Library Management using C ( C Projects )

     

1. //list of header files
2. #include <windows.h>
3. #include<stdio.h> //contains printf,scanf etc
4. #include<conio.h> //contains delay(),getch(),gotoxy(),etc.
5. #include <stdlib.h>
6. #include<string.h> //contains strcmp(),strcpy(),strlen(),etc
7. #include<ctype.h> //contains toupper(), tolower(),etc
8. #include<dos.h> //contains _dos_getdate
9. #include<time.h>
10. //#include<bios.h> //contains show_mouse();
11.  
12. #define RETURNTIME 15
13.  
14. //list of function prototype
15. char catagories[][15]={"Computer","Electronics","Electrical","Civil","Mechnnical","Architecture"};
16. void returnfunc(void);
17. void mainmenu(void);
18. void addbooks(void);
19. void deletebooks(void);
20. void editbooks(void);
21. void searchbooks(void);
22. void issuebooks(void);
23. void viewbooks(void);
24. void closeapplication(void);
25. int getdata();
26. int checkid(int);
27. int t(void);
28. //void show_mouse(void);
29. void Password();
30. void issuerecord();
31. void loaderanim();
32.  
33. COORD coord = {0, 0}; // sets coordinates to 0,0
34. //COORD max_buffer_size = GetLargestConsoleWindowSize(hOut);
35. COORD max_res,cursor_size;
36. void gotoxy (int x, int y)
37. {
38. coord.X = x; coord.Y = y; // X and Y coordinates
39. SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
40. }
41. void delay(unsigned int mseconds)
42. {
43. clock_t goal = mseconds + clock();
44. while (goal > clock());
45. }
46. //list of global files that can be acceed form anywhere in program
47. FILE *fp,*ft,*fs;
48.  
49. //list of global variable
50. int s;
51. char findbook;
52. char password[10]={"pokhara"};
53.  
54.  
55. struct meroDate
56. {
57. int mm,dd,yy;
58. };
59. struct books
60. {
61. int id;
62. char stname[20];
63. char name[20];
64. char Author[20];
65. int quantity;
66. float Price;
67. int count;
68. int rackno;
69. char *cat;
70. struct meroDate issued;
71. struct meroDate duedate;
72. };
73. struct books a;
74. int main()
75.  
76. {
77. Password();
78. getch();
79. return 0;
80.  
81. }
82. void mainmenu()
83. {
84. //loaderanim();
85. system("cls");
86. // textbackground(13);
87. int i;
88. gotoxy(20,3);
89. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2 MAIN MENU \xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
90. //show_mouse();
91. gotoxy(20,5);
92. printf("\xDB\xDB\xDB\xDB\xB2 1. Add Books ");
93. gotoxy(20,7);
94. printf("\xDB\xDB\xDB\xDB\xB2 2. Delete books");
95. gotoxy(20,9);
96. printf("\xDB\xDB\xDB\xDB\xB2 3. Search Books");
97. gotoxy(20,11);
98. printf("\xDB\xDB\xDB\xDB\xB2 4. Issue Books");
99. gotoxy(20,13);
100. printf("\xDB\xDB\xDB\xDB\xB2 5. View Book list");
101. gotoxy(20,15);
102. printf("\xDB\xDB\xDB\xDB\xB2 6. Edit Book's Record");
103. gotoxy(20,17);
104. printf("\xDB\xDB\xDB\xDB\xB2 7. Close Application");
105. gotoxy(20,19);
106. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
107. gotoxy(20,20);
108. t();
109. gotoxy(20,21);
110. printf("Enter your choice:");
111. switch(getch())
112. {
113. case '1':
114. addbooks();
115. break;
116. case '2':
117. deletebooks();
118. break;
119. case '3':
120. searchbooks();
121. break;
122. case '4':
123. issuebooks();
124. break;
125. case '5':
126. viewbooks();
127. break;
128. case '6':
129. editbooks();
130. break;
131. case '7':
132. {
133. system("cls");
134. gotoxy(16,3);
135. printf("Programmers....");
136. gotoxy(16,4);
137. printf("1. Bibek Subedi (066/BCT/506)");
138. gotoxy(16,5);
139. printf(" Mobile:9846311430 E-mail:subedi_bibek@yahoo.co.in");
140. gotoxy(16,7);
141. printf("2. Dinesh Subedi (066/BCT/512)");
142. gotoxy(16,8);
143. printf(" Mobile:9841569394 E-mail:smokindinesh@gmail.com");
144. gotoxy(16,10);
145. printf("3. Sijan Bhandari (066/BCT/537)");
146. gotoxy(16,11);
147. printf(" Mobile:9849516774 E-mail:sijan_nasa@yahoo.com");
148. gotoxy(16,13);
149. printf("With the Unexplainable Help of Mr.Ashok Basnet");
150. gotoxy(10,17);
151. printf("Exiting in 3 second...........>");
152. //flushall();
153. delay(3000);
154. exit(0);
155. }
156. default:
157. {
158. gotoxy(10,23);
159. printf("\aWrong Entry!!Please re-entered correct option");
160. if(getch())
161. mainmenu();
162. }
163.  
