NAME
ggiDrawHLine, ggiPutHLine, ggiGetHLine - Draw, put, and get a
horizontal line from a visual
SYNOPSIS
#include <ggi/ggi.h>
int ggiDrawHLine(ggi_visual_t vis, int x, int y, int w);
int ggiPutHLine(ggi_visual_t vis, int x, int y, int w, const void *buf);
int ggiGetHLine(ggi_visual_t vis, int x, int y, int w, void *buf);
DESCRIPTION
Draw, put, or get a horizontal line from (x, y), extending w pixels in
the positive x direction (normally right). The height is one pixel.
The buf parameter in Get/Put functions points to a buffer from which
the pixels will be read, or to which they will be written (it must be
correctly allocated), respectively. See ggiPackColors(3) and
ggiUnmapPixel(3) functions for details on how to deal with pixels.
RETURN VALUE
All three functions return 0 to indicate success.
SEE ALSO
ggiDrawBox(3), ggiDrawLine(3), ggiDrawVLine(3), ggiMapColor(3),
ggi_pixelformat(3)