[solved] Passing QVector between forms

[KeineAhnung]

Hi there,

my program is slowly growing and I start getting into problems manage the user input. To structure the program I started to create new windows for special task. So far I managed to communicate between the windows using signals and slots but now I am looking for a method to have a QVector available in several windows.
I already created a support file with functions I need in several forms:
support.h

#ifndef SUPPORT_H
#define SUPPORT_H
 
#include <QDateTime>
 
namespace support {
 
    int w20();
    int w6();
 
}
#endif // SUPPORT_H

#ifndef SUPPORT_H
#define SUPPORT_H

#include <QDateTime>

namespace support {

    int w20();
    int w6();

}
#endif // SUPPORT_H

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If I declare the QVector, from a custom class, here, would it be available in all forms that include the support file?

Thanks for looking into this!