Compositor.CreateHostBackdropBrush Method
Definition
Important
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Creates an instance of CompositionBackdropBrush that samples from the area behind the visual, before the window is drawn.
public:
virtual CompositionBackdropBrush ^ CreateHostBackdropBrush() = CreateHostBackdropBrush;CompositionBackdropBrush CreateHostBackdropBrush();public CompositionBackdropBrush CreateHostBackdropBrush();function createHostBackdropBrush()Public Function CreateHostBackdropBrush () As CompositionBackdropBrushReturns
Returns the created CompositionBackdropBrush.
Windows requirements
| Device family |
Windows 10 Creators Update (introduced in 10.0.15063.0)
|
| API contract |
Windows.Foundation.UniversalApiContract (introduced in v4.0)
|
Remarks
The standard backdrop brush samples the area immediately behind the visual where it is used. The host backdrop brush tells the compositor to sample from the area behind the visual, before the window is drawn. By default, the host backdrop brush is translucent and it hit-tests as opaque. The app cannot read the pixel data back.
The transparency of the host backdrop brush is a property the user can control from Settings or by using power policies.