BitmapFrame.Create Méthode

public:
 static System::Windows::Media::Imaging::BitmapFrame ^ Create(System::IO::Stream ^ bitmapStream);

public static System.Windows.Media.Imaging.BitmapFrame Create(System.IO.Stream bitmapStream);

static member Create : System.IO.Stream -> System.Windows.Media.Imaging.BitmapFrame

Public Shared Function Create (bitmapStream As Stream) As BitmapFrame

Paramètres

Retours

A BitmapFrame d’un donné Stream.

Remarques

La bitmapStream valeur peut être fermée une fois le frame créé uniquement lorsque l’option de OnLoad cache est utilisée. L’option de cache par défaut OnDemand conserve le flux jusqu’à ce que le frame soit nécessaire. Utilisez la Create(Stream, BitmapCreateOptions, BitmapCacheOption) méthode pour spécifier les options de création et de cache.

public:
 static System::Windows::Media::Imaging::BitmapFrame ^ Create(Uri ^ bitmapUri);

public static System.Windows.Media.Imaging.BitmapFrame Create(Uri bitmapUri);

static member Create : Uri -> System.Windows.Media.Imaging.BitmapFrame

Public Shared Function Create (bitmapUri As Uri) As BitmapFrame

Paramètres

Retours

A BitmapFrame d’un donné Uri.

Exemples

L’exemple de code suivant montre comment construire un à BitmapFrame partir d’un donné Uri.

int width = 128;
int height = width;
int stride = width/8;
byte[] pixels = new byte[height*stride];

// Try creating a new image with a custom palette.
List<System.Windows.Media.Color> colors = new List<System.Windows.Media.Color>();
colors.Add(System.Windows.Media.Colors.Red);
colors.Add(System.Windows.Media.Colors.Blue);
colors.Add(System.Windows.Media.Colors.Green);
BitmapPalette myPalette = new BitmapPalette(colors);

// Creates a new empty image with the pre-defined palette

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

FileStream stream = new FileStream("empty.tif", FileMode.Create);
TiffBitmapEncoder encoder = new TiffBitmapEncoder();
TextBlock myTextBlock = new TextBlock();
myTextBlock.Text = "Codec Author is: " + encoder.CodecInfo.Author.ToString();
encoder.Frames.Add(BitmapFrame.Create(image));
MessageBox.Show(myPalette.Colors.Count.ToString());
encoder.Save(stream);

Dim width As Integer = 128
Dim height As Integer = width
Dim stride As Integer = CType(width / 8, Integer)
Dim pixels(height * stride) As Byte

' Try creating a new image with a custom palette.
Dim colors As New List(Of System.Windows.Media.Color)()
colors.Add(System.Windows.Media.Colors.Red)
colors.Add(System.Windows.Media.Colors.Blue)
colors.Add(System.Windows.Media.Colors.Green)
Dim myPalette As New BitmapPalette(colors)

' Creates a new empty image with the pre-defined palette
Dim image As BitmapSource = System.Windows.Media.Imaging.BitmapSource.Create(width, height, 96, 96, PixelFormats.Indexed1, myPalette, pixels, stride)
Dim stream As New FileStream("empty.tif", FileMode.Create)
Dim encoder As New TiffBitmapEncoder()
Dim myTextBlock As New TextBlock()
myTextBlock.Text = "Codec Author is: " + encoder.CodecInfo.Author.ToString()
encoder.Frames.Add(BitmapFrame.Create(image))
MessageBox.Show(myPalette.Colors.Count.ToString())
encoder.Save(stream)

public:
 static System::Windows::Media::Imaging::BitmapFrame ^ Create(System::Windows::Media::Imaging::BitmapSource ^ source);

public static System.Windows.Media.Imaging.BitmapFrame Create(System.Windows.Media.Imaging.BitmapSource source);

static member Create : System.Windows.Media.Imaging.BitmapSource -> System.Windows.Media.Imaging.BitmapFrame

Public Shared Function Create (source As BitmapSource) As BitmapFrame

Paramètres

Retours

A BitmapFrame d’un donné BitmapSource.

public:
 static System::Windows::Media::Imaging::BitmapFrame ^ Create(Uri ^ bitmapUri, System::Net::Cache::RequestCachePolicy ^ uriCachePolicy);

public static System.Windows.Media.Imaging.BitmapFrame Create(Uri bitmapUri, System.Net.Cache.RequestCachePolicy uriCachePolicy);

static member Create : Uri * System.Net.Cache.RequestCachePolicy -> System.Windows.Media.Imaging.BitmapFrame

Public Shared Function Create (bitmapUri As Uri, uriCachePolicy As RequestCachePolicy) As BitmapFrame

Paramètres

Retours

A BitmapFrame d’un donné Uri avec le spécifié RequestCachePolicy.

