PixelFormat Estrutura

Definição

Namespace:

System.Windows.Media

Assembly:

PresentationCore.dll

Define um formato de pixel para imagens e superfícies de pixel.

public value class PixelFormat : IEquatable<System::Windows::Media::PixelFormat>

[System.ComponentModel.TypeConverter(typeof(System.Windows.Media.PixelFormatConverter))]
[System.Serializable]
public struct PixelFormat : IEquatable<System.Windows.Media.PixelFormat>

[System.ComponentModel.TypeConverter(typeof(System.Windows.Media.PixelFormatConverter))]
public struct PixelFormat : IEquatable<System.Windows.Media.PixelFormat>

[<System.ComponentModel.TypeConverter(typeof(System.Windows.Media.PixelFormatConverter))>]
[<System.Serializable>]
type PixelFormat = struct

[<System.ComponentModel.TypeConverter(typeof(System.Windows.Media.PixelFormatConverter))>]
type PixelFormat = struct

Public Structure PixelFormat
Implements IEquatable(Of PixelFormat)

Herança

Object

ValueType

PixelFormat

Atributos

TypeConverterAttribute SerializableAttribute

Implementações

IEquatable<PixelFormat>

Exemplos

O exemplo a seguir mostra como criar e PixelFormat localizar o valor de suas propriedades.

public PixelFormat createPixelFormat()
{
    // Create a PixelFormat object.
    PixelFormat myPixelFormat = new PixelFormat();
    
    // Make this PixelFormat a Gray32Float pixel format.
    myPixelFormat = PixelFormats.Gray32Float;

    // Get the number of bits-per-pixel for this format. Because
    // the format is "Gray32Float", the float value returned will be 32.
    int bpp = myPixelFormat.BitsPerPixel;

    // Get the collection of masks associated with this format.
    IList<PixelFormatChannelMask> myChannelMaskCollection = myPixelFormat.Masks;

    // Capture the mask info in a string.
    String stringOfValues = " ";
    foreach (PixelFormatChannelMask myMask in myChannelMaskCollection)
    {
        IList<byte> myBytesCollection = myMask.Mask;
        foreach (byte myByte in myBytesCollection)
        {
            stringOfValues = stringOfValues + myByte.ToString();
        }
    }

    // Return the PixelFormat which, for example, could be 
    // used to set the pixel format of a bitmap by using it to set
    // the DestinationFormat of a FormatConvertedBitmap.
    return myPixelFormat;
}

        Public Function createPixelFormat() As PixelFormat
            ' Create a PixelFormat object.
            Dim myPixelFormat As New PixelFormat()

            ' Make this PixelFormat a Gray32Float pixel format.
            myPixelFormat = PixelFormats.Gray32Float

            ' Get the number of bits-per-pixel for this format. Because
            ' the format is "Gray32Float", the float value returned will be 32.
            Dim bpp As Integer = myPixelFormat.BitsPerPixel

            ' Get the collection of masks associated with this format.
            Dim myChannelMaskCollection As IList(Of PixelFormatChannelMask) = (myPixelFormat.Masks)

            ' Capture the mask info in a string.
            Dim stringOfValues As String = " "
            Dim myMask As PixelFormatChannelMask
            For Each myMask In myChannelMaskCollection
                Dim myBytesCollection As IList(Of Byte) = myMask.Mask
                Dim myByte As Byte
                For Each myByte In myBytesCollection
                    stringOfValues = stringOfValues + myByte.ToString()
                Next myByte
            Next myMask

            ' Return the PixelFormat which, for example, could be 
            ' used to set the pixel format of a bitmap by using it to set
            ' the DestinationFormat of a FormatConvertedBitmap.
            Return myPixelFormat

        End Function 'createPixelFormat
    End Class
End Namespace 'ImagingSnippetGallery

Comentários

Uso do Atributo XAML

<object property="pixelFormat"/>  

Valores XAML

Pixelformat
Um dos formatos de pixel predefinidos definidos pela PixelFormats classe.

Propriedades

BitsPerPixel	Obtém o número de bpp (bits por pixel) para este PixelFormat.
Masks	Obtém uma coleção de máscaras de bits associadas a PixelFormat.

Métodos

Equals(Object)	Determina se o objeto especificado é igual ao objeto atual.
Equals(PixelFormat)	Determina se o formato de pixel é igual ao PixelFormat determinado.
Equals(PixelFormat, PixelFormat)	Determina se as instâncias PixelFormat especificadas são consideradas iguais.
GetHashCode()	Cria um código hash do valor Masks deste formato de pixel.
ToString()	Cria uma representação de cadeia de caracteres desse PixelFormat.

Operadores

Equality(PixelFormat, PixelFormat)	Compara duas instâncias de PixelFormat quanto à igualdade.
Inequality(PixelFormat, PixelFormat)	Compara a desigualdade de duas instâncias PixelFormat.

Confira também

• PixelFormats