[Bug 21475] TI Interactive application fails when attempting to display the TI math palette
wine-bugs at winehq.org
wine-bugs at winehq.org
Sun Jan 24 19:28:34 CST 2010
http://bugs.winehq.org/show_bug.cgi?id=21475
--- Comment #2 from Andrew Nguyen <arethusa26 at gmail.com> 2010-01-24 19:28:33 ---
Interface {5af21a82-ca6e-11d2-9613-004033a5109d} is indeed registered. Some
added traces to OleCreate show that the issue lies in
dlls/ole32/ole2.c:2416-2421:
if (SUCCEEDED(hres2))
{
DWORD dwConnection;
hres = IOleCache_Cache(pOleCache, pFormatEtc, ADVF_PRIMEFIRST,
&dwConnection);
IOleCache_Release(pOleCache);
}
with outcome:
trace:ole:OleCreate IUnknown_QueryInterface hres = 0x0
trace:ole:DataCache_Cache ((nil), 0x2, 0x32e908)
trace:ole:OleCreate IOleCache_Cache hres = 0x80070057
trace:ole:OleCreate failure
It seems that the application passes OLERENDER_DRAW for renderopt but NULL for
pFormatEtc, causing the IOleCache_Cache call to fail. Hacking the particular
code snippet to ignore the return value of IOleCache_Cache allows the palette
to be displayed.
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