[Feature] PrintHelper Multi-Window

[mabbond]

Hi, the PrintHelper class works like a charm in a single window app, but in a multiple windows app, it doesn't work properly because it uses the DispatcherHelper.ExecuteOnUIThreadAsync which calls the main thread and the printing happens in a different thread.

[ghost]

Thanks for submitting a new feature request! I've automatically added a vote 👍 reaction to help get things started. Other community members can vote to help us prioritize this feature in the future!

[Kyaa-dost]

@mabbond could you please add an image or clip of what you are seeing?

[mabbond]

@Kyaa-dost here is a screen shot of the app that I'm working on.

When I hit the print button it throws this error, because I try to invocate the printing dialog from the secondary screen it throws this error