This is a fun little project that I created around 2011, while I was learning windows native GUI and C++. Even though it is just a prove of concept learning material that was never supposed to reach 1 ...
if qty1 == 0 and qty2 == 0 and qty3 ==0 and qty4 == 0: messagebox.showwarning("No order", "Please!,Place order first... ") ...
A user interface is the method by which the user and the computer exchange information and instructions. There are three main types - command-line, menu driven and graphical user interface (GUI).
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