PixelFormat 結構

定義

命名空間:

System.Windows.Media

組件:

PresentationCore.dll

定義影像的像素格式和以像素為基礎的表面。

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)

繼承

Object

ValueType

PixelFormat

屬性

TypeConverterAttribute SerializableAttribute

實作

IEquatable<PixelFormat>

範例

下列範例示範如何建立 PixelFormat 並尋找其屬性的值。

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

備註

XAML Attribute Usage

<object property="pixelFormat"/>  

XAML 值

pixelFormat
類別所 PixelFormats 定義的其中一個預先定義像素格式。

屬性

BitsPerPixel	取得這個 PixelFormat 的每一像素位元數 (bpp) 數目。
Masks	取得與 PixelFormat 相關聯的位元遮罩集合。

方法

Equals(Object)	判斷指定的物件是否等於目前的物件。
Equals(PixelFormat)	判斷像素格式是否等於指定的 PixelFormat。
Equals(PixelFormat, PixelFormat)	判斷指定的 PixelFormat 執行個體是否視為相等。
GetHashCode()	從這個像素格式的 Masks 值建立雜湊程式碼。
ToString()	建立這個 PixelFormat 的字串表示。

運算子

Equality(PixelFormat, PixelFormat)	比較兩個 PixelFormat 執行個體是否相等。
Inequality(PixelFormat, PixelFormat)	比較兩個 PixelFormat 執行個體是否不相等。

另請參閱

• PixelFormats