INF: VRES Video Modes Have 30 Lines w/ Graphics Text Functions

ID Number: Q47021

5.00 5.10 6.00 6.00a 6.00ax 7.00

MS-DOS

Summary:

In Microsoft C versions 5.0, 5.1, 6.0, 6.0a, 6.0ax, and C/C++ version

7.0, when using the Output Text routines in the Microsoft run-time

library (version 5.1 "Microsoft C for the MS-DOS Operating System:

Run- Time Library Reference," pages 54-55), the two graphic modes,

_VRES2COLOR and _VRES16COLOR, have 30 text lines by default because of

their increased vertical resolution. All other graphics modes have 25

text lines when using these routines.

More Information:

The following graphics functions are the routines concerned with text

placement and output:

_displaycursor()

_gettextcolor()

_gettextposition()

_outtext()

_settextposition()

_settextcolor()

_settextwindow()

_wrapon()

The line numbers stated above are based on the default 8 x 8 font size

of the IBM ROM BIOS. Note that when using fonts, the number of text

lines in any video mode depends on the height of the font. For

information concerning changing from the default font size, see the

interrupt 10, function 11 entries in "IBM ROM BIOS," a Microsoft Press

book by Ray Duncan.

Additional reference words: 5.00 5.10 6.00 6.00a 6.00ax 7.00