H_BARBOX() Display a box containing a bar area
H_BARCLEAR() Clear the bar area on the screen
H_BARINIT() Initialise a bar screen
H_BARUPDATE() Update a bar on screen
H_BLANK2BOX() Output a blank screen with left and right headers
H_BLANKBOX() Output a blank box with a title
H_BLATBOX() Draw a double lined box with a shadow around a text string
H_BOLDKEYS() Output available keys on top two lines of screen
H_BOTTOMLINE() Output a string centred on the bottom line
H_COLORSET() Change/return the colour setting
H_COMIXODOMETER()Display an odometer on the screen during reindexes
H_ELEVBAR() Output an elevator bar on screen
H_INDEXODOMETER()Display an odometer on the screen during reindexes
H_MENU() General purpose menu system
H_MESSAGE() Output a message to the screen
H_MODEANDUSER() Output the mode and user to the screen
H_ODOMETER() Display an odometer on the screen
H_PRINTSCREEN() Output a screen to the printer
H_RSTRGN() Restore region of the screen saved with H_SAVRGN()
H_SAVRGN() Save a screen region for later display
H_SHADOWBOX() Draw a box with a shadow
H_SHOWRESOURCE() Show system resources
H_VIDEOMODE() Set the video mode
H_WARNING() Output a warning message in white on red
H_WORKING() Output "Working" in white on red on the bottom line