http://bugs.winehq.org/show_bug.cgi?id=3048
--- Comment #18 from Igor Tarasov tarasov.igor@gmail.com 2009-04-17 16:38:31 --- (In reply to comment #7)
The up/down arrows problem only applies to cspy 1.0, it works in cspy 2.0. What's interesting is the screenshot of cspy 1.0 in comment 3 has two up/down controls. The one in the control box is broken but the one just above "return value" works fine.
Here is the problem: the only difference in these two controls is in one style: UDS_AUTOBUDDY. If it is not set, wine won't display the arrows, while native version would. Try setting this style and you'll see that arrows will appear.
I am not into UpDown control code, maybe somebody familiar with it would fix this.