# Welcome {#welcome}
Welcome to the Turbo Vision Help System!
This help system demonstrates markdown-based help files with topic navigation and cross-references.
## Features
- Markdown formatting
- Topic-based organization
- Cross-references between topics
- Keyboard navigation (arrows, PgUp/PgDn, Home/End)
- ESC to close
For more information, see [File Menu](#file-menu) or [Edit Menu](#edit-menu).
# File Menu {#file-menu}
The File menu provides file operations:
- **Open**: Open an existing file
- Keyboard: Ctrl+O or F3
- **Save**: Save the current file
- Keyboard: F2
- **Save As**: Save with a new filename
- Keyboard: Shift+F2
- **Exit**: Exit the application
- Keyboard: Alt+X
See also [Edit Menu](#edit-menu) and [Search](#search).
# Edit Menu {#edit-menu}
The Edit menu provides editing operations:
- **Cut**: Cut selected text to clipboard
- Keyboard: Ctrl+X
- **Copy**: Copy selected text to clipboard
- Keyboard: Ctrl+C
- **Paste**: Paste from clipboard
- Keyboard: Ctrl+V
- **Undo**: Undo last operation
- Keyboard: Ctrl+Z
- **Redo**: Redo last undone operation
- Keyboard: Ctrl+Y
The clipboard integrates with your operating system, so you can copy/paste between applications.
See also [File Menu](#file-menu) and [Search](#search).
# Search {#search}
The search function allows you to find text in your document:
- **Find**: Search for text
- Keyboard: Ctrl+F
- Options: Case-sensitive, Whole word
- **Find Next**: Find next occurrence
- Keyboard: F3
- **Replace**: Replace text
- Keyboard: Ctrl+H
- Options: Replace one, Replace all
See also [Edit Menu](#edit-menu).
# Navigation {#navigation}
## Keyboard Shortcuts
- **Arrow Keys**: Scroll up/down
- **PgUp/PgDn**: Page up/down
- **Home**: Go to top
- **End**: Go to bottom
- **ESC**: Close help window
## Topic Links
Help topics can link to each other using cross-references. When viewing a topic, you'll see "See also" links at the bottom pointing to related topics.
# About {#about}
Turbo Vision Help System v0.2.5
This is a modern implementation of Borland Turbo Vision's help system, using markdown files instead of proprietary binary TPH format.
Features:
- Human-readable help files
- Easy to author and maintain
- Version control friendly
- Cross-platform
See [Welcome](#welcome) to get started.