None = EmptyClipboard()
The EmptyClipboard function empties the clipboard and frees handles to data in the clipboard. The function then assigns ownership of the clipboard to the window that currently has the clipboard open.
CommentsBefore calling EmptyClipboard, an application must open the clipboard by using the OpenClipboard function. If the application specifies a NULL window handle when opening the clipboard, EmptyClipboard succeeds but sets the clipboard owner to NULL.
Win32 API References
Return ValueIf the function succeeds, the return value is None.
If the function fails, win32api.error is raised with the GetLastError info.