[Xorg] [Bug 285] New: XSelectExtensionEvent does not work on 64-Bit machines

bugzilla-daemon at pdx.freedesktop.org bugzilla-daemon at pdx.freedesktop.org
Mon Mar 8 02:42:37 PST 2004


           Summary: XSelectExtensionEvent does not work on 64-Bit machines
           Product: xorg
           Version: unspecified
          Platform: DEC
        OS/Version: OSF/1
            Status: NEW
          Severity: critical
          Priority: P2
         Component: xlib
        AssignedTo: xorg at freedesktop.org
        ReportedBy: luik at orthogon.de

XEventClass is typedef'd as an "unsigned long", therefore, on an
Alpha, this is a 64-bit long cardinal.  On the other hand, the X11
protocol uses a CARD32 to represent the event class.  Therefore,
library calls must properly convert from "unsigned long" to "CARD32".
This is not properly done in lib/Xi/XSelect.c, where `Data' is used to
copy from client data to the X request.  This is incorrect.  `Data32'
must be used instead, as it is already done in all other places,
e.g. in lib/Xi/XChgProp.c

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