[Qt-interest] Hi Trolls, I have a problem of cohabitation between Qt 4.3.4 and Qt 4.7

[Fabio Giovagnini]

Hi All, I try to explain better.

I distribute a tools in source version abd binary version together.
the binary version has the following folders' structure:
<install_DIR>\
tool
plugins
qtlib

and the nullsoft installer add to the system path <install_DIR>\qtlib
to make the tool runnable

Well, now I have a version based on qt-4.3.4 and another version of the same 
tool based on qt-4.7

If I install before teh qt-4.3.4 based one, and later the qt-4.7 based one ; 
the last doesn't work telling me the application cannot find a function in 
QtCore4.dll

This is right becouse I have first in the PATH the folder containing the 
qt-4.3.4 version of QtCore4.dll and after the qt-4.7 version of QtCore4.dll 
with the same name. So the dynamic linker loads teh first one ignoring the 
second one being the right one.

How can I approach this problem.

Where could I study deeper about qt version cohabitation?

Thanks a lot

-- 
Ing. Fabio Giovagnini

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