ImageList 建構函式

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

初始化 ImageList 類別的新執行個體。

多載

名稱	Description
ImageList()	初始化一個新的類別實例 ImageList ，預設值為 ColorDepth、 ImageSize和 TransparentColor。
ImageList(IContainer)	初始化該類別的新實例 ImageList ，並將其與容器關聯。

ImageList()

來源:

ImageList.cs

初始化一個新的類別實例 ImageList ，預設值為 ColorDepth、 ImageSize和 TransparentColor。

public:
 ImageList();

public ImageList();

Public Sub New ()

範例

以下程式碼範例示範如何建構 ， ImageList將圖片加入 Images 屬性，設定 ImageSize 屬性，並使用該 Draw 方法。 執行此範例時，將它放入包含名為 Button1的按鈕的表單中。 範例假設 c：\Windows\ 處存在 FeatherTexture.bmp 和 Gone Fishing.bmp 。 如果點陣圖在你的系統上不存在，或在其他位置存在，請相應地修改範例。

internal:
   System::Windows::Forms::ImageList^ ImageList1;

private:

   // Create an ImageList Object, populate it, and display
   // the images it contains.
   void Button1_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      
      // Construct the ImageList.
      ImageList1 = gcnew ImageList;
      
      // Set the ImageSize property to a larger size 
      // (the default is 16 x 16).
      ImageList1->ImageSize = System::Drawing::Size( 112, 112 );
      
      // Add two images to the list.
      ImageList1->Images->Add( Image::FromFile( "c:\\windows\\FeatherTexture.bmp" ) );
      ImageList1->Images->Add( Image::FromFile( "C:\\windows\\Gone Fishing.bmp" ) );
      
      // Get a Graphics object from the form's handle.
      Graphics^ theGraphics = Graphics::FromHwnd( this->Handle );
      
      // Loop through the images in the list, drawing each image.
      for ( int count = 0; count < ImageList1->Images->Count; count++ )
      {
         ImageList1->Draw( theGraphics, Point(85,85), count );
         
         // Call Application.DoEvents to force a repaint of the form.
         Application::DoEvents();
         
         // Call the Sleep method to allow the user to see the image.
         System::Threading::Thread::Sleep( 1000 );

      }
   }

internal System.Windows.Forms.ImageList ImageList1;

// Create an ImageList Object, populate it, and display
// the images it contains.
private void Button1_Click(System.Object sender, 
    System.EventArgs e)
{

    // Construct the ImageList.
    ImageList1 = new ImageList();

    // Set the ImageSize property to a larger size 
    // (the default is 16 x 16).
    ImageList1.ImageSize = new Size(112, 112);

    // Add two images to the list.
    ImageList1.Images.Add(
        Image.FromFile("c:\\windows\\FeatherTexture.bmp"));
    ImageList1.Images.Add(
        Image.FromFile("C:\\windows\\Gone Fishing.bmp"));

    // Get a Graphics object from the form's handle.
    Graphics theGraphics = Graphics.FromHwnd(this.Handle);

    // Loop through the images in the list, drawing each image.
    for(int count = 0; count < ImageList1.Images.Count; count++)
    {
        ImageList1.Draw(theGraphics, new Point(85, 85), count);

        // Call Application.DoEvents to force a repaint of the form.
        Application.DoEvents();

        // Call the Sleep method to allow the user to see the image.
        System.Threading.Thread.Sleep(1000);
    }
}

Friend WithEvents ImageList1 As System.Windows.Forms.ImageList

' Create an ImageList Object, populate it, and display
' the images it contains.
Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

    ' Construct the ImageList.
    ImageList1 = New ImageList

    ' Set the ImageSize property to a larger size 
    ' (the default is 16 x 16).
    ImageList1.ImageSize = New Size(112, 112)

    ' Add two images to the list.
    ImageList1.Images.Add(Image.FromFile _
        ("c:\windows\FeatherTexture.bmp"))
    ImageList1.Images.Add _
        (Image.FromFile("C:\windows\Gone Fishing.bmp"))

    Dim count As System.Int32

    ' Get a Graphics object from the form's handle.
    Dim theGraphics As Graphics = Graphics.FromHwnd(Me.Handle)

    ' Loop through the images in the list, drawing each image.
    For count = 0 To ImageList1.Images.Count - 1
        ImageList1.Draw(theGraphics, New Point(85, 85), count)

        ' Call Application.DoEvents to force a repaint of the form.
        Application.DoEvents()

        ' Call the Sleep method to allow the user to see the image.
        System.Threading.Thread.Sleep(1000)
    Next
End Sub

備註

下表顯示了 的 ImageList初始屬性值。

項目	說明
ColorDepth	在 .NET Framework 及 .NET（核心）版本到 .NET 7 中，預設為 Depth8Bit。 在 .NET 8 及以後版本中，預設為 Depth32Bit。
ImageSize	預設的物件高度和寬度為 Size 16 x 16。
TransparentColor	預設值為 Transparent。

ImageList(IContainer)

來源:

ImageList.cs

初始化該類別的新實例 ImageList ，並將其與容器關聯。

public:
 ImageList(System::ComponentModel::IContainer ^ container);

public ImageList(System.ComponentModel.IContainer container);

new System.Windows.Forms.ImageList : System.ComponentModel.IContainer -> System.Windows.Forms.ImageList

Public Sub New (container As IContainer)

參數

container

IContainer

一個實作 IContainer 用來關聯此實例的 ImageList物件。

備註

建 ImageList 構子讓你能將 a ImageList 與任何 Container 物件關聯。 透過將 這樣關聯，你將 ImageList 的生命 ImageList 週期控制權交給了 Container。 如果你在申請中使用多個組件，並希望同時處理所有零件，這會非常有用。 例如，若你將 a ToolTip、an ImageList、a Timer 與 關聯到 Container，呼叫 Dispose 容器也會強制丟棄所有這些元件。