input. This allows us to enable DGA mode, even when the system cursor was
 outside of the window when the grab was initiated.

Fixes Bugzilla #299, which has a more detailed explanation of the issue.

--HG--
branch : SDL-1.2
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%402231