windows runtime - How to display UIElement but without UI interactions (to touches, clicks, ...) -

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i add kind of watermark on page in application : watermark uielement (a canvas instance partial opacity) on top of others controls.

and want be "transparent" touches/clicks/gestures. "transparent", mean controls behind should act touches/clicks/gestures. instance if watermark above kind of document viewer, can still use swipe navigate document viewer (across watermark canvas).

in different attempts (i tried manipulationmode, pointerpressed, ...) watermark either not visible or either blocking touches/clicks/gestures.

unfortunately, there isn't way in windows 8.1 application place xaml content on webview without obstructing mouse/gestures passed. while using ishittestvisible correct choice, due nature of how webview integrated, not work.

(this not work in current builds of windows 10.)

the other option may not desirable manipulate html content, invokingscriptasync , adding html img element body dynamically.


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