When you build a window, you:
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Specify the appearance and behavior of the window by setting its properties
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Add controls to the window
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Build scripts that determine how to respond to events in the window and its controls
To support these scripts, you can define new events for the window and its controls, and declare functions, structures, and variables for the window.
Two ways
There are two ways to build a window. You can:
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Build a new window from scratch
You use this technique to create windows that are not based on existing windows.
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Build a window that inherits its style, events, functions, structures, variables, and scripts from an existing window
You use inheritance to create windows that are derived from existing windows, thereby saving you time and coding.
For more information
For information on building windows from scratch, see Building a new window.
For information on using inheritance to build a window, see Using inheritance to build a window.