String String

読み込むカーソル ファイル。The cursor file to load.

次のコード例には顧客情報が表示されます、TreeViewコントロール。The following code example displays customer information in a TreeView control. ツリーのルート ノードは、顧客名を表示し、子ツリー ノードは、各顧客に割り当てられている注文番号を表示します。The root tree nodes display customer names, and the child tree nodes display the order numbers assigned to each customer. この例では、1,000 人の顧客が 15 の注文で表示されます。In this example, 1,000 customers are displayed with 15 orders each. 描画、TreeViewが抑制を使用して、BeginUpdateEndUpdateメソッド、および待機Cursorが表示されます中に、TreeViewを作成し、描画、TreeNodeオブジェクト。The repainting of the TreeView is suppressed by using the BeginUpdate and EndUpdate methods, and a wait Cursor is displayed while the TreeView creates and paints the TreeNode objects. この例が必要です、Customerオブジェクトのコレクションを保持できるOrderオブジェクト。This example requires that you have a Customer object that can hold a collection of Order objects. インスタンスを作成することも必要です、TreeViewの control 権限、Formします。It also requires that you have created an instance of a TreeView control on a Form.

// The basic Customer class.
ref class Customer: public System::Object
{
private:
   String^ custName;

protected:
   ArrayList^ custOrders;

public:
   Customer( String^ customername )
   {
      custName = "";
      custOrders = gcnew ArrayList;
      this->custName = customername;
   }


   property String^ CustomerName 
   {
      String^ get()
      {
         return this->custName;
      }

      void set( String^ value )
      {
         this->custName = value;
      }

   }

   property ArrayList^ CustomerOrders 
   {
      ArrayList^ get()
      {
         return this->custOrders;
      }

   }

};


// End Customer class
// The basic customer Order class.
ref class Order: public System::Object
{
private:
   String^ ordID;

public:
   Order( String^ orderid )
   {
      ordID = "";
      this->ordID = orderid;
   }


   property String^ OrderID 
   {
      String^ get()
      {
         return this->ordID;
      }

      void set( String^ value )
      {
         this->ordID = value;
      }

   }

};
// End Order class



void FillMyTreeView()
{
   // Add customers to the ArrayList of Customer objects.
   for ( int x = 0; x < 1000; x++ )
   {
      customerArray->Add( gcnew Customer( "Customer " + x ) );
   }
   
   // Add orders to each Customer object in the ArrayList.
   IEnumerator^ myEnum = customerArray->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      Customer^ customer1 = safe_cast<Customer^>(myEnum->Current);
      for ( int y = 0; y < 15; y++ )
      {
         customer1->CustomerOrders->Add( gcnew Order( "Order " + y ) );
      }
   }

   // Display a wait cursor while the TreeNodes are being created.
   ::Cursor::Current = gcnew System::Windows::Forms::Cursor( "MyWait.cur" );
   
   // Suppress repainting the TreeView until all the objects have been created.
   treeView1->BeginUpdate();
   
   // Clear the TreeView each time the method is called.
   treeView1->Nodes->Clear();
   
   // Add a root TreeNode for each Customer object in the ArrayList.
   myEnum = customerArray->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      Customer^ customer2 = safe_cast<Customer^>(myEnum->Current);
      treeView1->Nodes->Add( gcnew TreeNode( customer2->CustomerName ) );
      
      // Add a child treenode for each Order object in the current Customer object.
      IEnumerator^ myEnum = customer2->CustomerOrders->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         Order^ order1 = safe_cast<Order^>(myEnum->Current);
         treeView1->Nodes[ customerArray->IndexOf( customer2 ) ]->Nodes->Add( gcnew TreeNode( customer2->CustomerName + "." + order1->OrderID ) );
      }
   }
   
   // Reset the cursor to the default for all controls.
   ::Cursor::Current = Cursors::Default;
   
   // Begin repainting the TreeView.
   treeView1->EndUpdate();
}

// The basic Customer class.
public class Customer : System.Object
{
   private string custName = "";
   protected ArrayList custOrders = new ArrayList();

   public Customer(string customername)
   {
      this.custName = customername;
   }

   public string CustomerName
   {      
      get{return this.custName;}
      set{this.custName = value;}
   }

   public ArrayList CustomerOrders 
   {
      get{return this.custOrders;}
   }

} // End Customer class 


// The basic customer Order class.
public class Order : System.Object
{
   private string ordID = "";

   public Order(string orderid)
   {
      this.ordID = orderid;
   }

   public string OrderID
   {      
      get{return this.ordID;}
      set{this.ordID = value;}
   }

} // End Order class

// Create a new ArrayList to hold the Customer objects.
private ArrayList customerArray = new ArrayList(); 

private void FillMyTreeView()
{
   // Add customers to the ArrayList of Customer objects.
   for(int x=0; x<1000; x++)
   {
      customerArray.Add(new Customer("Customer" + x.ToString()));
   }

