D3DImage.CopyBackBuffer Method

Definition

Creates a software copy of the D3DImage.

[System.Security.SecurityCritical]
[System.Security.SecurityTreatAsSafe]
protected internal virtual System.Windows.Media.Imaging.BitmapSource CopyBackBuffer ();
protected internal virtual System.Windows.Media.Imaging.BitmapSource CopyBackBuffer ();

Returns

A BitmapSource that is a software copy of the current state of the back buffer; otherwise, null if the back buffer cannot be read.

Attributes

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 null.

Applies to

Produkt Verzie
.NET Framework 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9

See also