📄 graphic.part2.h
字号:
@函数名称: setusercharsize
函数原型: void far setusercharsize(int multx, int divx,int multy, int divy)
函数功能: 图形模式下设置任意比例大小的字体显示
函数返回:
参数说明: multx,divx-x方向比例，显示大小为multx/divx的倍数
multy,divy-y方向比例，显示大小为multy/divy的倍数
所属文件: <graphics.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
void xat(int x,int y);
char *hjust[]={"LEFT_TEXT","CENTER_TEXT","RIGHT_TEXT"};
char *vjust[]={"LEFT_TEXT","CENTER_TEXT","RIGHT_TEXT"};
int main()
{
int gdriver=DETECT,gmode,errorcode;
int midx,midy,hj,vj;
char msg[80];
initgraph(&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode != grOk)
{
printf("Graphics error: %s",grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1);
}
midx=getmaxx()/2;
midy=getmaxy()/2;
for (hj=LEFT_TEXT; hj<=RIGHT_TEXT; hj++)
for (vj=LEFT_TEXT; vj<=RIGHT_TEXT; vj++)
{
cleardevice();
settextjustify(hj,vj);
sprintf(msg,"%s %s",hjust[hj],vjust[vj]);
xat(midx,midy);
outtextxy(midx,midy,msg);
getch();
}
closegraph();
return 0;
}
@函数名称: textheight
函数原型: int far textheight(char far *textstring)
函数功能: 得到图形模式下的字符串高度
函数返回:
参数说明:
所属文件: <graphics.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
int main()
{
int gdriver=DETECT,gmode,errorcode;
int y=0;
int i;
char msg[80];
initgraph(&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode != grOk)
{
printf("Graphics error: %s",grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1);
}
for (i=1; i<11; i++)
{
settextstyle(TRIPLEX_FONT,HORIZ_DIR,i);
sprintf(msg,"Size: %d",i);
outtextxy(1,y,msg);
y+= textheight(msg);
}
getch();
closegraph();
return 0;
}
@函数名称: textwidth
函数原型: int far textwidth(char far *textstring)
函数功能: 得到图形模式下的字符串宽度
函数返回:
参数说明:
所属文件: <graphics.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
int main()
{
int gdriver=DETECT,gmode,errorcode;
int y=0;
int i;
char msg[80];
initgraph(&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode!=grOk)
{
printf("Graphics error: %s",grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1);
}
for (i=1;i<11;i++)
{
settextstyle(TRIPLEX_FONT,HORIZ_DIR,i);
sprintf(msg,"Size: %d",i);
outtextxy(1,y,msg);
y+=textwidth(msg);
}
getch();
closegraph();
return 0;
}
@函数名称: graphresult
函数原型: int far graphresult(void)
函数功能: 返回最近一次图形操作的结果状态值
函数返回: 图形操作结果，含义如下:
grOk=0 grNoInitGraph=-1 grNotDetected=-2
grFileNotFound=-3 grInvalidDriver=-4 grNoLoadMem=-5
grNoScanMem=-6 grNoFloodMem=-7 grFontNotFound=-8
grNoFontMem=-9 grInvalidMode=-10 grError=-11
grIOerror=-12 grInvalidFont=-13 grInvalidFontNum=-14
grInvalidVersion=-18
参数说明:
所属文件: <graphics.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
int main()
{
int gdriver=DETECT,gmode,errorcode;
initgraph(&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode!=grOk)
{
printf("Graphics error: %s",grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1);
}
line(0,0,getmaxx(),getmaxy());
getch();
closegraph();
return 0;
}
@函数名称: initgraph
函数原型: void far initgraph(int far *graphdriver, int far *graphmode, char far *pathtodriver)
函数功能: 初始化图形系统
函数返回: 以下代码将图形系统初始化为VGA 640X480 16色工作方式：
int driver=VGA,mode=VGAHI;
initgraph(&driver,&mode,"c:\tc")
参数说明: graphdriver 图形驱动器代号，具体如下:
DETECT 0 CGA 1 MCGA 2 EGA 3
EGA64 4 EGAMONO 5 IBM8514 6
HERCMONO 7 ATT400 8 VGA 9
PC3270 10 graphmode 选定图形驱动器的工作模式，具体如下:
CGAC0=0 320x200 palette 0 1 page
CGAC1=1 320x200 palette 1 1 page
CGAC2=2 320x200 palette 2 1 page
CGAC3=3 320x200 palette 3 1 page
CGAHI=4 640x200 1 page
MCGAC0=0 320x200 palette 0 1 page
MCGAC1=1 320x200 palette 1 1 page
MCGAC2=2 320x200 palette 2 1 page
MCGAC3=3 320x200 palette 3 1 page
MCGAMED=4 640x200 1 page
MCGAHI=5 640x480 1 page
EGALO=0 640x200 16 color 4 pages
EGAHI=1 640x350 16 color 2 pages
EGA64LO=0 640x200 16 color 1 page
EGA64HI=1 640x350 4 color 1 page
EGAMONOHI=0 640x350 64K on card 1 page
256K on card 4 pages
HERCMONOHI=0 720x348 2 pages
ATT400C0=0 320x200 palette 0 1 page