   // Add orders to each Customer object in the ArrayList.
   foreach(Customer customer1 in customerArray)
   {
      for(int y=0; y<15; y++)
      {
         customer1.CustomerOrders.Add(new Order("Order" + y.ToString()));    
      }
   }

   // Display a wait cursor while the TreeNodes are being created.
   Cursor.Current = new Cursor("MyWait.cur");
        
   // Suppress repainting the TreeView until all the objects have been created.
   treeView1.BeginUpdate();

   // Clear the TreeView each time the method is called.
   treeView1.Nodes.Clear();

   // Add a root TreeNode for each Customer object in the ArrayList.
   foreach(Customer customer2 in customerArray)
   {
      treeView1.Nodes.Add(new TreeNode(customer2.CustomerName));
          
      // Add a child treenode for each Order object in the current Customer object.
      foreach(Order order1 in customer2.CustomerOrders)
      {
         treeView1.Nodes[customerArray.IndexOf(customer2)].Nodes.Add(
           new TreeNode(customer2.CustomerName + "." + order1.OrderID));
      }
   }

   // Reset the cursor to the default for all controls.
   Cursor.Current = Cursors.Default;

   // Begin repainting the TreeView.
   treeView1.EndUpdate();
}
Public Class Customer
   Inherits [Object]
   Private custName As String = ""
   Friend custOrders As New ArrayList()

   Public Sub New(ByVal customername As String)
      Me.custName = customername
   End Sub

   Public Property CustomerName() As String
      Get
         Return Me.custName
      End Get
      Set(ByVal Value As String)
         Me.custName = Value
      End Set
   End Property

   Public ReadOnly Property CustomerOrders() As ArrayList
      Get
         Return Me.custOrders
      End Get
   End Property
End Class 'End Customer class


Public Class Order
   Inherits [Object]
   Private ordID As String

   Public Sub New(ByVal orderid As String)
      Me.ordID = orderid
   End Sub 'New

   Public Property OrderID() As String
      Get
         Return Me.ordID
      End Get
      Set(ByVal Value As String)
         Me.ordID = Value
      End Set
   End Property
End Class ' End Order class

' Create a new ArrayList to hold the Customer objects.
Private customerArray As New ArrayList()

Private Sub FillMyTreeView()
   ' Add customers to the ArrayList of Customer objects.
   Dim x As Integer
   For x = 0 To 999
      customerArray.Add(New Customer("Customer" + x.ToString()))
   Next x

   ' Add orders to each Customer object in the ArrayList.
   Dim customer1 As Customer
   For Each customer1 In customerArray
      Dim y As Integer
      For y = 0 To 14
         customer1.CustomerOrders.Add(New Order("Order" + y.ToString()))
      Next y
   Next customer1

   ' Display a wait cursor while the TreeNodes are being created.
   Cursor.Current = New Cursor("MyWait.cur")

   ' Suppress repainting the TreeView until all the objects have been created.
   treeView1.BeginUpdate()

   ' Clear the TreeView each time the method is called.
   treeView1.Nodes.Clear()

   ' Add a root TreeNode for each Customer object in the ArrayList.
   Dim customer2 As Customer
   For Each customer2 In customerArray
      treeView1.Nodes.Add(New TreeNode(customer2.CustomerName))

      ' Add a child TreeNode for each Order object in the current Customer object.
      Dim order1 As Order
      For Each order1 In customer2.CustomerOrders
         treeView1.Nodes(customerArray.IndexOf(customer2)).Nodes.Add( _
    New TreeNode(customer2.CustomerName + "." + order1.OrderID))
      Next order1
   Next customer2

   ' Reset the cursor to the default for all controls.
   Cursor.Current = System.Windows.Forms.Cursors.Default

   ' Begin repainting the TreeView.
   treeView1.EndUpdate()
End Sub 'FillMyTreeView

注釈

fileNameパラメーターは、標準的なカーソル (.cur) ファイルを参照する必要があります。The fileName parameter must reference a standard cursor (.cur) file.

注意

アニメーション化されたカーソル (.ani ファイル) がサポートされていない、Cursorクラス。Animated cursors (.ani files) are not supported by the Cursor class.

Cursor(Type, String) Cursor(Type, String) Cursor(Type, String)

指定したリソースの種類を使用し、指定したリソースから Cursor クラスの新しいインスタンスを初期化します。Initializes a new instance of the Cursor class from the specified resource with the specified resource type.

public:
 Cursor(Type ^ type, System::String ^ resource);
public Cursor (Type type, string resource);
new System.Windows.Forms.Cursor : Type * string -> System.Windows.Forms.Cursor

パラメーター

type
Type Type Type Type

リソース TypeThe resource Type.

resource
String String String String

リソースの名前。The name of the resource.

