Add support for MDICREATESTRUCT conversion for 16-bit windows

Alexandre Julliard julliard at
Thu Jan 22 23:16:15 CST 2004

Dmitry Timoshkov <dmitry at> writes:

> I've got a bug report that after my MDI rewrite some 16-bit MDI app
> stopped to work. That's not a surprise at all. The surprise is that
> STRUCT32_xxx conversion helpers didn't cope correctly with 16-bit
> hInstance and actually that caused a 16-bit app to misbehave in
> the first place. I had to use GetExePtr() because MapHModuleSL checks
> for NE_FFLAGS_WIN32 (why?) and bails out.

Using GetExePtr is going to return the wrong instance once we get back
to 16-bit code. The instance handles are actually not supposed to be
converted at all, we just expand the 16-bit ones to 32-bit. What was
the problem with your 16-bit app?

Alexandre Julliard
julliard at

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