Mark Harmstone hellas@burntcomma.com wrote:
Adds the undocumented structs to winuser.h which are needed for uxtheme to hook into user32. As researched by ReactOS: see https://www.reactos.org/wiki/Techwiki:RegisterUserApiHook
Referencing reactos as a source of the information makes it unlikely to improve the chances of including the patch in Wine. Moreover, as was already discussed many times, theme interface is completely undocumented and different between Windows versions, therefore it's very unlikely that there is an application that depends on the details of this interface, thus making it unnecessary to duplicate it in Wine.