PixelFormat 结构

定义

命名空间:

System.Windows.Media

程序集:

PresentationCore.dll

为图像和基于像素的图面定义像素格式。

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)

继承

Object

ValueType

PixelFormat

属性

TypeConverterAttribute SerializableAttribute

实现

IEquatable<PixelFormat>

示例

以下示例演示如何创建 PixelFormat 和查找其属性的值。

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

注解

XAML 属性用法

<object property="pixelFormat"/>  

XAML 值

pixelFormat
类定义的 PixelFormats 预定义像素格式之一。

属性

BitsPerPixel	获取此 PixelFormat 的每像素位数 (bpp)。
Masks	获取与 PixelFormat 关联的位掩码的集合。

方法

Equals(Object)	确定指定对象是否等于当前对象。
Equals(PixelFormat)	确定像素格式是否与给定的 PixelFormat 相等。
Equals(PixelFormat, PixelFormat)	确定指定的 PixelFormat 实例是否可视为相等的实例。
GetHashCode()	根据此像素格式的 Masks 值创建哈希代码。
ToString()	创建此 PixelFormat 的字符串表示形式。

运算符

Equality(PixelFormat, PixelFormat)	比较两个 PixelFormat 实例是否相等。
Inequality(PixelFormat, PixelFormat)	比较两个 PixelFormat 实例是否不相等。

另请参阅

• PixelFormats