# Newsletter 52

DevFeed: [Newsletter 52](<https://devfeed.tech/articles/newsletter-52-32918.md>)

Original publisher: [Read original article](<https://reactos.org/blogs/newsletter-52/>)

Published: 2009-02-02T00:00:00Z

Content type: article

Language: en

Sources: [Front Page on ReactOS Website](<https://devfeed.tech/sources/front-page-on-reactos-website.md>)

Topics: [ReactOS](<https://devfeed.tech/topics/reactos.md>), [win32](<https://devfeed.tech/topics/win32.md>), [debug](<https://devfeed.tech/topics/debug.md>), [Firefox](<https://devfeed.tech/topics/firefox.md>)

Tags: [debug](<https://devfeed.tech/tags/debug.md>), [errors](<https://devfeed.tech/tags/errors.md>), [firefox](<https://devfeed.tech/tags/firefox.md>), [free](<https://devfeed.tech/tags/free.md>), [newsletter](<https://devfeed.tech/tags/newsletter.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [os](<https://devfeed.tech/tags/os.md>), [react](<https://devfeed.tech/tags/react.md>), [reactos](<https://devfeed.tech/tags/reactos.md>), [win32](<https://devfeed.tech/tags/win32.md>), [winapi](<https://devfeed.tech/tags/winapi.md>)

## AI overview

ReactOS Newsletter 52 reports ongoing work on the Win32 subsystem, including corrections to SetWindowExtEx and SetViewpointExtEx and their migration from win32k to gdi32. It also describes unresolved isotropic-mode problems, timer and message-queue issues affecting applications such as Firefox and GIMP, and continued work on WinDBG support.

## Source excerpt

More Win32 Work Timo Kreuzer continues his efforts to make the Win32 subsystem more correct, recently working on the functions SetWindowExtEx and SetViewpointExtEx. The first step was moving it out of win32k, where the operations were originally being carried out, and into gdi32, where they should be carried out. Jim Tabor had code in place which implemented them, but they needed some fixing. While not yet complete, Timo has corrected some of the errors.