I have found where this happens:
in qapplication_win.cpp
in QApplicationPrivate::initializeMultitouch_sys()
This calls takes up to 10 seconds:
iInkTablets->get_Count(&count);
Philippe
On Sun, 23 May 2010 14:07:07 +0200
Philippe <[email protected]> wrote:
> Under Windows 7-64, using Qt 32b.
> There is something strange I have never seen with earliers Qt versions.
> After a while, Qt applications (demo, assistant, linguist... from the
> pre-built commercial package) take a long while to open. Where it
> usually took 1 second to open, it now takes about 10 seconds. There is
> no special CPU activity during that time, and the computer ar fast (I
> can reproduce this on 3 different machines).
> Rebooting solves the problem, but sooner or later it appears again.
> Sometimes this goes away without rebooting.
> Never such thing with 4.6 on the same systems.
>
> Cumbersome for productivity!
>
> Philippe
>
>
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