Introduction - If you have any usage issues, please Google them yourself
First, the completion of a similar windwos system, " calculator" software. (1) interface with a similar, containing menus and menu shortcut key (menu function addition to the " help" outside the rest can be left vacant) set up your own portrait programs. (2) shall support the keys. (3) Select " Help" inside the " About" sub-menu, pop-up a copyright prompt window. (4) (selected for) when the mouse to click the Close button when the calculator pop up a message box that prompts, " do you really want to quit," according to OK exit, press Cancel stayed in the calculators.