ATT400C1=1 320x200 palette 1 1 page
ATT400C2=2 320x200 palette 2 1 page
ATT400C3=3 320x200 palette 3 1 page
ATT400MED=4 640x200 1 page
ATT400HI=5 640x400 1 page
VGALO=0 640x200 16 color 4 pages
VGAMED=1 640x350 16 color 2 pages
VGAHI=2 640x480 16 color 1 page
PC3270HI=0 720x350 1 page
IBM8514LO=0 640x480 256 colors
IBM8514HI=1 1024x768 256 colors
pathtodriver-图形驱动器文件路径，如不修改，图形驱动器文件在TC目录下
所属文件: <graphics.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
int main()
{
int gdriver=DETECT,gmode,errorcode;
initgraph(&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode!=grOk)
{
printf("Graphics error: %s",grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1);
}
line(0,0,getmaxx(),getmaxy());
getch();
closegraph();
return 0;
}
@函数名称: getviewsettings
函数原型: void far getviewsettings(struct viewporttype far *viewport)
函数功能: 得到当前视口信息
函数返回:
参数说明: viewport 视口信息，该结构如下：
struct viewporttype{
int left,top,right,bottom;
int clip;
};
所属文件: <graphics.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
char *clip[]={"OFF","ON"};
int main()
{
int gdriver=DETECT,gmode,errorcode;
struct viewporttype viewinfo;
int midx,midy,ht;
char topstr[80],botstr[80],clipstr[80];
initgraph(&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode!=grOk)
{
printf("Graphics error: %s",grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1);
}
midx=getmaxx()/2;
midy=getmaxy()/2;
getviewsettings(&viewinfo);
sprintf(topstr,"(%d,%d) is the upper left viewport corner.",
viewinfo.left,viewinfo.top);
sprintf(botstr,"(%d,%d) is the lower right viewport corner.",
viewinfo.right,viewinfo.bottom);
sprintf(clipstr,"Clipping is turned %s.",clip[viewinfo.clip]);
settextjustify(CENTER_TEXT,CENTER_TEXT);
ht=textheight("W");
outtextxy(midx,midy,topstr);
outtextxy(midx,midy+2*ht,botstr);
outtextxy(midx,midy+4*ht,clipstr);
getch();
closegraph();
return 0;
}
@函数名称: clearviewport
函数原型: void far clearviewport(void)
函数功能: 清除当前屏幕窗口显示，仅用于图形工作方式
函数返回:
参数说明:
所属文件: <graphics.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#define CLIP_ON 1
int main()
{
int gdriver=DETECT,gmode,errorcode;
int ht;
initgraph(&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode!=grOk)
{
printf("Graphics error: %s",grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1);
}
setcolor(getmaxcolor());
ht=textheight("W");
outtextxy(0,0,"* <-- (0,0) in default viewport");
setviewport(50,50,getmaxx()-50,getmaxy()-50,CLIP_ON);
outtextxy(0,0,"* <-- (0,0) in smaller viewport");
outtextxy(0,2*ht,"Press any key to clear viewport:");
getch();
clearviewport();
outtextxy(0,0,"Press any key to quit:");
getch();
closegraph();
return 0;
}
@函数名称: getx
函数原型: int far getx(void)
函数功能: 得到当前位置的x坐标
函数返回: 当前位置的x坐标
参数说明:
所属文件: <graphics.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
int main()
{
int gdriver=DETECT,gmode,errorcode;
char msg[80];
initgraph(&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode!=grOk)
{
printf("Graphics error: %s",grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1);
}
moveto(getmaxx()/2,getmaxy()/2);
sprintf(msg,"<-(%d,%d) is the here.",getx(),gety());
outtext(msg);
getch();
closegraph();
return 0;
}
@函数名称: gety
函数原型: int far gety(void)
函数功能: 得到当前位置的y坐标
函数返回: 当前位置的y坐标
参数说明:
所属文件: <graphics.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
int main()
{
int gdriver=DETECT,gmode,errorcode;
char msg[80];
initgraph(&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode!=grOk)
{
printf("Graphics error: %s",grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1);
}
moveto(getmaxx()/2,getmaxy()/2);
sprintf(msg,"<-(%d,%d) is the here.",getx(),gety());
outtext(msg);
getch();
closegraph();
return 0;
}
@函数名称: setviewport
函数原型: void far setviewport(int left, int top, int right, int bottom, int clip)
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