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# XF and Tcl/Tk

XF tries to support the development of Tcl/Tk programs as well as possible. This does not mean that the user does not have to know anything about Tk . To access parts of the interface, the developer must know some Tk commands.

The interface allows it to ask the user for information, but the code that requires this information must retrieve it from the interface. So here is a list of the most important commands to retrieve and set information from/to the interface.

- Text widgets
- Entry widgets
- Scale widgets
- Checkbutton widgets
- Radiobutton widgets
- Send