📄 王大刚--c语言编程宝典--g.htm
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far getfillpattern(char far *upattern); <BR>程序例: <BR>
<P>#include <graphics.h> <BR>#include <stdlib.h> <BR>#include
<stdio.h> <BR>#include <conio.h> <BR>
<P>int main(void) <BR>{ <BR> /* request auto detection */
<BR> int gdriver = DETECT, gmode, errorcode; <BR>
int maxx, maxy; <BR> char pattern[8] = {0x00, 0x70, 0x20,
0x27, 0x25, 0x27, 0x04, 0x04}; <BR>
<P> /* initialize graphics and local variables */
<BR> initgraph(&gdriver, &gmode, ""); <BR>
<P> /* read result of initialization */ <BR>
errorcode = graphresult(); <BR> if (errorcode != grOk)
/* an error occurred */ <BR> {
<BR> printf("Graphics error: %s\n",
grapherrormsg(errorcode)); <BR>
printf("Press any key to halt:"); <BR>
getch(); <BR> exit(1); /* terminate with an
error code */ <BR> } <BR>
<P> maxx = getmaxx(); <BR> maxy = getmaxy();
<BR> setcolor(getmaxcolor()); <BR>
<P> /* select a user defined fill pattern */ <BR>
setfillpattern(pattern, getmaxcolor()); <BR>
<P> /* fill the screen with the pattern */ <BR>
bar(0, 0, maxx, maxy); <BR>
<P> getch(); <BR>
<P> /* get the current user defined fill pattern */
<BR> getfillpattern(pattern); <BR>
<P> /* alter the pattern we grabbed */ <BR>
pattern[4] -= 1; <BR> pattern[5] -= 3; <BR>
pattern[6] += 3; <BR> pattern[7] -= 4; <BR>
<P> /* select our new pattern */ <BR>
setfillpattern(pattern, getmaxcolor()); <BR>
<P> /* fill the screen with the new pattern */
<BR> bar(0, 0, maxx, maxy); <BR>
<P> /* clean up */ <BR> getch(); <BR>
closegraph(); <BR> return 0; <BR>} <BR> <BR> <BR>
<P>函数名: getfillsettings <BR>功 能: 取得有关当前填充模式和填充颜色的信息 <BR>用 法:
void far getfillsettings(struct fillsettingstype far *fillinfo); <BR>程序例:
<BR>
<P>#include <graphics.h> <BR>#include <stdlib.h> <BR>#include
<stdio.h> <BR>#include <conio.h> <BR>
<P>/ the names of the fill styles supported */ <BR>char *fname[] = {
"EMPTY_FILL",
<BR>
"SOLID_FILL",
<BR>
"LINE_FILL",
<BR>
"LTSLASH_FILL",
<BR>
"SLASH_FILL",
<BR>
"BKSLASH_FILL",
<BR>
"LTBKSLASH_FILL",
<BR>
"HATCH_FILL",
<BR>
"XHATCH_FILL",
<BR>
"INTERLEAVE_FILL",
<BR>
"WIDE_DOT_FILL",
<BR>
"CLOSE_DOT_FILL",
<BR>
"USER_FILL" <BR> }; <BR>
<P>int main(void) <BR>{ <BR> /* request auto detection */
<BR> int gdriver = DETECT, gmode, errorcode; <BR>
struct fillsettingstype fillinfo; <BR> int midx, midy;
<BR> char patstr[40], colstr[40]; <BR>
<P> /* initialize graphics and local variables */
<BR> initgraph(&gdriver, &gmode, ""); <BR>
<P> /* read result of initialization */ <BR>
errorcode = graphresult(); <BR> if (errorcode != grOk)
/* an error occurred */ <BR> {
<BR> printf("Graphics error: %s\n",
grapherrormsg(errorcode)); <BR>
printf("Press any key to halt:"); <BR>
getch(); <BR> exit(1); /* terminate with an
error code */ <BR> } <BR>
<P> midx = getmaxx() / 2; <BR> midy = getmaxy() /
2; <BR>
<P> /* get information about current fill pattern and color */
<BR> getfillsettings(&fillinfo); <BR>
<P> /* convert fill information into strings */
<BR> sprintf(patstr, "%s is the fill style.",
fname[fillinfo.pattern]); <BR> sprintf(colstr, "%d is the fill
color.", fillinfo.color); <BR>
<P> /* display the information */ <BR>
settextjustify(CENTER_TEXT, CENTER_TEXT); <BR> outtextxy(midx,
midy, patstr); <BR> outtextxy(midx, midy+2*textheight("W"),
colstr); <BR>
<P> /* clean up */ <BR> getch(); <BR>
closegraph(); <BR> return 0; <BR>} <BR> <BR>
<BR> <BR>
<P>函数名: getftime <BR>功 能: 取文件日期和时间 <BR>用 法: int getftime(int
handle, struct ftime *ftimep); <BR>程序例: <BR>
<P>#include <stdio.h> <BR>#include <io.h> <BR>
