Description:
MODIFY_RANGE is used to dynamically alter the characteristics of a range
passed as the first parameter. The range is defined by the second and third
parameters. These second and third parameters can be markers or the following keywords:
LINE_BEGIN, BUFFER_BEGIN, LINE_END, or BUFFER_END.
An optional fourth and last parameter can be used to change the video
attributes of the range given as the first parameter. Valid fourth parameter arguments
are: BOLD, NONE, CYAN, RED, BLINK, BLACK, GREEN, WHITE, REVERSE, BLUE,
MAGENTA, YELLOW, or UNDERLINE.
Syntax:
MODIFY_RANGE (range, {marker | keyword}, {marker | keyword} [, attribute ])
Examples:
The following changes the video attribute of the range fred$range to blink.
MODIFY_RANGE (fred$range, , , blink);
The following changes the beginning marker of the range fred$range to
LINE_BEGIN and changes the video attributes to none.
MODIFY_RANGE (fred$range, LINE_BEGIN, m2, NONE);
Errors:
TPU$_BADKEY Invalid keyword.
TPU$_NOTSAMEBUF The first and second markers are in different buffers.
MODIFY_RANGE