http://bugs.winehq.org/show_bug.cgi?id=18885
Summary: Space bar doesn't work for "mantling" Product: Wine Version: 1.1.23 Platform: PC OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown AssignedTo: wine-bugs@winehq.org ReportedBy: michael@araneidae.co.uk
In Thief 2 and in System Shock 2 the space bar is used for "mantling", or climbing onto a barrier -- in both these games it's necessary to hold the space bar down until the maneuver is complete.
Unfortunately under wine this does not appear to work. My best guess is that the "holding" of the space bar is somehow being interrupted at the API level.