how to display window(Window A), when clicked on a button of another window(Window B)

[Santosh Reddy]

The first method should work if the object is created
Also it is always safe to have a parent to any QObject based object.

void window_a::on_pushButton_clicked()
{
    window_b * mywindow_b = new window_b(this);
    mywindow_b->show();
}

void window_a::on_pushButton_clicked()
{
    window_b * mywindow_b = new window_b(this);
    mywindow_b->show();
}

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