1. Building a Win32API Application
Raw access to the API

2. Use WIN32API in your main function:
RegisterClassEx() (you provide a pointer to a function (usually called WndProc) which handles windows messages such as WM_CREATE, WM_COMMAND etc
CreateWindowEx()
ShowWindow()
UpdateWindow()
Write another function to handle Windows's messages.
When the GetMsg() value is WM_CREATE, call CreateWindow().
The class specifies what kind of 'control' that window is e.g.; "edit" is a text box and "button" is a button.
You have to specify a unique ID for each control.
CreateWindow() returns a handle (pointer) to that control.
When the user clicks on a control you receive the WM_COMMAND message with the ID of that control.
Now handle that event. SetWindowText() and GetWindowText() allow you to set/get the text of any control.