WriteableBitmap Constructors

Definition

Namespace:

System.Windows.Media.Imaging

Assembly:

PresentationCore.dll

Initializes a new instance of the WriteableBitmap class.

Overloads

WriteableBitmap(BitmapSource)	Initializes a new instance of the WriteableBitmap class using the given BitmapSource.
WriteableBitmap(Int32, Int32, Double, Double, PixelFormat, BitmapPalette)	Initializes a new instance of the WriteableBitmap class with the specified parameters.

WriteableBitmap(BitmapSource)

Initializes a new instance of the WriteableBitmap class using the given BitmapSource.

C#

public WriteableBitmap(System.Windows.Media.Imaging.BitmapSource source);

Parameters

source

BitmapSource

The BitmapSource to use for initialization.

Remarks

The WriteableBitmap(Int32, Int32, Double, Double, PixelFormat, BitmapPalette) constructor is preferred over using this constructor.

If source does not use a natively supported bitmap format, format conversions are applied for each frame update, which reduces performance.

WriteableBitmap(Int32, Int32, Double, Double, PixelFormat, BitmapPalette)

Initializes a new instance of the WriteableBitmap class with the specified parameters.

C#

public WriteableBitmap(int pixelWidth, int pixelHeight, double dpiX, double dpiY, System.Windows.Media.PixelFormat pixelFormat, System.Windows.Media.Imaging.BitmapPalette palette);

Parameters

pixelWidth

Int32

The desired width of the bitmap.

pixelHeight

Int32

The desired height of the bitmap.

dpiX

Double

The horizontal dots per inch (dpi) of the bitmap.

dpiY

Double

The vertical dots per inch (dpi) of the bitmap.

pixelFormat

PixelFormat

The PixelFormat of the bitmap.

palette

BitmapPalette

The BitmapPalette of the bitmap.

Remarks

The preferred values for pixelFormat are Bgr32 and Pbgra32. These formats are natively supported and do not require a format conversion. Other pixelFormat values require a format conversion for each frame update, which reduces performance.