Problems launching a window when I press a button

[nish]

change this

onnect( boton_haceralgo, SIGNAL(clicked()), this, SLOT ( doSomething(argc, argv)));

onnect( boton_haceralgo, SIGNAL(clicked()), this, SLOT ( doSomething(argc, argv)));

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to

onnect( boton_haceralgo, SIGNAL(clicked()), this, SLOT ( doSomething()));

onnect( boton_haceralgo, SIGNAL(clicked()), this, SLOT ( doSomething()));

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and

nt miApVentana::doSomething()
{
//QApplication app(argc, argv);
ventanina *dialog = new ventanina;
dialog->show();
//return app.exec();
}

nt miApVentana::doSomething()
{
//QApplication app(argc, argv);
ventanina *dialog = new ventanina;
dialog->show();
//return app.exec();
}

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