Ok,this has no error trapping in it.
right click on your project and add new ui. add a windows form and call it inputForm
in your inputForm add two buttons change text on button1 to cancel and button2 to submit
add 4 textboxes and 4 labels. arrange them so label1 corresponds to textbox1 etc. this is where they will input their rate, volume etc...
on your form1 #include "inputForm.h"
on your inputForm make the textboxes all public like so (just change the private to public)