PictureBoxSizeMode 列挙型


PictureBox 内でのイメージの配置方法を指定します。Specifies how an image is positioned within a PictureBox.

public enum class PictureBoxSizeMode
public enum PictureBoxSizeMode
type PictureBoxSizeMode = 
Public Enum PictureBoxSizeMode


AutoSize 2

PictureBox のサイズは、格納しているイメージと同じ大きさになります。The PictureBox is sized equal to the size of the image that it contains.

CenterImage 3

PictureBox がイメージより大きい場合、イメージは中央に表示されます。The image is displayed in the center if the PictureBox is larger than the image. イメージの方が PictureBox より大きい場合、イメージは PictureBox の中央に配置され、外にはみ出した部分はクリップされます。If the image is larger than the PictureBox, the picture is placed in the center of the PictureBox and the outside edges are clipped.

Normal 0

イメージは、PictureBox の左上隅に配置されます。The image is placed in the upper-left corner of the PictureBox. イメージを格納する PictureBox よりもイメージの方が大きい場合、イメージはクリップされます。The image is clipped if it is larger than the PictureBox it is contained in.

StretchImage 1

PictureBox 内のイメージのサイズは、PictureBox のサイズに合うように調整されます。The image within the PictureBox is stretched or shrunk to fit the size of the PictureBox.

Zoom 4

イメージのサイズは、サイズ比率を維持したままで拡大または縮小します。The size of the image is increased or decreased maintaining the size ratio.

次のコード例は、 SizeModeプロパティの使用方法を示しています。The following code example demonstrates the use of the SizeMode property. この例を実行するには、次のコードを Windows フォームに貼りInitializePictureBoxAndButton付け、フォームのコンストラクターまたは読み込みイベント処理メソッドからメソッドを呼び出します。To run this example, paste the following code into a Windows Form and call the InitializePictureBoxAndButton method from the form's constructor or Load-event handling method.

PictureBox PictureBox1 = new PictureBox();
Button Button1 = new Button();

private void InitializePictureBoxAndButton()

    Button1.Location = new Point(175, 20);
    Button1.Text = "Stretch";
    Button1.Click += new EventHandler(Button1_Click);

    // Set the size of the PictureBox control.
    this.PictureBox1.Size = new System.Drawing.Size(140, 140);

    //Set the SizeMode to center the image.
    this.PictureBox1.SizeMode = PictureBoxSizeMode.CenterImage;

    // Set the border style to a three-dimensional border.
    this.PictureBox1.BorderStyle = BorderStyle.Fixed3D;

    // Set the image property.
    this.PictureBox1.Image = new Bitmap(typeof(Button), "Button.bmp");

private void Button1_Click(System.Object sender, System.EventArgs e)
    // Set the SizeMode property to the StretchImage value.  This
    // will enlarge the image as needed to fit into
    // the PictureBox.
    PictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
Dim PictureBox1 As New PictureBox()
Dim WithEvents Button1 As New Button

<STAThread()> _
Public Shared Sub Main()
    Application.Run(New Form1())
End Sub

Private Sub InitializePictureBoxAndButton()

    Button1.Location = New Point(175, 20)
    Button1.Text = "Stretch"

    ' Set the size of the PictureBox control.
    Me.PictureBox1.Size = New System.Drawing.Size(140, 140)

    'Set the SizeMode to center the image.
    Me.PictureBox1.SizeMode = PictureBoxSizeMode.CenterImage

    ' Set the border style to a three-dimensional border.
    Me.PictureBox1.BorderStyle = BorderStyle.Fixed3D

    ' Set the image property.
    Me.PictureBox1.Image = New Bitmap(GetType(Button), "Button.bmp")
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click
    ' Set the SizeMode property to the StretchImage value.  This
    ' will enlarge the image as needed to fit into
    ' the PictureBox.
    PictureBox1.SizeMode = PictureBoxSizeMode.StretchImage
End Sub


この列挙体のメンバーを使用して、 SizeMode PictureBoxのプロパティの値を設定します。Use the members of this enumeration to set the value of the SizeMode property of the PictureBox.