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## WPF Printing Stack Update
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### Scope
Edge
### Version Introduced
4.7
### Source Analyzer Status
NotPlanned
### Change Description
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WPF's Printing APIs using < xref:System.Printing.PrintQueue ? displayProperty = name >
now call Window's Print Document Package API in favor of the now deprecated XPS
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Print API. The change was made with serviceability in mind; neither users nor developers
should see any changes in behavior or API usage. The new printing
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stack is enabled by default when running in Windows 10 Creators Update. The old
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printing stack will still continue to work just as before in older Windows
versions.
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- [ ] Quirked
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- [ ] Build-time break
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### Recommended Action
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To use the old stack in Windows 10 Creators Update, set the `UseXpsOMPrinting` REG_DWORD value of the `HKEY_CURRENT_USER\Software\Microsoft\.NETFramework\Windows Presentation Foundation\Printing` registry key to `1` .
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### Affected APIs
Not detectable via API analysis
### Category
Windows Presentation Foundation (WPF)
### Original Bug
https://devdiv.visualstudio.com/DevDiv/_workitems?id=113979
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<!-- breaking change id: 173 -->
