CompositionGraphicsDevice.CaptureAsync 方法

定義

命名空間:

Windows.UI.Composition

擷取各種來源元素，包括應用程式所擁有的視覺化樹狀結構，到組合介面。

public:
 virtual IAsyncOperation<ICompositionSurface ^> ^ CaptureAsync(Visual ^ captureVisual, SizeInt32 size, DirectXPixelFormat pixelFormat, DirectXAlphaMode alphaMode, float sdrBoost) = CaptureAsync;

/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<ICompositionSurface> CaptureAsync(Visual const& captureVisual, SizeInt32 const& size, DirectXPixelFormat const& pixelFormat, DirectXAlphaMode const& alphaMode, float const& sdrBoost);

[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<ICompositionSurface> CaptureAsync(Visual captureVisual, SizeInt32 size, DirectXPixelFormat pixelFormat, DirectXAlphaMode alphaMode, float sdrBoost);

function captureAsync(captureVisual, size, pixelFormat, alphaMode, sdrBoost)

Public Function CaptureAsync (captureVisual As Visual, size As SizeInt32, pixelFormat As DirectXPixelFormat, alphaMode As DirectXAlphaMode, sdrBoost As Single) As IAsyncOperation(Of ICompositionSurface)

參數

captureVisual

Visual

要擷取的視覺效果。

size

SizeInt32

表面的圖元大小。

pixelFormat

DirectXPixelFormat

表面的像素格式。

alphaMode

DirectXAlphaMode

應如何處理 Alpha 色板。

sdrBoost

Single

float

提升 SDR 的數量。

傳回

IAsyncOperation<ICompositionSurface>

在成功完成時傳回 的 ICompositionSurface 非同步作業。

屬性

RemoteAsyncAttribute

Windows 需求

裝置系列	Windows 10, version 2104 (已於 10.0.20348.0 引進)
API contract	Windows.Foundation.UniversalApiContract (已於 v12.0 引進)