QStandardItemModel Transfer over SIGNAL/SLOT

[Pschnot1000]

Hey,

I want to send my TableView QstandardItemModel from my DialogWindow to my Main Window.
My problem is that the Table View in the mainWindow show me an empty table. I probally do something wrong with the pointers, but I am not sure.
Need Help to send the model or maybe there is another method to send the content of the Dialog Table?
Here is my Code:

Signal - Slot connection in the main window:

Pattern_creator pattern_creator(colorNames);
QObject::connect(&pattern_creator, SIGNAL(valueChanged(int,int,QStandardItemModel*)), this, SLOT(PatternCreator(int,int,QStandardItemModel*)));

Pattern_creator pattern_creator(colorNames);
QObject::connect(&pattern_creator, SIGNAL(valueChanged(int,int,QStandardItemModel*)), this, SLOT(PatternCreator(int,int,QStandardItemModel*)));

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The function in the main window:

void Pattern::PatternCreator(int row, int column, QStandardItemModel *model_test)
{
    ui->tableView_test->setModel(model_test);
   .
   .
   .
}

void Pattern::PatternCreator(int row, int column, QStandardItemModel *model_test)
{
    ui->tableView_test->setModel(model_test);
   .
   .
   .
}

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The call from the Dialog Window:

emit valueChanged(row_pattern, column_pattern, model_pattern_creator);

emit valueChanged(row_pattern, column_pattern, model_pattern_creator);

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The Dialog Header :

public:
   QStandardItemModel *model_pattern_creator;
signals:
   void valueChanged(int row_pattern,int column_pattern, QStandardItemModel *model_pattern_creator );

public:
   QStandardItemModel *model_pattern_creator;
signals:
   void valueChanged(int row_pattern,int column_pattern, QStandardItemModel *model_pattern_creator );

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Thanks for help!