winemac: Don't generate scroll wheel events for axes with 0 delta.

[Ken Thomases]

Fixes an issue where Visio 2010 reacts to a vertical scroll by scrolling
diagonally.
---
dlls/winemac.drv/mouse.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)

-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0002-winemac-Don-t-generate-scroll-wheel-events-for-axes-.patch
Type: text/x-patch
Size: 1545 bytes
Desc: not available
URL: <http://www.winehq.org/pipermail/wine-patches/attachments/20130826/e8de1375/attachment.bin>