WriteableBitmap Constructors
Definition
Important
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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.
public:
WriteableBitmap(System::Windows::Media::Imaging::BitmapSource ^ source);[System.Security.SecurityCritical]
public WriteableBitmap (System.Windows.Media.Imaging.BitmapSource source);public WriteableBitmap (System.Windows.Media.Imaging.BitmapSource source);[<System.Security.SecurityCritical>]
new System.Windows.Media.Imaging.WriteableBitmap : System.Windows.Media.Imaging.BitmapSource -> System.Windows.Media.Imaging.WriteableBitmapnew System.Windows.Media.Imaging.WriteableBitmap : System.Windows.Media.Imaging.BitmapSource -> System.Windows.Media.Imaging.WriteableBitmapPublic Sub New (source As BitmapSource)Parameters
- source
- BitmapSource
The BitmapSource to use for initialization.
- Attributes
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.
Applies to
WriteableBitmap(Int32, Int32, Double, Double, PixelFormat, BitmapPalette)
Initializes a new instance of the WriteableBitmap class with the specified parameters.
public:
WriteableBitmap(int pixelWidth, int pixelHeight, double dpiX, double dpiY, System::Windows::Media::PixelFormat pixelFormat, System::Windows::Media::Imaging::BitmapPalette ^ palette);[System.Security.SecurityCritical]
public WriteableBitmap (int pixelWidth, int pixelHeight, double dpiX, double dpiY, System.Windows.Media.PixelFormat pixelFormat, System.Windows.Media.Imaging.BitmapPalette palette);public WriteableBitmap (int pixelWidth, int pixelHeight, double dpiX, double dpiY, System.Windows.Media.PixelFormat pixelFormat, System.Windows.Media.Imaging.BitmapPalette palette);[<System.Security.SecurityCritical>]
new System.Windows.Media.Imaging.WriteableBitmap : int * int * double * double * System.Windows.Media.PixelFormat * System.Windows.Media.Imaging.BitmapPalette -> System.Windows.Media.Imaging.WriteableBitmapnew System.Windows.Media.Imaging.WriteableBitmap : int * int * double * double * System.Windows.Media.PixelFormat * System.Windows.Media.Imaging.BitmapPalette -> System.Windows.Media.Imaging.WriteableBitmapPublic Sub New (pixelWidth As Integer, pixelHeight As Integer, dpiX As Double, dpiY As Double, pixelFormat As PixelFormat, palette As BitmapPalette)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.
- Attributes
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.