Remarques

Create(Uri, RequestCachePolicy) est introduit dans .NET Framework version 3.5. Pour plus d’informations, consultez Versions et dépendances.

public:
 static System::Windows::Media::Imaging::BitmapFrame ^ Create(System::Windows::Media::Imaging::BitmapSource ^ source, System::Windows::Media::Imaging::BitmapSource ^ thumbnail);

public static System.Windows.Media.Imaging.BitmapFrame Create(System.Windows.Media.Imaging.BitmapSource source, System.Windows.Media.Imaging.BitmapSource thumbnail);

static member Create : System.Windows.Media.Imaging.BitmapSource * System.Windows.Media.Imaging.BitmapSource -> System.Windows.Media.Imaging.BitmapFrame

Public Shared Function Create (source As BitmapSource, thumbnail As BitmapSource) As BitmapFrame

Paramètres

Retours

A BitmapFrame partir d’une donnée BitmapSource avec la miniature spécifiée.

public:
 static System::Windows::Media::Imaging::BitmapFrame ^ Create(System::IO::Stream ^ bitmapStream, System::Windows::Media::Imaging::BitmapCreateOptions createOptions, System::Windows::Media::Imaging::BitmapCacheOption cacheOption);

public static System.Windows.Media.Imaging.BitmapFrame Create(System.IO.Stream bitmapStream, System.Windows.Media.Imaging.BitmapCreateOptions createOptions, System.Windows.Media.Imaging.BitmapCacheOption cacheOption);

static member Create : System.IO.Stream * System.Windows.Media.Imaging.BitmapCreateOptions * System.Windows.Media.Imaging.BitmapCacheOption -> System.Windows.Media.Imaging.BitmapFrame

Public Shared Function Create (bitmapStream As Stream, createOptions As BitmapCreateOptions, cacheOption As BitmapCacheOption) As BitmapFrame

Paramètres

Retours

A BitmapFrame d’un donné Stream avec les données spécifiées BitmapCreateOptions et BitmapCacheOption.

Remarques

Utilisez l’option de OnLoad cache si vous souhaitez fermer l’image bitmapStream bitmap après la création de la bitmap. L’option de cache par défaut OnDemand conserve l’accès au flux jusqu’à ce que la bitmap soit nécessaire et que le nettoyage soit géré par le garbage collector.

public:
 static System::Windows::Media::Imaging::BitmapFrame ^ Create(Uri ^ bitmapUri, System::Windows::Media::Imaging::BitmapCreateOptions createOptions, System::Windows::Media::Imaging::BitmapCacheOption cacheOption);

public static System.Windows.Media.Imaging.BitmapFrame Create(Uri bitmapUri, System.Windows.Media.Imaging.BitmapCreateOptions createOptions, System.Windows.Media.Imaging.BitmapCacheOption cacheOption);

static member Create : Uri * System.Windows.Media.Imaging.BitmapCreateOptions * System.Windows.Media.Imaging.BitmapCacheOption -> System.Windows.Media.Imaging.BitmapFrame

Public Shared Function Create (bitmapUri As Uri, createOptions As BitmapCreateOptions, cacheOption As BitmapCacheOption) As BitmapFrame

Paramètres

Retours

A BitmapFrame d’un donné Uri avec le spécifié BitmapCreateOptions, et BitmapCacheOption.

public:
 static System::Windows::Media::Imaging::BitmapFrame ^ Create(Uri ^ bitmapUri, System::Windows::Media::Imaging::BitmapCreateOptions createOptions, System::Windows::Media::Imaging::BitmapCacheOption cacheOption, System::Net::Cache::RequestCachePolicy ^ uriCachePolicy);

public static System.Windows.Media.Imaging.BitmapFrame Create(Uri bitmapUri, System.Windows.Media.Imaging.BitmapCreateOptions createOptions, System.Windows.Media.Imaging.BitmapCacheOption cacheOption, System.Net.Cache.RequestCachePolicy uriCachePolicy);

static member Create : Uri * System.Windows.Media.Imaging.BitmapCreateOptions * System.Windows.Media.Imaging.BitmapCacheOption * System.Net.Cache.RequestCachePolicy -> System.Windows.Media.Imaging.BitmapFrame

Public Shared Function Create (bitmapUri As Uri, createOptions As BitmapCreateOptions, cacheOption As BitmapCacheOption, uriCachePolicy As RequestCachePolicy) As BitmapFrame

Paramètres

Retours

A BitmapFrame d’un donné Uri avec le BitmapCreateOptions, BitmapCacheOptionet RequestCachePolicy.

Remarques

Create(Uri, BitmapCreateOptions, BitmapCacheOption, RequestCachePolicy) est introduit dans .NET Framework version 3.5. Pour plus d’informations, consultez Versions et dépendances.

public:
 static System::Windows::Media::Imaging::BitmapFrame ^ Create(System::Windows::Media::Imaging::BitmapSource ^ source, System::Windows::Media::Imaging::BitmapSource ^ thumbnail, System::Windows::Media::Imaging::BitmapMetadata ^ metadata, System::Collections::ObjectModel::ReadOnlyCollection<System::Windows::Media::ColorContext ^> ^ colorContexts);

public static System.Windows.Media.Imaging.BitmapFrame Create(System.Windows.Media.Imaging.BitmapSource source, System.Windows.Media.Imaging.BitmapSource thumbnail, System.Windows.Media.Imaging.BitmapMetadata metadata, System.Collections.ObjectModel.ReadOnlyCollection<System.Windows.Media.ColorContext> colorContexts);

static member Create : System.Windows.Media.Imaging.BitmapSource * System.Windows.Media.Imaging.BitmapSource * System.Windows.Media.Imaging.BitmapMetadata * System.Collections.ObjectModel.ReadOnlyCollection<System.Windows.Media.ColorContext> -> System.Windows.Media.Imaging.BitmapFrame

Public Shared Function Create (source As BitmapSource, thumbnail As BitmapSource, metadata As BitmapMetadata, colorContexts As ReadOnlyCollection(Of ColorContext)) As BitmapFrame

Paramètres

Retours

A BitmapFrame d’un donné BitmapSource avec la miniature spécifiée, BitmapMetadataet ColorContext.