Bitmap for UWP
Create メソッド (WindowRenderTarget)

C1.UWP.DX アセンブリ > C1.Util.DX.Direct2D 名前空間 > WindowRenderTarget クラス : Create メソッド
an instance of Factory
The rendering mode, pixel format, remoting options, DPI information, and the minimum DirectX support required for hardware rendering. For information about supported pixel formats, see {{Supported Pixel Formats and Alpha Modes}}.
The window handle, initial size (in pixels), and present options.
Creates an WindowRenderTarget, a render target that renders to a window.
シンタックス

パラメータ

factory
an instance of Factory
renderTargetProperties
The rendering mode, pixel format, remoting options, DPI information, and the minimum DirectX support required for hardware rendering. For information about supported pixel formats, see {{Supported Pixel Formats and Alpha Modes}}.
hwndProperties
The window handle, initial size (in pixels), and present options.
解説
When you create a render target and hardware acceleration is available, you allocate resources on the computer's GPU. By creating a render target once and retaining it as long as possible, you gain performance benefits. Your application should create render targets once and hold onto them for the life of the application or until the {{D2DERR_RECREATE_TARGET}} error is received. When you receive this error, you need to recreate the render target (and any resources it created).
参照

WindowRenderTarget クラス
WindowRenderTarget メンバ