This is a package of changes that fix https://bugs.winehq.org/show_bug.cgi?id=59976 and possibly other issues. It is both a usability and a compatibility improvement. Please see the commit messages for further details. Feedback on if anything here is reasonable to write conformance tests for would be appreciated. I don't know if it makes sense for the IPC things. I did a bunch of manual testing of how Windows and WINE behave using two small test programs: [appbar.c](/uploads/49ed846bdbd32bfecdb0603304f5c332/testapp.c) and [workarea.c](/-/project/5/uploads/ab8f82c70d8df1e337e8b15be5f32cab/workarea.c). --- Before these changes: {width="729" height="600"} {width="729" height="600"} Note how: * The Office 97 Shortcut Bar is covering up part of the taskbar. This is worse if it's docked to the right (which is the default), because then it covers up system tray icons. * The maximized Word 97 window is covering up both the taskbar and the Shortcut Bar. After these changes: {width="729" height="600"} You'll notice that the Word window here is still overhanging both the taskbar and the Shortcut Bar. I believe that's correct behavior as maximized windows always overhang the screen, and it just looks weird because WINE doesn't support `WS_EX_TOPMOST` yet in desktop mode. -- v7: explorer: Update system work area rect to exclude taskbar and appbars explorer: Account for the actual size of the taskbar if it is visible win32u: Apply work area changes to virtual desktop monitor serverwide https://gitlab.winehq.org/wine/wine/-/merge_requests/11699