[Ohrrpgce] SVN: james/7758 Fix io_putmouse implementation in gfx_directx

[subversion at HamsterRepublic.com]

james
2016-03-04 10:37:24 -0800 (Fri, 04 Mar 2016)
199
Fix io_putmouse implementation in gfx_directx
Was off just a tiny bit, which causes strange cursor behavior in the maptile editor tilepicker.

This fix avoids the problem in all of my testing so far
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U   wip/gfx_directx/gfx_directx.cpp
U   wip/gfx_directx.dll