Control.CursorChanged イベント
Cursor プロパティの値が変更された場合に発生します。
Public Event CursorChanged As EventHandler
[C#]
public event EventHandler CursorChanged;
[C++]
public: __event EventHandler* CursorChanged;
[JScript] JScript では、このクラスで定義されているイベントを処理できます。ただし、独自に定義することはできません。
イベント データ
イベント ハンドラが EventArgs 型の引数を受け取りました。
解説
このイベントは Cursor プロパティがプログラムの変更によって、またはユーザーとの対話によって変更された場合に発生します。
イベント処理の詳細については、「 イベントの利用 」を参照してください。
使用例
[Visual Basic, C#, C++] Control.Cursor プロパティ、 Cursor クラスおよび Cursors クラスを使用して、マウス カーソルを変更する例を次に示します。この例では、 ComboBox コントロール、 Panel コントロール、および ListView コントロールを格納するフォームを作成します。 ComboBox には、 Cursors クラスによって提供されたすべてのカーソルが格納されています。ユーザーが ComboBox 内でマウス カーソルを選択すると、 Control.Cursor プロパティがそのカーソルに設定され、これによって Panel のカーソルが更新されます。 ListView は、 Control.CursorChanged イベントが発生するたびに更新されます。
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Namespace MCursor
' Summary description for Form1.
Public NotInheritable Class Form1
Inherits System.Windows.Forms.Form
Friend WithEvents cursorSelectionComboBox As System.Windows.Forms.ComboBox
Friend WithEvents testPanel As System.Windows.Forms.Panel
Private label1 As System.Windows.Forms.Label
Private label2 As System.Windows.Forms.Label
Private cursorEventViewer As System.Windows.Forms.ListView
Private label3 As System.Windows.Forms.Label
<System.STAThread()> _
Public Shared Sub Main()
System.Windows.Forms.Application.Run(New Form1)
End Sub 'Main
Public Sub New()
Me.cursorSelectionComboBox = New System.Windows.Forms.ComboBox
Me.testPanel = New System.Windows.Forms.Panel
Me.label1 = New System.Windows.Forms.Label
Me.label2 = New System.Windows.Forms.Label
Me.cursorEventViewer = New System.Windows.Forms.ListView
Me.label3 = New System.Windows.Forms.Label
' Select Cursor Label
Me.label2.Location = New System.Drawing.Point(24, 16)
Me.label2.Size = New System.Drawing.Size(80, 16)
Me.label2.Text = "Select cursor:" '
' Cursor Testing Panel Label
Me.label1.Location = New System.Drawing.Point(24, 80)
Me.label1.Size = New System.Drawing.Size(144, 23)
Me.label1.Text = "Cursor testing panel:"
' Cursor Changed Events Label
Me.label3.Location = New System.Drawing.Point(184, 16)
Me.label3.Size = New System.Drawing.Size(128, 16)
Me.label3.Text = "Cursor changed events:"
' Cursor Selection ComboBox
Me.cursorSelectionComboBox.Location = New System.Drawing.Point(24, 40)
Me.cursorSelectionComboBox.Size = New System.Drawing.Size(152, 21)
Me.cursorSelectionComboBox.TabIndex = 0
' Cursor Test Panel
Me.testPanel.BackColor = System.Drawing.SystemColors.ControlDark
Me.testPanel.Location = New System.Drawing.Point(24, 104)
Me.testPanel.Size = New System.Drawing.Size(152, 160)
' Cursor Event ListView
Me.cursorEventViewer.Location = New System.Drawing.Point(184, 40)
Me.cursorEventViewer.Size = New System.Drawing.Size(256, 224)
Me.cursorEventViewer.TabIndex = 4
Me.cursorEventViewer.View = System.Windows.Forms.View.List
' Set up how the form should be displayed and add the controls to the form.
Me.ClientSize = New System.Drawing.Size(456, 286)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.label3, _
Me.cursorEventViewer, Me.label2, Me.label1, _
Me.testPanel, Me.cursorSelectionComboBox})
Me.Text = "Cursors Example"
' Add all the cursor types to the combobox.
Dim cursor As Cursor
For Each cursor In CursorList()
cursorSelectionComboBox.Items.Add(cursor)
Next cursor
End Sub 'New
Private Function CursorList() As Cursor()
' Make an array of all the types of cursors in Windows Forms.
return New Cursor() {Cursors.AppStarting, Cursors.Arrow, Cursors.Cross, _
Cursors.Default, Cursors.Hand, Cursors.Help, _
Cursors.HSplit, Cursors.IBeam, Cursors.No, _
Cursors.NoMove2D, Cursors.NoMoveHoriz, Cursors.NoMoveVert, _
Cursors.PanEast, Cursors.PanNE, Cursors.PanNorth, _
Cursors.PanNW, Cursors.PanSE, Cursors.PanSouth, _
Cursors.PanSW, Cursors.PanWest, Cursors.SizeAll, _
Cursors.SizeNESW, Cursors.SizeNS, Cursors.SizeNWSE, _
Cursors.SizeWE, Cursors.UpArrow, Cursors.VSplit, Cursors.WaitCursor}
End Function
Private Sub cursorSelectionComboBox_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles cursorSelectionComboBox.SelectedIndexChanged
' Set the cursor in the test panel to be the selected cursor style.
testPanel.Cursor = CType(cursorSelectionComboBox.SelectedItem, Cursor)
End Sub
Private Sub testPanel_CursorChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles testPanel.CursorChanged
' Build up a string containing the type of object sending the event, and the event.
