- Now our deskmon.cpl extension works on Windows XP and 2003
and does open the monitor device properties correctly.
- Also "Properties" button should be disabled
when no Device Instance ID found for the monitor.
- Make sure the DWLP_* values are correct on _WIN64
- Don't use the DWL_* constants, they are not portable. Enforce this by removing them entirely from winuser.h
- Make sure Get/SetWindowLong*Ptr* is used and pointers are not truncated to LONG