Parameters for taskbar.setThumbnailButtons. Install the thumbnail toolbar shown on the taskbar preview. Windows lets a window install it once; change the buttons afterwards with taskbar.updateButton.
taskbar.setThumbnailButtons
taskbar.updateButton
Buttons in display order, at most seven. A longer list fails the whole call; it is never truncated.
Parameters for
taskbar.setThumbnailButtons. Install the thumbnail toolbar shown on the taskbar preview. Windows lets a window install it once; change the buttons afterwards withtaskbar.updateButton.