http://bugs.winehq.org/show_bug.cgi?id=5329
Summary: Bug in BitBlt() implementation Product: Wine Version: unspecified Platform: Other OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: wine-gui AssignedTo: wine-bugs@winehq.org ReportedBy: kdntl@yahoo.fr
This bug is related to http://bugs.winehq.org/show_bug.cgi?id=4140.
This issue of wrong screen colors in the software Emu48 has been solved by replacing (in the source code of the win32 application) a BitBlt() call by a StretchBlt() call. This demonstrates than the bug is likely to be situated in the BitBlt() implementation of wine.
Here is a post of the author of emu48 for some other details: http://groups.google.fr/group/comp.sys.hp48/msg/51fd7d2f80efbc5d