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Title Calculator c projects
Author NARAYANA MOORTHY && R>KARTHI KEYAN
Author Email bnmcs86 [at] gmail.com
Description if using mouse pointer
Category C » Data Structures
Hits 29788
Code Select and Copy the Code
#include"graphics.h" #include"dos.h" #include"stdio.h" #include"math.h" union REGS i,o; char text[35][25]={ "7","8","9","*","4","5","6","/","1","2","3","+","0","00",".","-","M","M+", "M-","+/-","MR","MC","x^2","sr","OFF","AC","CE","="}; int s=0,k=0,pass,op,prop,newnum=1,bt,memo=1,d=0,sq; long double num=0,accum,m; void normalbutton(int,int,int,int,char *); void main() { int gd=DETECT,gm,x1,x2,y1,y2,i,j,maxx,maxy,x,y,button; initgraph(&gd,&gm,""); if(initmouse()==0) { closegraph(); restorecrtmode(); printf(" Mouse driver not loded"); exit(1); } setcolor(2); gotoxy(20,10); printf("WELCOME TO ISTE "); gotoxy(20,14); printf("press any key to continue....... "); getch(); cleardevice(); showmouseptr(); movemouseptr(&x,&y); setcolor(15); rectangle(198,140,417,163); rectangle(199,141,418,164); rectangle(197,139,416,162); rectangle(185,130,430,450); rectangle(184,129,431,451); rectangle(182,127,433,454); rectangle(181,126,434,453); setfillstyle(SOLID_FILL,3); //bar(200,142,415,161); outtextxy(50,25,"A Calculator project in C presented by B.NARAYANA MOORTHY AND R.KARTHIK KEYAN"); outtextxy(200,100,"Press OFF button to exit...."); y1=140; y2=160; for(j=0;j<7;j++) { x1=200; x2=235; y1+=40; y2+=40; for(i=0;i<4;i++) { normalbutton(x1,x2,y1,y2,text[s]); s++; x1+=60; x2+=60; } } while(1) { getmousepos(&button,&x,&y); y1=140; y2=160; for(j=0;j<7;j++) { x1=200; x2=235; y1+=40; y2+=40; for(i=0;i<4;i++) { if((x<x2&&x>x1)&&(y<y2&&y>y1)) { if((button&1)==1) { gotoxy(28,10); bt=j*4+i; setcolor(11); outtextxy(x1+12,y1+7,text[j*4+i]); if(num>pow(10.0,18)) exit(); delay(10); delay(250); delay(10); switch (bt) { case 8 : addnum(1); break; case 9 : addnum(2); break; case 10 : addnum(3); break; case 4 : addnum(4); break; case 5 : addnum(5); break; case 6 : addnum(6); break; case 0 : addnum(7); break; case 1 : addnum(8); break; case 2 : addnum(9); break; case 12 : addnum(0); break; case 11 : operation(1); // plus break; case 15 : operation(2); // minus break; case 3 : operation(3); // multiplication break; case 7 : operation(4); // division break; case 13: doublezero(); break; case 14 : decimal(); break; case 16: m=m; printf("%25.5Lf",m); //memory call break; case 20: printf("%25.5Lf",m); break; case 19: plusminus(); break; case 17: m=m+num; //memory plus break; case 18: m=m-num; //memory minus break; case 21: clearm(); break; case 22 : square(); break; case 23: sqroot(); break; case 24: hidemouseptr(); setcolor(1); cleardevice(); setcolor(14); outtextxy(225,200,"THANK YOU"); delay(2000); exit(); break; case 25: allclear(); break; case 26: clear(); break; case 27: num=operation(5); // equalto break; } setcolor(1); outtextxy(x1+12,y1+7,text[j*4+i]); } } x1+=60; x2+=60; } } } } void normalbutton(int x1,int x2,int y1,int y2,char *text) { setcolor(15); rectangle(x1-2,y1-2,x2+1,y2+1); rectangle(x1-1,y1-1,x2+2,y2+2); setcolor(5); rectangle(x1,y1,x2+2,y2+2); rectangle(x1,y1,x2+1,y2+1); setfillstyle(SOLID_FILL,14); bar(x1,y1,x2,y2); setcolor(1); outtextxy(x1+12,y1+7,text); k++; } initmouse() { i.x.ax=0; int86 (0x33,&i,&o); return(o.x.ax); } hidemouseptr() { i.x.ax=2; int86(0x33,&i,&o); return 0; } showmouseptr() { i.x.ax=1; int86(0x33,&i,&o); return 0; } getmousepos(int *button,int *x,int *y) { i.x.ax=3; int86(0x33,&i,&o); *button=o.x.bx; *x=o.x.cx; *y=o.x.dx; return 0; } /* Move mouse ptr to x,y */ movemouseptr(int *x,int *y) { i.x.ax=4; int86(0x33,&i,&o); o.x.cx=*x; o.x.dx=*y; return 0; } addnum(int pass) { if(sq) newnum=1; if(newnum) { if(d) { num=pass/(pow(10.0,d)); d++; newnum=0; } else { num=pass; newnum=0; } } else { if(d) { if(num<0) num=num-pass/(pow(10.0,d)); else num=num+pass/(pow(10.0,d)); d++; } else { num=num*10+pass; } } printf("%25.5Lf",num); return ; } operation(int opr) { long double pnum; pnum=num; if(newnum && (prop != 5) && memo) { } else { newnum=1; d=0; sq=0; switch(prop) { case 1: accum=accum+pnum; break; case 2: accum=accum-pnum; break; case 3: accum=accum*pnum; break; case 4: accum=accum/pnum; break; default: accum=pnum; } } prop=opr; num=accum; printf("%25.5Lf",num); return num; } allclear() { sq=0; accum=0; num=0; d=0; newnum=1; printf("%25.5Lf",num); return; } plusminus() { if(num!=0) { num*=-1; printf("%25.5Lf",num); } return; } clearm() { m=0; //printf("%25.5Lf",m); return; } decimal() { if(!d) { d=1; if(newnum==1) { num=0; } printf("%25.5Lf",num); } return; } square() { sq=1; num*=num; printf("%25.5Lf",num); return; } sqroot() { sq=1; num=pow(num,0.5); printf("%25.5Lf",num); return; } doublezero() { if(d) { d++; d++; } else num*=100; printf("%25.5Lf",num); return; } clear() { num=0; printf("%25.5Lf",num); return; }

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