c++ - I can't set windows controls using IUP with OpenCV's highgui

Question

Cheers, I'm coding a project with Tecgraf's IUP (iup-3.7_Win32_dll9_lib) and OpenCV 1.1pre1 on MSVC 2010.

In order to enable window's visual styles, I'm using this manifest file:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<assemblyIdentity
    version="9.0.0.0"
    processorArchitecture="x86"
    name="myapp.exe"
    type="win32"
/>
<description>My App</description>
<dependency>
    <dependentAssembly>
        <assemblyIdentity 
            type="win32" 
            name="Microsoft.Windows.Common-Controls" 
            version="6.0.0.0" 
            processorArchitecture="x86" 
            publicKeyToken="6595b64144ccf1df" 
            language="*" 
        />
    </dependentAssembly>
</dependency>
<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
    <security>
        <requestedPrivileges>
            <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
        </requestedPrivileges>
    </security>
</trustInfo>
</assembly>

This is producing a interface like this (which is ok):

But when I add a module to project which calls cvLoadImage() (from highgui), it turns into:

How can I fix it?

Regards.