OpacityMask missing in UWP

Question

Any easy way to apply OpacityMask to a UI object in UWP XAML?

I used to do that in WPF but appears to be missing in UWP.

Please, avoid the offensive tone... StackOverflow rules are just trying to achieve a good Q&A quality. — Martin Zikmund, Jan 18 '18 at 21:05

score 4 · Accepted Answer · answered Jan 18 '18 at 21:20

You can partially replicate this functionality, but not in an especially easy way. Windows Composition API offers a similar functionality where you can define a CompositionMaskBrush with which you will "paint over" the UI object to achieve a opacity mask effect.

There is an example as the solution of a GitHub issue that demonstrates such process. The same user also asked on StackOverflow.

You can also check out the CompositionProToolkit that might simplify implementing this.

OpacityMask missing in UWP

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