Listed below are some of the known limitations of JavaHelp. This information is for reference only and may not apply to every JavaHelp project.
For the latest information about JavaHelp, visit the Sun Microsystems Web site at www.java.sun.com/products/javahelp.
Capitalization
All caps
Small caps
Custom colors (Some custom colors do not display accurately in the JavaHelp viewer.)
Fonts
Fonts/Font sets1 (Fonts are automatically set to JavaHelp default fonts.)
Font size
Forms (Only very simple forms display properly in the JavaHelp viewer.)
Framesets
HTML files generated by Word 2000
HTML Help Controls
WinHelp topic
Shortcut
Table of contents
Index
Splash screen
Close window
HHCTRL version
Images
Images (Do not display consistently in compressed JavaHelp.)
Background images1
Image maps
Links
to email addresses
to FTP sites
to external files
Lists (Only simple bulleted or numbered lists display properly in the JavaHelp viewer.)
Multimedia
Sound files (such as .WAV or .MIDI)
Video files (such as .AVI)
Paragraph alignment tags (i.e., <P align="center">, <P align="left">, <P align="right">)
Plain text (non-HTML) files1
Popup links (The popup window does not have a bottom border if the entire popup is contained within the content frame. This limitation does not apply to text-only popups.)
Special effects
ActiveX controls
Dynamic HTML
JavaScript
Splash screens
Visual Basic scripts
Style sheets2
Table attributes
Values set in the initial tag (TABLE) of a table override cell width specifications.
The table width attribute (TABLE WIDTH) functions when specified in absolute pixels, but not in percentages.
When used within the TABLE tag, the background color attribute (BGCOLOR) does not function1.
When used within the TABLE tag, the break tag (BR) causes the table cell to be expanded by # of BR tags used1.
Table alignment cannot be set precisely.
Text animations and effects
WebSearch
1This feature is not supported in JavaHelp 1.0, but is supported in JavaHelp 1.1.
2Partial cascading style sheet support is provided with JavaHelp 1.1 (external style sheets work correctly). The default style sheet used with JDK 1.2.2 is included in the javahelp\doc\css folder when you install JavaHelp. You can use level 1 cascading style sheets with the JDK 1.2.2 or higher, or Swing 1.1.1 with JDK 1.1.