Programming with Microsoft Visual Basics 2015, Chapter 7 Sub and Function Procedures You Do It 2!. Add a text box, label and a button named btnCalc to the form. The btnCalc_Click procedure should assign the text boxt value to an Integer variable and then pass a copy of the variable's value, along with the address of a different Integer varialbe, to an independent Sub procedure names CalcDouble. CalcDouble should multiply the first Integer variable's value by 2 and then store the result in the second Integer variable. The btnCalc_Click procedure should display the contents of the second Integer variable in the label control.