次のコード例を使用してカスタム カーソルを使用する方法を示すフォームが表示されます、Cursorコンス トラクター。The following code example displays a form that demonstrates using a custom cursor by using the Cursor constructor. カスタムCursorアプリケーションのリソース ファイルに埋め込まれています。The custom Cursor is embedded in the application's resource file. 例では、カーソルをという名前のカーソル ファイルに含まれている必要があります。MyCursor.curします。The example requires that you have a cursor contained in a cursor file named MyCursor.cur. コマンドラインを使用してこのサンプルをコンパイルするには、次のフラグを含めます。 /res:MyCursor.Cur, CustomCursor.MyCursor.CurTo compile this example using the command line, include the following flag: /res:MyCursor.Cur, CustomCursor.MyCursor.Cur

using System;
using System.Drawing;
using System.Windows.Forms;

namespace CustomCursor
{
    public class Form1 : System.Windows.Forms.Form
    {
        [STAThread]
        static void Main() 
        {
            Application.Run(new Form1());
        }

        public Form1()
        {
            this.ClientSize = new System.Drawing.Size(292, 266);
            this.Text = "Cursor Example";
            
            // The following generates a cursor from an embedded resource.
            
            // To add a custom cursor, create a bitmap
            //        1. Add a new cursor file to your project: 
            //                Project->Add New Item->General->Cursor File

            // --- To make the custom cursor an embedded resource  ---
            
            // In Visual Studio:
            //        1. Select the cursor file in the Solution Explorer
            //        2. Choose View->Properties.
            //        3. In the properties window switch "Build Action" to "Embedded Resources"

            // On the command line:
            //        Add the following flag:
            //            /res:CursorFileName.cur,Namespace.CursorFileName.cur
            //        
            //        Where "Namespace" is the namespace in which you want to use the cursor
            //        and   "CursorFileName.cur" is the cursor filename.

            // The following line uses the namespace from the passed-in type
            // and looks for CustomCursor.MyCursor.Cur in the assemblies manifest.
	    // NOTE: The cursor name is acase sensitive.
            this.Cursor = new Cursor(GetType(), "MyCursor.cur");  
           
        }
    }
}
Imports System
Imports System.Drawing
Imports System.Windows.Forms

Namespace CustomCursor
   
   Public Class Form1
      Inherits System.Windows.Forms.Form
      
      <System.STAThread()> _
      Public Shared Sub Main()
         System.Windows.Forms.Application.Run(New Form1())
      End Sub 'Main

      Public Sub New()

         Me.ClientSize = New System.Drawing.Size(292, 266)
         Me.Text = "Cursor Example"
         
        ' The following generates a cursor from an embedded resource.
         
        'To add a custom cursor, create a bitmap
        '       1. Add a new cursor file to your project: 
        '               Project->Add New Item->General->Cursor File

        '--- To make the custom cursor an embedded resource  ---

        'In Visual Studio:
        '       1. Select the cursor file in the Solution Explorer
        '       2. Choose View->Properties.
        '       3. In the properties window switch "Build Action" to "Embedded Resources"

        'On the command line:
        '       Add the following flag:
        '           /res:CursorFileName.cur,Namespace.CursorFileName.cur

        '       Where "Namespace" is the namespace in which you want to use the cursor
        '       and   "CursorFileName.cur" is the cursor filename.

        'The following line uses the namespace from the passed-in type
        'and looks for CustomCursor.MyCursor.cur in the assemblies manifest.
        'NOTE: The cursor name is acase sensitive.
        Me.Cursor = New Cursor(Me.GetType(), "MyCursor.cur")
      End Sub 'New       
   End Class 'Form1
End Namespace 'CustomCursor

注釈

次にカーソルをアプリケーション内のリソースとして埋め込む方法の例を示します。The following is an example of how to embed a cursor as a resource within your application. リソースを埋め込むには、リソース名の後にコンマ、し、そのアセンブリの完全なパスを参照します。To embed the resource, reference the resource name followed by a comma, then its full assembly path. 埋め込みリソースから、カーソルを読み込む方法について説明する例を参照してください。See the Example section to learn how to load the cursor from the embedded resource.

Using the C# compiler:  
csc /resource:"MyWaitCursor.cur","MyCursors.MyWaitCursor.cur" MyCursor.cs  
Using the Visual Basic compiler:  
vbc /resource:"MyWaitCursor.cur","MyCursors.MyWaitCursor.cur" MyCursor.vb  

注意

リソース参照をコンパイルするときだけでなく、コードで参照するときは、c# と Visual Basic の両方のコンパイラの大文字小文字を区別します。The resource reference when compiling as well as when referencing it in code, is case sensitive for both the C# and Visual Basic compilers.

適用対象