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BitmapSource.Create Metoda

Definicja

Tworzy nowy BitmapSource obiekt z określonymi właściwościami i opcjami.

Przeciążenia

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

Tworzy nowy BitmapSource element na podstawie tablicy pikseli.

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

Tworzy nowy BitmapSource element na podstawie tablicy pikseli przechowywanych w pamięci niezarządzanej.

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

Tworzy nowy BitmapSource element na podstawie tablicy pikseli.

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

Parametry

pixelWidth
Int32

Szerokość mapy bitowej.

pixelHeight
Int32

Wysokość mapy bitowej.

dpiX
Double

Poziome kropki na cal (dpi) mapy bitowej.

dpiY
Double

Pionowe kropki na cal (dpi) mapy bitowej.

pixelFormat
PixelFormat

Format pikseli mapy bitowej.

palette
BitmapPalette

Paleta mapy bitowej.

pixels
Array

Tablica bajtów reprezentująca zawartość obrazu mapy bitowej.

stride
Int32

Krok mapy bitowej.

Zwraca

Obiekt BitmapSource utworzony na podstawie określonej tablicy pikseli.

Przykłady

W poniższym przykładzie pokazano, jak użyć tej metody w celu utworzenia nowego BitmapSourceelementu .

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)

Zobacz też

Dotyczy

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

Tworzy nowy BitmapSource element na podstawie tablicy pikseli przechowywanych w pamięci niezarządzanej.

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);
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
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

Parametry

pixelWidth
Int32

Szerokość mapy bitowej.

pixelHeight
Int32

Wysokość mapy bitowej.

dpiX
Double

Poziome kropki na cal (dpi) mapy bitowej.

dpiY
Double

Pionowe kropki na cal (dpi) mapy bitowej.

pixelFormat
PixelFormat

Format pikseli mapy bitowej.

palette
BitmapPalette

Paleta mapy bitowej.

buffer
IntPtr

nativeint

Wskaźnik do buforu zawierającego dane mapy bitowej w pamięci.

bufferSize
Int32

Rozmiar buforu.

stride
Int32

Krok mapy bitowej.

Zwraca

Element BitmapSource utworzony na podstawie tablicy pikseli w pamięci niezarządzanej.

Atrybuty

Dotyczy