- Copyright
- List of Examples
- List of Tables
- Preface
- Tcl Basics
- Tcl Fundamentals
- Getting Started
- The Guestbook CGI Application
- String Processing in Tcl
- Tcl Lists
- Control Structure Commands
- Procedures and Scope
- Tcl Arrays
- Working with Files and Programs
- Running Programs with exec
- The file Command
- Cross-Platform File Naming
- Manipulating Files and Directories
- File Attributes
- Input/Output Command Summary
- Opening Files for I/O
- Reading and Writing
- The Current Directory — cd and pwd
- Matching File Names with glob
- The exit and pid Commands
- Environment Variables
- The registry Command
- Advanced Tcl
- Tk Basics
- Tk Widgets
- Tk Details
- C Programming
- Changes
- Tcl 7.4/Tk 4.0
- wish
- Obsolete Features
- The cget Operation
- Input Focus Highlight
- Bindings
- Scrollbar Interface
- pack info
- Focus
- The send Command
- Internal Button Padding
- Radiobutton Value
- Entry Widget
- Menus
- Listboxes
- No geometry Attribute
- Text Widget
- Color Attributes
- Color Allocation and tk colormodel
- Canvas scrollincrement
- The Selection
- The bell Command
- Tcl 7.5/Tk 4.1
- Tcl 7.6/Tk 4.2
- Tcl/Tk 8.0
- The Tcl Compiler
- Namespaces
- Safe-Tcl
- New lsort
- tcl_precision Variable
- Year 2000 Convention
- Http Package
- Serial Line I/O
- Platform-Independent Fonts
- The tk scaling Command
- Application Embedding
- Native Menus and Menubars
- CDE Border Width
- Native Buttons and Scrollbars
- Images in Text Widgets
- No Errors from destroy
- grid rowconfigure
- The Patch Releases
- Tcl/Tk 8.1
- Tcl/Tk 8.2
- Tcl/Tk 8.3
- About The CD-ROM
- Tcl 7.4/Tk 4.0
- Index
Safe-Tcl
Hidden commands were added to the Safe-Tcl security model. Instead of removing unsafe commands from an interpreter, they are hidden. The master can invoke hidden commands inside a slave. This is necessary so that the command sees the correct context. This adds new operations to the interp command: invokehidden, hide, expose, and hidden. Hidden commands are described on page 281.
Initialization of a safe interpreter with a safe base that supports auto loading and a standard exit alias has been abstracted into a Tcl interface. The safe::interpCreate and safe::interpInit procedures create or initialize a slave with the safe base. The safe::interpDelete procedure cleans up. The safe base is described on page 284.
To support the Trusted security policy, the interp marktrusted command was added. This promotes an unsafe interpreter back into a trusted one. Of course, only the master can do this.
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