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BOX
. Summary
box(int <x>, int <y>, int <x2>, int <y2>, int <style>, int <hollow>,
int <color>);
. Description
The box function is used to create a box on the screen. The box will
have an upper left hand corner of <x>,<y> and a lower right hand
corner of <x2>,<y2>. The box must fit within the confines of the
screen. <color> is the color to use in drawing the box. If <hollow>
is a non-zero (TRUE) value, the inside of the box is not cleared.
<style> selects what kind of box to draw, as follows:
0 Spaces
1 Single lines
2 Double lines
3 Single vertical lines, double horizontal lines
4 Double vertical lines, single horizontal lines
If <style> is any other value, that character is used to construct
the sides of the box.
Possible colors are numbered as follows:
Black 00
Blue 01
Green 02
Cyan 03
Red 04
Magenta 05
Brown 06
Light Grey 07
Dark Grey 08
Light Blue 09
Light Green 10
Light Cyan 11
Light Red 12
Light Magenta 13
Yellow 14
White 15
To obtain a color attribute value for a color combination, the for-
mula is
color attribute value =
foreground color value + (16 * background color value)
Therefore, a Yellow character on a Blue background would have a
color attribute value of 30 (14 + (16 * 1)).
. Return Value
None.
. Example
box(10, 10, 70, 20, 1, 0, 112); // draw box in inverse color
See Also:
scroll
vsavearea
vrstrarea
color chart
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Written by Dave Pearson