JpegBitmapEncoder.Rotation プロパティ

定義

名前空間:

System.Windows.Media.Imaging

アセンブリ:

PresentationCore.dll

Joint Photographics Experts Group (JPEG) イメージの回転角度を表す値を取得または設定します。

public:
 property System::Windows::Media::Imaging::Rotation Rotation { System::Windows::Media::Imaging::Rotation get(); void set(System::Windows::Media::Imaging::Rotation value); };

public System.Windows.Media.Imaging.Rotation Rotation { get; set; }

member this.Rotation : System.Windows.Media.Imaging.Rotation with get, set

Public Property Rotation As Rotation

プロパティ値

Rotation

イメージを回転する角度。

例

次の例では、プロパティの値を設定する方法を Rotation 示します。

BitmapSource^ image = BitmapSource::Create(
   width, height,
   96, 96,
   PixelFormats::Indexed1,
   myPalette,
   pixels,
   stride);

BitmapSource image = BitmapSource.Create(
    width,
    height,
    96,
    96,
    PixelFormats.Indexed1,
    myPalette,
    pixels,
    stride);

Dim image As BitmapSource = System.Windows.Media.Imaging.BitmapSource.Create(width, height, 96, 96, PixelFormats.Indexed1, myPalette, pixels, stride)

System::IO::FileStream^ stream = gcnew System::IO::FileStream("new.jpg", FileMode::Create);
JpegBitmapEncoder^ encoder = gcnew JpegBitmapEncoder();
TextBlock^ myTextBlock = gcnew System::Windows::Controls::TextBlock();
myTextBlock->Text = "Codec Author is: " + encoder->CodecInfo->Author->ToString();
encoder->FlipHorizontal = true;
encoder->FlipVertical = false;
encoder->QualityLevel = 30;
encoder->Rotation = Rotation::Rotate90;
encoder->Frames->Add(BitmapFrame::Create(image));
encoder->Save(stream);

FileStream stream = new FileStream("new.jpg", FileMode.Create);
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
TextBlock myTextBlock = new TextBlock();
myTextBlock.Text = "Codec Author is: " + encoder.CodecInfo.Author.ToString();
encoder.FlipHorizontal = true;
encoder.FlipVertical = false;
encoder.QualityLevel = 30;
encoder.Rotation = Rotation.Rotate90;
encoder.Frames.Add(BitmapFrame.Create(image));
encoder.Save(stream);

Dim stream As New FileStream("new.jpg", FileMode.Create)
Dim encoder As New JpegBitmapEncoder()
Dim myTextBlock As New TextBlock()
myTextBlock.Text = "Codec Author is: " + encoder.CodecInfo.Author.ToString()
encoder.FlipHorizontal = True
encoder.FlipVertical = False
encoder.QualityLevel = 30
encoder.Rotation = Rotation.Rotate90
encoder.Frames.Add(BitmapFrame.Create(image))
encoder.Save(stream)

注釈

回転は 90 度単位でのみサポートされます。

回転はソース イメージのロスレス変換を表し、以前のロスレス変換を置き換えます。