Unverified50% confidenceFactExact time
副屏扩展应用通过虚拟显示适配器加视频流传输实现，Windows通过IddCx框架、macOS通过CoreDisplay私有框架或第三方驱动、Linux利用DRM/KMS子系统创建虚拟输出
1
Sources
50%
Confidence
Long-term
Relevance
8/28/2026
First Seen
Sources
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Unverified副屏扩展应用（如Duet、spacedesk、Luna）通过虚拟显示适配器加视频流传输实现，支持显示扩展但不支持输入共享78% similarUnverifiedMulti-application independent window mirroring requires creating an independent Virtual Display for each application and encoding it into an independent H.264/H.265 video stream via MediaCodec, which places higher demands on CPU/GPU resources and network bandwidth compared to full-screen capture with MediaProjection.68% similar
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