<P>int main(void) <BR>{ <BR> FILE *stream; <BR>
struct ftime ft; <BR>
<P> if ((stream = fopen("TEST.$$$",
<BR> "wt")) == NULL)
<BR> { <BR> fprintf(stderr,
<BR>
"Cannot open output file.\n"); <BR> return
1; <BR> } <BR> getftime(fileno(stream), &ft);
<BR> printf("File time: %u:%u:%u\n",
<BR> ft.ft_hour,
ft.ft_min, <BR>
ft.ft_tsec * 2); <BR> printf("File date: %u/%u/%u\n",
<BR> ft.ft_month, ft.ft_day, <BR>
ft.ft_year+1980); <BR> fclose(stream); <BR> return
0; <BR>} <BR> <BR> <BR> <BR>
<P>函数名: getgraphmode <BR>功 能: 返回当前图形模式 <BR>用 法: int far
getgraphmode(void); <BR>程序例: <BR>
<P>#include <graphics.h> <BR>#include <stdlib.h> <BR>#include
<stdio.h> <BR>#include <conio.h> <BR>
<P>int main(void) <BR>{ <BR>/* request auto detection */ <BR>
int gdriver = DETECT, gmode, errorcode; <BR> int midx, midy,
mode; <BR> char numname[80], modename[80]; <BR>
<P>/* initialize graphics and local variables */ <BR>
initgraph(&gdriver, &gmode, ""); <BR>
<P>/* read result of initialization */ <BR> errorcode =
graphresult(); <BR>/* an error occurred */ <BR> if (errorcode
!= grOk) <BR> { <BR>
printf("Graphics error: %s\n",
<BR>
grapherrormsg(errorcode)); <BR>
printf("Press any key to halt:"); <BR>
getch(); <BR>/* terminate with an error code */
<BR> exit(1); <BR> } <BR>
<P> midx = getmaxx() / 2; <BR> midy = getmaxy() /
2; <BR>
<P>/* get mode number and name strings */ <BR> mode =
getgraphmode(); <BR> sprintf(numname,
<BR> "%d is
the current mode number.",
<BR> mode);
<BR> sprintf(modename,
<BR> "%s is
the current graphics mode",
<BR>
getmodename(mode)); <BR>
<P>/* display the information */ <BR>
settextjustify(CENTER_TEXT, CENTER_TEXT); <BR> outtextxy(midx,
midy, numname); <BR> outtextxy(midx, midy+2*textheight("W"),
<BR>
modename); <BR>
<P>/* clean up */ <BR> getch(); <BR> closegraph();
<BR> return 0; <BR>} <BR> <BR> <BR>
<P>函数名: getftime <BR>功 能: 取文件日期和时间 <BR>用 法: int getftime(int
handle, struct ftime *ftimep); <BR>程序例: <BR>
<P>#include <stdio.h> <BR>#include <io.h> <BR>
<P>int main(void) <BR>{ <BR> FILE *stream; <BR>
struct ftime ft; <BR>
<P> if ((stream = fopen("TEST.$$$",
<BR> "wt")) == NULL)
<BR> { <BR> fprintf(stderr,
<BR>
"Cannot open output file.\n"); <BR> return
1; <BR> } <BR> getftime(fileno(stream), &ft);
<BR> printf("File time: %u:%u:%u\n",
<BR> ft.ft_hour,
ft.ft_min, <BR>
ft.ft_tsec * 2); <BR> printf("File date: %u/%u/%u\n",
<BR> ft.ft_month, ft.ft_day, <BR>
ft.ft_year+1980); <BR> fclose(stream); <BR> return
0; <BR>} <BR> <BR> <BR> <BR>
<P>函数名: getgraphmode <BR>功 能: 返回当前图形模式 <BR>用 法: int far
getgraphmode(void); <BR>程序例: <BR>
<P>#include <graphics.h> <BR>#include <stdlib.h> <BR>#include
<stdio.h> <BR>#include <conio.h> <BR>
<P>int main(void) <BR>{ <BR>/* request auto detection */ <BR>
int gdriver = DETECT, gmode, errorcode; <BR> int midx, midy,
mode; <BR> char numname[80], modename[80]; <BR>
<P>/* initialize graphics and local variables */ <BR>
initgraph(&gdriver, &gmode, ""); <BR>
<P>/* read result of initialization */ <BR> errorcode =
graphresult(); <BR>/* an error occurred */ <BR> if (errorcode
!= grOk) <BR> { <BR>
printf("Graphics error: %s\n",
<BR>
grapherrormsg(errorcode)); <BR>
printf("Press any key to halt:"); <BR>
getch(); <BR>/* terminate with an error code */
<BR> exit(1); <BR> } <BR>
<P> midx = getmaxx() / 2; <BR> midy = getmaxy() /
2; <BR>
<P>/* get mode number and name strings */ <BR> mode =
getgraphmode(); <BR> sprintf(numname,
<BR> "%d is
the current mode number.",
<BR> mode);
<BR> sprintf(modename,
<BR> "%s is
the current graphics mode",
<BR>
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