BitmapSource.Create 方法

定义

命名空间:: System.Windows.Media.Imaging

程序集:: PresentationCore.dll

重要

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创建具有指定属性和选项的新 BitmapSource 项。

重载

名称	说明
Create(Int32, Int32, Double, Double, PixelFormat, BitmapPalette, Array, Int32)	从像素数组创建新 BitmapSource 项。
Create(Int32, Int32, Double, Double, PixelFormat, BitmapPalette, IntPtr, Int32, Int32)	从存储在非托管内存中的像素数组创建一个新 BitmapSource 值。

Create(Int32, Int32, Double, Double, PixelFormat, BitmapPalette, Array, Int32)

从像素数组创建新 BitmapSource 项。

public:
 static System::Windows::Media::Imaging::BitmapSource ^ Create(int pixelWidth, int pixelHeight, double dpiX, double dpiY, System::Windows::Media::PixelFormat pixelFormat, System::Windows::Media::Imaging::BitmapPalette ^ palette, Array ^ pixels, int stride);

public static System.Windows.Media.Imaging.BitmapSource Create(int pixelWidth, int pixelHeight, double dpiX, double dpiY, System.Windows.Media.PixelFormat pixelFormat, System.Windows.Media.Imaging.BitmapPalette palette, Array pixels, int stride);

static member Create : int * int * double * double * System.Windows.Media.PixelFormat * System.Windows.Media.Imaging.BitmapPalette * Array * int -> System.Windows.Media.Imaging.BitmapSource

Public Shared Function Create (pixelWidth As Integer, pixelHeight As Integer, dpiX As Double, dpiY As Double, pixelFormat As PixelFormat, palette As BitmapPalette, pixels As Array, stride As Integer) As BitmapSource

参数

pixelWidth: Int32

位图的宽度。

pixelHeight: Int32

位图的高度。

dpiX: Double

位图的水平点/英寸（dpi）。

dpiY: Double

位图的垂直点/英寸（dpi）。

pixelFormat: PixelFormat

位图的像素格式。

palette: BitmapPalette

位图的调色板。

pixels: Array

表示位图图像内容的字节数组。

stride: Int32

位图的步幅。

BitmapSource

BitmapSource从指定的像素数组创建。

示例

下面的示例演示如何使用此方法创建新的 BitmapSource方法。

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)

另请参阅

适用于

Create(Int32, Int32, Double, Double, PixelFormat, BitmapPalette, IntPtr, Int32, Int32)

从存储在非托管内存中的像素数组创建一个新 BitmapSource 值。

public:
 static System::Windows::Media::Imaging::BitmapSource ^ Create(int pixelWidth, int pixelHeight, double dpiX, double dpiY, System::Windows::Media::PixelFormat pixelFormat, System::Windows::Media::Imaging::BitmapPalette ^ palette, IntPtr buffer, int bufferSize, int stride);

[System.Security.SecurityCritical]
public static System.Windows.Media.Imaging.BitmapSource Create(int pixelWidth, int pixelHeight, double dpiX, double dpiY, System.Windows.Media.PixelFormat pixelFormat, System.Windows.Media.Imaging.BitmapPalette palette, IntPtr buffer, int bufferSize, int stride);

[<System.Security.SecurityCritical>]
static member Create : int * int * double * double * System.Windows.Media.PixelFormat * System.Windows.Media.Imaging.BitmapPalette * nativeint * int * int -> System.Windows.Media.Imaging.BitmapSource

Public Shared Function Create (pixelWidth As Integer, pixelHeight As Integer, dpiX As Double, dpiY As Double, pixelFormat As PixelFormat, palette As BitmapPalette, buffer As IntPtr, bufferSize As Integer, stride As Integer) As BitmapSource

参数

pixelWidth: Int32