Xpra: Ticket #998: cursors of any size on win32

Split from #976, related to #734.

See ticket:976#comment:12.

Links claiming we can only have fixed size (32x32 or 64x64 on high dpi displays):

That said, I also found: (dead link: https://support.microsoft.com/en-us/kb/307213 was Windows XP icon and cursor support) which states: The system also provides the SetSystemCursor API function that you can use to change the system cursor for specific categories. You can use this function to set a cursor of any size. However, you must call the function programmatically, and you can only use it to set a cursor for a specific category. You cannot use it to make all cursors on the system the same size.

Mon, 23 Jan 2017 09:54:59 GMT - Antoine Martin: description, milestone changed

Mon, 07 May 2018 05:40:45 GMT - Antoine Martin: status, milestone changed

Tue, 21 Aug 2018 14:42:53 GMT - Antoine Martin: status, description changed; resolution set

SetSystemCursor changes are system-wide apparently, and those don't even work in windows 10.

Sat, 23 Jan 2021 05:12:02 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/998