BitmapSource.Create 方法

定義

命名空間:

System.Windows.Media.Imaging

組件:

PresentationCore.dll

建立具有所指定屬性和選項的新 BitmapSource。

多載

Create(Int32, Int32, Double, Double, PixelFormat, BitmapPalette, Array, Int32)	從像素陣列建立新的 BitmapSource。
Create(Int32, Int32, Double, Double, PixelFormat, BitmapPalette, IntPtr, Int32, Int32)	從儲存在 Unmanaged 記憶體內的像素陣列，建立新的 BitmapSource。

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

從像素陣列建立新的 BitmapSource。

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

參數

pixelWidth

Int32

點陣圖的寬度。

pixelHeight

Int32

點陣圖的高度。

dpiX

Double

點陣圖的水準點 (DPI) 。

dpiY

Double

點陣圖的垂直點 (DPI) 。

pixelFormat

PixelFormat

點陣圖的像素格式。

palette

BitmapPalette

點陣圖的調色盤。

pixels

Array

位元組的陣列，表示點陣圖影像的內容。

stride

Int32

點陣圖的步距。

傳回

BitmapSource

從指定的像素陣列建立的 BitmapSource。

範例

下列範例示範如何使用這個方法來建立新的 BitmapSource 。

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)

另請參閱

• PixelFormats
• BitmapPalette

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

從儲存在 Unmanaged 記憶體內的像素陣列，建立新的 BitmapSource。

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);

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);

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

參數

pixelWidth

Int32

點陣圖的寬度。

pixelHeight

Int32

點陣圖的高度。

dpiX

Double

點陣圖的水準點 (DPI) 。

dpiY

Double

點陣圖的垂直點 (DPI) 。

pixelFormat

PixelFormat

點陣圖的像素格式。

palette

BitmapPalette

點陣圖的調色盤。

buffer

IntPtr

nativeint

在記憶體內含有點陣圖資料之緩衝區的指標。

bufferSize

Int32

緩衝區的大小。

stride

Int32

點陣圖的步距。

傳回

BitmapSource

從 Unmanaged 記憶體內的像素陣列建立的 BitmapSource。