Author: Adam Johnson <AdamJohnso@gmail.com>
Date: Sun Mar 25 21:08:57 2018 -0400
Add workaround for mouse handling bug in Win10 FCU
Windows 10 Fall Creators Update changed the behavior of SetCursorPos,
which no longer sends the expected WM_MOUSEMOVE message when
recentering the cursor. This adds a function to detect affected
versions of Windows and flags the necessity to manually send our own
message.
This workaround currently only detects the known affected version of
Win10, in the hope that it will be fixed and no further attention
will be required. If this regression is not fixed, additional Win10
versions can be added.
This fixes the irregular dark fringes around light text when not exactly pixel-aligned that are caused by independent interpolation of color and alpha. It also makes calculations simpler for things to come.
Include stddef.h to avoid a redefinition problem with offsetof(s,m).
Remove wchar_t typedef. This is a native type is MSVC10 and should be appropriately defined with the inclusion of stddef.h in earlier versions.
