HP Vectra Technical Reference Manual page 42

3.3 Video Driver (lNT 10H)
The video driver functions can be broken down into the following categories.
• Display Control-These functions control the display appearance, cursor and light pen
position, active text memory page, and scrolling through text memory.
• Character Handling Functions-These functions manipulate characters on the screen.
• String Functions-These functions allow placement of strings of text on the screen.
• Graphics Functions-These functions provide a minimal interface to the graphics capabilities
of the machine.
• Extended Video Functions-These functions support extra video capabilities of the
MultiMode Video Display Adapter hardware.
Table 3.3 summarizes the functions performed by the video driver. A detailed description of the
functions is given following the table.
Video 33