Dim cursorEvent As String = String.Format("[{0}]: {1}", sender.GetType().ToString(), "Cursor changed")
' Records this event in the list view.
Me.cursorEventViewer.Items.Add(cursorEvent)
End Sub
End Class 'Form1
End Namespace 'MCursor
[C#]
using System;
using System.Drawing;
using System.Windows.Forms;
namespace MCursor
{
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.ComboBox cursorSelectionComboBox;
private System.Windows.Forms.Panel testPanel;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.ListView cursorEventViewer;
private System.Windows.Forms.Label label3;
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
public Form1()
{
this.cursorSelectionComboBox = new System.Windows.Forms.ComboBox();
this.testPanel = new System.Windows.Forms.Panel();
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.cursorEventViewer = new System.Windows.Forms.ListView();
this.label3 = new System.Windows.Forms.Label();
// Select Cursor Label
this.label2.Location = new System.Drawing.Point(24, 16);
this.label2.Size = new System.Drawing.Size(80, 16);
this.label2.Text = "Select cursor:";
// Cursor Testing Panel Label
this.label1.Location = new System.Drawing.Point(24, 80);
this.label1.Size = new System.Drawing.Size(144, 23);
this.label1.Text = "Cursor testing panel:";
// Cursor Changed Events Label
this.label3.Location = new System.Drawing.Point(184, 16);
this.label3.Size = new System.Drawing.Size(128, 16);
this.label3.Text = "Cursor changed events:";
// Cursor Selection ComboBox
this.cursorSelectionComboBox.Location = new System.Drawing.Point(24, 40);
this.cursorSelectionComboBox.Size = new System.Drawing.Size(152, 21);
this.cursorSelectionComboBox.TabIndex = 0;
this.cursorSelectionComboBox.SelectedIndexChanged +=
new System.EventHandler(this.cursorSelectionComboBox_SelectedIndexChanged);
// Cursor Test Panel
this.testPanel.BackColor = System.Drawing.SystemColors.ControlDark;
this.testPanel.Location = new System.Drawing.Point(24, 104);
this.testPanel.Size = new System.Drawing.Size(152, 160);
this.testPanel.CursorChanged += new System.EventHandler(this.testPanel_CursorChanged);
// Cursor Event ListView
this.cursorEventViewer.Location = new System.Drawing.Point(184, 40);
this.cursorEventViewer.Size = new System.Drawing.Size(256, 224);
this.cursorEventViewer.TabIndex = 4;
this.cursorEventViewer.View = System.Windows.Forms.View.List;
// Set up how the form should be displayed and add the controls to the form.
this.ClientSize = new System.Drawing.Size(456, 286);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.label3, this.cursorEventViewer,
this.label2, this.label1,
this.testPanel, this.cursorSelectionComboBox});
this.Text = "Cursors Example";
// Add all the cursor types to the combobox.
foreach (Cursor cursor in CursorList())
{
cursorSelectionComboBox.Items.Add(cursor);
}
}
private Cursor [] CursorList()
{
// Make an array of all the types of cursors in Windows Forms.
return new Cursor [] {
Cursors.AppStarting, Cursors.Arrow, Cursors.Cross,
Cursors.Default, Cursors.Hand, Cursors.Help,
Cursors.HSplit, Cursors.IBeam, Cursors.No,
Cursors.NoMove2D, Cursors.NoMoveHoriz, Cursors.NoMoveVert,
Cursors.PanEast, Cursors.PanNE, Cursors.PanNorth,
Cursors.PanNW, Cursors.PanSE, Cursors.PanSouth,
Cursors.PanSW, Cursors.PanWest, Cursors.SizeAll,
Cursors.SizeNESW, Cursors.SizeNS, Cursors.SizeNWSE,
Cursors.SizeWE, Cursors.UpArrow, Cursors.VSplit, Cursors.WaitCursor};
}
private void cursorSelectionComboBox_SelectedIndexChanged(object sender, System.EventArgs e)
{
// Set the cursor in the test panel to be the selected cursor style.
testPanel.Cursor = (Cursor)cursorSelectionComboBox.SelectedItem;
}
private void testPanel_CursorChanged(object sender, System.EventArgs e)
{
// Build up a string containing the type of object sending the event, and the event.
string cursorEvent = string.Format("[{0}]: {1}", sender.GetType().ToString(), "Cursor changed");
// Record this event in the list view.
