ShowownedPopups

When I use showownedopoups function for IE and set it to false I still get popup windows. heres the code, I don't get any errors it just seems like nothing happens.

Code:

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int popup::disablepops()
{
        BOOL val;
        HWND hwnd;
        DWORD err;

        hwnd = FindWindow("IEFrame",NULL);
        val = ShowOwnedPopups(hwnd,FALSE);
       
        if(val==0){
                err = GetLastError();
                cout<<"Error # " << err;
        }
        return 0;
}

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