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A UWP app can be made the default app to open for a certain type of file. It works great. However, Windows File Explorer's preview pane does not use the default app. Could anyone offer a tip on how to make a UWP app be used by the preview pane of the File Explorer?
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Could you please tell me which preview pane are you talking about? Do you mean the open with pane when you right-click on a file or something like the following image?
I meant this preview pane of the file explorer:
Preview handlers are done in C++ Desktop apps (DLL) : Preview Handlers and Shell Preview Host
One of the MS samples : C++ Windows Shell preview handler
Thank you. If I understand it correctly, it has to be a separate dll file. A UWP app cannot be made a preview handler.
Maybe with "Desktop Bridge", but I did not test...