This bridges the 2 currently existing attribute types for the newly added QAccessibleAttributesInterface to UIA. As described in the AT-SPI bridge implementation already, QAccessible::Attribute::Level semantically matches the "aria-level" ARIA attribute, and is mapped to a "level" property for the UIA_AriaPropertiesPropertyId as described in the Core Accessibility API Mappings specification for both, headings [1] and non-headings [2]. Map all attributes set in QAccessible::Attribute::Custom to that property as well, keeping key and value as they are. As described in the UIA Element Properties Identifiers doc [3] for UIA_AriaPropertiesPropertyId: > AriaProperties is a collection of Name/Value pairs with > delimiters of = (equals) and ; (semicolon), for example, > "checked=true;disabled=false". In addition, if the level attribute is set for an object of role heading, report the corresponding StyleId_Heading for UIA_StyleIdAttributeId, as also described in the Core Accessibility API Mappings spec [1]. For MingW, add UIA_StyleIdAttributeId and StyleId_Heading<NUMBER> defines to qwindowsuiautomation.h, as the MingW headers apparently don't have them yet (see log of failed MingW builds without those defines: [4] [5]). [1] https://www.w3.org/TR/core-aam-1.2/#ariaLevelHeading [2] https://www.w3.org/TR/core-aam-1.2/#ariaLevel [3] https://learn.microsoft.com/en-us/windows/win32/winauto/uiauto-automation-element-propids [4] https://testresults.qt.io/logs/qt/qtbase/95edcdf493fedcc1ea8f8e824952bdb7c3a34ade/WindowsWindows_11_23H2x86_64WindowsWindows_11_23H2x86_64Clangqtci-windows-11_23H2-x86_64-52-70a4f4Sccache_UseConfigure/051e46739b880c22b4046471996739d0ea38dfd2/build_1716364832/log.txt.gz [5] https://testresults.qt.io/logs/qt/qtbase/c62cb39d9177e0ea724751e6346717855c91b2c7/WindowsWindows_10_22H2x86_64WindowsWindows_10_22H2x86_64Mingwqtci-windows-10_22H2-x86_64-51-30b063Sccache_UseConfigure_WarningsAreErrors/b8e624167842d77c2f66d5bb28543b39336b4b80/build_1716370445/log.txt.gz Fixes: QTBUG-119057 Change-Id: I00b15e95c35c0f31ba34161bc061a3085fc28682 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>