Comment on Capy – Cross-platform library for making native GUIs in ZigparentComments−Lammy4yMaybe some of those variations are due to running the same Excel on different versions of Windows, and it conforming to what it thinks native looks like on each. It's hard to tell.The Office apps have used their own controls for a long time. Check out Word 97 running on Windows NT 3.51 for example: http://toastytech.com/guis/nt351word.png / http://toastytech.com/guis/nt3513.html−pjmlp4yUsually the office controls are integrated into Windows common controls in a later version.In the past they would either land in Win32 classes or updated MFC.The ribbon introduced by Office eventually became available as a COM UI library.
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The Office apps have used their own controls for a long time. Check out Word 97 running on Windows NT 3.51 for example: http://toastytech.com/guis/nt351word.png / http://toastytech.com/guis/nt3513.html
Usually the office controls are integrated into Windows common controls in a later version.
In the past they would either land in Win32 classes or updated MFC.
The ribbon introduced by Office eventually became available as a COM UI library.