Almost everything you see on a window is a control of some kind: buttons(按钮), listboxes(列表框), edit fields(文本编辑框), static text(静态文本) are all controls. In fact Notepad is just on
Note: AutoIt on
Information on controls is given by AutoIt Window Info Tool, these are:
The Control ID is the internal numeric identifier 数值型标识符（实际上就是整数值) that windows gives to each control. It is generally the best method of indentifying controls.
Each Microsoft standard control has a "classname" such as "button(按鈕)" or "edit(编辑框)".
In AutoIt this is combined with the "instance" of that control to give the "ClassNameNN" method. If you have a simple dialog with a few buttons on it they will generally be referred to as "Button1", "Button2", "Button3", etc.
This method is useful when the Control ID is not applicable (for static text or custom controls).
You will notice that AU3Info gives you the text it can see on a control, for example on a Next button you might see the text &Next - the & indicates that the next letter is underlined and is common when working with menus and controls.
Using the ControlGetHandle function you can determine the Handle or HWND of a control.
A handle is the unique indentifier that Windows gives controls.