Get (custom) return value of modal dialog?

[Terreox]

Ok i solved this problem on my own.
I just changed some things:

NewIncident *newincident = new NewIncident(this);
    if(!newincident->exec()){
        incSheet = newincident->getIncSheet();
        refresh(incSheet);
    }

NewIncident *newincident = new NewIncident(this);
    if(!newincident->exec()){
        incSheet = newincident->getIncSheet();
        refresh(incSheet);
    }

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I realised that exec() returns 0 in my program so i have to catch !newincident->exec() of course -.-'
Then i initialized a class member variable(incSheet) of type Incident with the return value of getIncSheet() <- returns all values i need
refresh() is only a function to refresh some element on ControlPanel.