图形和声音的C程序.doc

图形和声音的C程序1整个屏幕分2部分，左侧为菜单显示区，右侧为绘图区。在图形显示区设计一个光标，光标形状为“+”。设计光标的移动方式为键盘操作方式。上下左右分别对应键盘上的相应键，HOME、END、PAGEUP、PAGEDOWN分别代表左上、右上、左下、右下移动。F1、F2分别代表小步长和大步长。a，b分别代表起点和终点。O代表画圆，h画BOX，C清屏，W保存图形，R回调上次保存的图形。#include #include #include #include #include #include #include #include #define COLOR WHITE#define F1 59#define F2 60#define UP 72#define DOWN 80#define LEFT 75#define RIGHT 77#define HOME 71#define END 79#define PAGEUP 73#define PAGEDOWN 81void menu(void);void save(void);void load(void);void xhairs(int a,int b);union kchar c2;/*分割键盘码为扫描码还是ASCII码*/int i;key;struct dot/*定义一个点结构*/int x;int y;dis;void main()int inc=1,k,j,m,r;int driver,mode;struct dot firstdot,secdot;dis.x=200;dis.y=200;/*初始化dis点为光标所在点 */driver=DETECT;mode=VGAHI;initgraph(&driver,&mode,c:bcbgi);setbkcolor(BLUE);/*设置屏幕的显示底色为兰色*/cleardevice();/*清整个屏幕*/setcolor(YELLOW);/*设置图形显示颜色，字符显示颜色*/xhairs(dis.x,dis.y);/*在某点显示光标*/while(key.c0!=q)/*等待键盘输入，不是退出显示菜单*/menu();key.i=bioskey(0);xhairs(dis.x,dis.y);if(!key.c0)/*如果键盘低8位为0，则为功能键*/switch(key.c1)case LEFT:dis.x-=inc;break;case RIGHT:dis.x+=inc;break;case UP:dis.y-=inc;break;case DOWN:dis.y+=inc;break;case HOME:dis.x-=inc;dis.y-=inc;break;case PAGEUP:dis.x+=inc;dis.y-=inc;break;case END:dis.x-=inc;dis.y+=inc;break;case PAGEDOWN:dis.x+=inc;dis.y+=inc;break;case F1:inc=1;break;case F2:inc=5;break;elseswitch(tolower(key.c0)/*如果低8位字节显示ASCII*/case a:putpixel(dis.x,dis.y,COLOR);firstdot.x=dis.x;firstdot.y=dis.y;break;case b:putpixel(dis.x,dis.y,COLOR);secdot.x=dis.x;secdot.y=dis.y;break;case o:r=sqrt(fabs(secdot.x-firstdot.x)*(secdot.x-firstdot.x)+(secdot.y-firstdot.y)*(secdot.y-firstdot.y);circle(firstdot.x,firstdot.y,r);break;case h:rectangle(firstdot.x,firstdot.y,secdot.x,secdot.y);break;case c:cleardevice();break;case w:save();break;case r:load();break;xhairs(dis.x,dis.y);closegraph();/*关闭图形方式*/void xhairs(int a,int b) /*显示+光标*/int i;for(i=a-5;i=a+5;i+)putpixel(i,b,15getpixel(i,b);for(i=b-5;i=b+5;i+)putpixel(a,i,15getpixel(a,i);void menu(void)/*显示菜单*/#define STARTX 10#define STARTY 22#define DISTANCE 30int i;char *menu_name=a:start point.,b:end point.,o:draw circle.,h:draw box.,c:clear screen.,F1:step=1.,F2:step=5,HOME PAGEUP,END PAGEDOWN.,w:save graph.,r:load graph.,q:quit;setcolor(WHITE);rectangle(5,5,150,470);setcolor(LIGHTBLUE);settextstyle(TRIPLEX_FONT,HORIZ_DIR,2);outtextxy(36,STARTY,menu);setcolor(YELLOW);settextstyle(DEFAULT_FONT,HORIZ_DIR,1);for(i=0;i=14;i+)outtextxy(STARTX,STARTY+(i+1)*DISTANCE,menu_namei);void save(void)/*图形保存*/int i,j;FILE *fp;if(fp=fopen(graph.dat,w+)=NULL)printf(cannot open this file!);exit(0);for(i=5;i=470;i+)for(j=155;j=635;j+)fputc(getpixel(j,i),fp);fclose(fp);outtextxy(260,471,save over!);void load(void)/*图形读取*/int i,j;FILE *fp;if(fp=fopen(graph.dat,r+)=NULL)printf(cannot open this file!);exit(0);outtextxy(280,471,loading.);for (i=5;i=471;i+)for(j=155;j=635;j+)putpixel(j,i,fgetc(fp);fclose(fp);outtextxy(368,471,over!);2利用蜂鸣器使程序发声，通过控制蜂鸣器的发音频率产生音符，播放好人一生平安！#include #include #include #include #include #include #define N1 64/*定义音长*/#define N2 32/*半音符音长*/#define N4 16/*4分音符音长*/#define N8 8/*16分音符音长*/#define N16 4/*结束*/#define END 0enum NOTESC10=131,D10=147,E10=165,F10=175,G10=196,A10=220,B10=247,C0=262,D0=296,E0=330,F0=349,G0=392,A0=440,B0=494,C1=523,D1=587,E1=659,F1=698,G1=784,A1=880,B1=988,C2=1047,D2=1175,E2=1319,F2=1397,G2=1568,A2=1760,B2=1976;/*定义音符与频率的关系，C10就是C频率为131Hz*/enum NOTES song=D0,N4,E0,N8,D0,N8,C0,N4,A10,N4,G10,N8,E10,N8,G10,N8,A10,N8,C0,N2,A10,N4,A10,N8,C0,N8,G10,N8,A0,N8,E0,N8,G0,N8,D0,N2,E0,N4,D0,N8,E0,N8,G0,N4,E0,N4,G10,N8,E10,N8,G10,N8,A10,N8,C0,N2,A10,N4,A10,N8,C0,N8,A10,N8,A10,N8,D10,N8,E10,N8,G10,N2,D0,N4,G0,N4,A0,N8,G0,N8,F0,N2,G0,N2,A0,N4,G0,N8,E0,N8,D0,N8,E0,N8,C0,N8,A10,N8,D0,N2,E0,N4,G0,N8,E0,N8,G0,N4,E0,N4,G10,N8,E10,N8,G10,N8,A10,N8,C0,N4,A10,N4,A10,N8,C0,N8,D0,N8,A10,N8,C0,N8,E0,N8,D0,N1,END,END;/*乐谱*/void main()int note=0,fre,dur,control;clock_t goal;while(songnote!=0)fre=songnote;/*取乐谱数组中的频率*/dur=songnote+1;/*取乐谱数组的音长*/if(kbhit()break;/*如果有按键退出音乐播放*/if(fre)outportb(0x43,0xb6);/*初始化扬声器端口*/fre=(unsigned)(1193180L/fre);outportb(0x42,(char)fre);/*往扬声器端口送声音频率的值*/outportb(0x42,(char)(fre8);control=inportb(0x61);outportb(0x61,control|0x3);/*开始发音*/goal=(clock_t)dur+clock();/*设定延迟时间*/while(goalclock(