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main.obj:-1: Error:LNK2019: unresolved external symbol __imp__ChangeDisplaySettingsW@8 referenced in function _main

#include <QtGui/QApplication>
#include "mainwindow.h"
#include <windows.h>

#include "./gamecontrols/dataexchange.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    DEVMODE dm;
        memset(&dm,0,sizeof(DEVMODE));
        dm.dmSize=sizeof(DEVMODE);
        dm.dmPelsWidth=1024;
        dm.dmPelsHeight=768;
        dm.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT|DM_DISPLAYFREQUENCY;
    ChangeDisplaySettings ( &dm, CDS_FULLSCREEN );

    MainWindow w;
    w.show();

    return a.exec();
}