this.cursorEventViewer.Items.Add(cursorEvent);
}
}
}
[C++]
#using <mscorlib.dll>
#using <System.dll>
#using <System.Windows.Forms.dll>
#using <System.Drawing.dll>
using namespace System;
using namespace System::Drawing;
using namespace System::Windows::Forms;
namespace MCursor {
public __gc class Form1 : public System::Windows::Forms::Form {
private:
System::Windows::Forms::ComboBox* cursorSelectionComboBox;
System::Windows::Forms::Panel* testPanel;
System::Windows::Forms::Label* label1;
System::Windows::Forms::Label* label2;
System::Windows::Forms::ListView* cursorEventViewer;
System::Windows::Forms::Label* label3;
public:
Form1() {
this->cursorSelectionComboBox = new System::Windows::Forms::ComboBox();
this->testPanel = new System::Windows::Forms::Panel();
this->label1 = new System::Windows::Forms::Label();
this->label2 = new System::Windows::Forms::Label();
this->cursorEventViewer = new System::Windows::Forms::ListView();
this->label3 = new System::Windows::Forms::Label();
// Select Cursor Label
this->label2->Location = System::Drawing::Point(24, 16);
this->label2->Size = System::Drawing::Size(80, 16);
this->label2->Text = S"Select cursor:";
// Cursor Testing Panel Label
this->label1->Location = System::Drawing::Point(24, 80);
this->label1->Size = System::Drawing::Size(144, 23);
this->label1->Text = S"Cursor testing panel:";
// Cursor Changed Events Label
this->label3->Location = System::Drawing::Point(184, 16);
this->label3->Size = System::Drawing::Size(128, 16);
this->label3->Text = S"Cursor changed events:";
// Cursor Selection ComboBox
this->cursorSelectionComboBox->Location = System::Drawing::Point(24, 40);
this->cursorSelectionComboBox->Size = System::Drawing::Size(152, 21);
this->cursorSelectionComboBox->TabIndex = 0;
this->cursorSelectionComboBox->SelectedIndexChanged +=
new System::EventHandler(this, &Form1::cursorSelectionComboBox_SelectedIndexChanged);
// Cursor Test Panel
this->testPanel->BackColor = System::Drawing::SystemColors::ControlDark;
this->testPanel->Location = System::Drawing::Point(24, 104);
this->testPanel->Size = System::Drawing::Size(152, 160);
this->testPanel->CursorChanged += new System::EventHandler(this, &Form1::testPanel_CursorChanged);
// Cursor Event ListView
this->cursorEventViewer->Location = System::Drawing::Point(184, 40);
this->cursorEventViewer->Size = System::Drawing::Size(256, 224);
this->cursorEventViewer->TabIndex = 4;
this->cursorEventViewer->View = System::Windows::Forms::View::List;
// Set up how the form should be displayed and add the controls to the form.
this->ClientSize = System::Drawing::Size(456, 286);
System::Windows::Forms::Control* temp0 [] = {this->label3, this->cursorEventViewer,
this->label2, this->label1,
this->testPanel, this->cursorSelectionComboBox};
this->Controls->AddRange(temp0);
this->Text = S"Cursors Example";
// Add all the cursor types to the combobox.
System::Collections::IEnumerator* myEnum = CursorList()->GetEnumerator();
while (myEnum->MoveNext()) {
System::Windows::Forms::Cursor* cursor = __try_cast<System::Windows::Forms::Cursor*>(myEnum->Current);
cursorSelectionComboBox->Items->Add(cursor);
}
}
private:
System::Windows::Forms::Cursor* CursorList()[] {
// Make an array of all the types of cursors in Windows Forms.
System::Windows::Forms::Cursor* temp1 [] = {Cursors::AppStarting, Cursors::Arrow, Cursors::Cross,
Cursors::Default, Cursors::Hand, Cursors::Help,
Cursors::HSplit, Cursors::IBeam, Cursors::No,
Cursors::NoMove2D, Cursors::NoMoveHoriz, Cursors::NoMoveVert,
Cursors::PanEast, Cursors::PanNE, Cursors::PanNorth,
Cursors::PanNW, Cursors::PanSE, Cursors::PanSouth,
Cursors::PanSW, Cursors::PanWest, Cursors::SizeAll,
Cursors::SizeNESW, Cursors::SizeNS, Cursors::SizeNWSE,
Cursors::SizeWE, Cursors::UpArrow, Cursors::VSplit, Cursors::WaitCursor};
return temp1;
}
void cursorSelectionComboBox_SelectedIndexChanged(Object* /*sender*/, System::EventArgs* /*e*/) {
// Set the cursor in the test panel to be the selected cursor style.
testPanel->Cursor = dynamic_cast<System::Windows::Forms::Cursor*>(cursorSelectionComboBox->SelectedItem);
}
void testPanel_CursorChanged(Object* sender, System::EventArgs* /*e*/) {
// Build up a String* containing the type of Object* sending the event, and the event.
String* cursorEvent = String::Format(S"[{0}]: {1}", sender->GetType(), S"Cursor changed");
// Record this event in the list view.
this->cursorEventViewer->Items->Add(cursorEvent);
}
};
}
[STAThread]
int main() {
Application::Run(new MCursor::Form1());
}
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をクリックします。
必要条件
プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ
参照
Control クラス | Control メンバ | System.Windows.Forms 名前空間 | OnCursorChanged | Control.Cursor | Cursor