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Is WPF resolution independent?

April 26, 2017independent resolution WPF

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Is WPF resolution independent?

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This is an occasionally confusing aspect of WPF. Thank Charles Petzold for his concise and definitive answer: The Windows user is ultimately responsible for setting an assumed resolution of the video display. This is done in the Display Properties applet. Commonly this assumed resolution is 96 or 120 DPI but it could be set higher. This has been the case for several past versions of Windows and it remains unchanged in Vista. The assumed resolution is independent of the actual resolution of the monitor. The user can try to set the assumed resolution equal to the actual resolution, but there is little reason for it. But again, nothing has changed with Vista. WPF programming involves device-independent units of 1/96th inch. If the assumed resolution of the video display is 96 DPI, then WPF DIUs correspond directly with pixels. If the assumed resolution of the video display is 120 DPI, then WPF DIUs are equal to 1-1/3 pixels. Functionally, there is no real change. For decades, Windows prog