Creates a software copy of the D3DImage.
Assembly: PresentationCore (in PresentationCore.dll)
Syntax . . :: . BitmapSource
A BitmapSource that is a software copy of the current state of the back buffer; otherwise,null Nothing nullptr a null reference (Nothing in Visual Basic) if the back buffer cannot be read.
Protected Friend Overridable Function CopyBackBuffer As BitmapSourceprotected internal virtual BitmapSource CopyBackBuffer()protected public:
virtual BitmapSource^ CopyBackBuffer()abstract CopyBackBuffer : unit -> BitmapSource
override CopyBackBuffer : unit -> BitmapSource Return Value
Type: System.Windows.Media.ImagingA BitmapSource that is a software copy of the current state of the back buffer; otherwise,
Remarks
The CopyBackBuffer method is called by clients such as the printing system and the RenderTargetBitmap class.
Optionally override the CopyBackBuffer method to implement custom logic and return a different BitmapSource. For example, you can return a placeholder BitmapSource if the default CopyBackBuffer implementation returns
.NET Framework Security
- SecurityPermission
for access to unmanaged resources. Security action: Demand. Associated enumeration: SecurityPermissionFlag
. . :: . UnmanagedCode
Platforms
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.