| Programming Guide | |
Sets the background color of a rectangle
int sm_bkrect(int start_line, int start_col, int num_of_lines, int num_of_col, int bkgr_colors);
start_line,start_col- Specify the upper-left corner of the area to set, where the values of
start_lineandstart_columncan range from 0 through the length and width of the screen less 1, respectively.num_of_lines- The length of the area to set.
num_of_col- The width of the area to set.
bkgr_colors- The attributes to set as the area's background color.
Character-mode
sm_bkrectchanges the background color of a rectangular area of the current screen. The background color must be one of the constants defined insmattrib.h. You can highlight the background color by OR'ing the background color attribute withB_HILIGHT.All fields or elements that start inside the area have their background attributes changed to the specified attribute. Display text inside the rectangular area has its background attribute set. Make sure that fields or elements that change are entirely inside the area; otherwise, a ragged edge results.
/* Draw some colored squares on the display*/
int colors[] =
{
B_RED,
B_BLUE,
B_WHITE,
B_CYAN
};
int mondrian(void)
{
int i;
for (i=0;i<sizeof(colors)/sizeof(int);i++)
{
sm_bkrect((i/2) * 10,(i & 1) * 40, 10, 40, colors[i]);
}
return(0);
}