164. }
165. }
166. void addbooks(void) //funtion that add books
167. {
168. system("cls");
169. int i;
170. gotoxy(20,5);
171. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2SELECT CATEGOIES\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
172. gotoxy(20,7);
173. printf("\xDB\xDB\xDB\xDB\xB2 1. Computer");
174. gotoxy(20,9);
175. printf("\xDB\xDB\xDB\xDB\xB2 2. Electronics");
176. gotoxy(20,11);
177. printf("\xDB\xDB\xDB\xDB\xB2 3. Electrical");
178. gotoxy(20,13);
179. printf("\xDB\xDB\xDB\xDB\xB2 4. Civil");
180. gotoxy(20,15);
181. printf("\xDB\xDB\xDB\xDB\xB2 5. Mechanical");
182. gotoxy(20,17);
183. printf("\xDB\xDB\xDB\xDB\xB2 6. Architecture");
184. gotoxy(20,19);
185. printf("\xDB\xDB\xDB\xDB\xB2 7. Back to main menu");
186. gotoxy(20,21);
187. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
188. gotoxy(20,22);
189. printf("Enter your choice:");
190. scanf("%d",&s);
191. if(s==7)
192.  
193. mainmenu() ;
194. system("cls");
195. fp=fopen("Bibek.dat","ab+");
196. if(getdata()==1)
197. {
198. a.cat=catagories[s-1];
199. fseek(fp,0,SEEK_END);
200. fwrite(&a,sizeof(a),1,fp);
201. fclose(fp);
202. gotoxy(21,14);
203. printf("The record is sucessfully saved");
204. gotoxy(21,15);
205. printf("Save any more?(Y / N):");
206. if(getch()=='n')
207. mainmenu();
208. else
209. system("cls");
210. addbooks();
211. }
212. }
213. void deletebooks() //function that delete items from file fp
214. {
215. system("cls");
216. int d;
217. char another='y';
218. while(another=='y') //infinite loop
219. {
220. system("cls");
221. gotoxy(10,5);
222. printf("Enter the Book ID to delete:");
223. scanf("%d",&d);
224. fp=fopen("Bibek.dat","rb+");
225. rewind(fp);
226. while(fread(&a,sizeof(a),1,fp)==1)
227. {
228. if(a.id==d)
229. {
230.  
231. gotoxy(10,7);
232. printf("The book record is available");
233. gotoxy(10,8);
234. printf("Book name is %s",a.name);
235. gotoxy(10,9);
236. printf("Rack No. is %d",a.rackno);
237. findbook='t';
238. }
239. }
240. if(findbook!='t')
241. {
242. gotoxy(10,10);
243. printf("No record is found modify the search");
244. if(getch())
245. mainmenu();
246. }
247. if(findbook=='t' )
248. {
249. gotoxy(10,9);
250. printf("Do you want to delete it?(Y/N):");
251. if(getch()=='y')
252. {
253. ft=fopen("test.dat","wb+"); //temporary file for delete
254. rewind(fp);
255. while(fread(&a,sizeof(a),1,fp)==1)
256. {
257. if(a.id!=d)
258. {
259. fseek(ft,0,SEEK_CUR);
260. fwrite(&a,sizeof(a),1,ft); //write all in tempory file except that
261. } //we want to delete
262. }
263. fclose(ft);
264. fclose(fp);
265. remove("Bibek.dat");
266. rename("test.dat","Bibek.dat"); //copy all item from temporary file to fp except that
267. fp=fopen("Bibek.dat","rb+"); //we want to delete
268. if(findbook=='t')
269. {
270. gotoxy(10,10);
271. printf("The record is sucessfully deleted");
272. gotoxy(10,11);
273. printf("Delete another record?(Y/N)");
274. }
275. }
276. else
277. mainmenu();
278. fflush(stdin);
279. another=getch();
280. }
281. }
282. gotoxy(10,15);
283. mainmenu();
284. }
285. void searchbooks()
286. {
287. system("cls");
288. int d;
289. printf("*****************************Search Books*********************************");
290. gotoxy(20,10);
291. printf("\xDB\xDB\xDB\xB2 1. Search By ID");
292. gotoxy(20,14);
293. printf("\xDB\xDB\xDB\xB2 2. Search By Name");
294. gotoxy( 15,20);
295. printf("Enter Your Choice");
296. fp=fopen("Bibek.dat","rb+"); //open file for reading propose
297. rewind(fp); //move pointer at the begining of file
298. switch(getch())
299. {
300. case '1':
301. {
302. system("cls");
303. gotoxy(25,4);
304. printf("****Search Books By Id****");
305. gotoxy(20,5);
306. printf("Enter the book id:");
307. scanf("%d",&d);
308. gotoxy(20,7);
309. printf("Searching........");
310. while(fread(&a,sizeof(a),1,fp)==1)
311. {
312. if(a.id==d)
313. {
314. delay(2);
315. gotoxy(20,7);
316. printf("The Book is available");
317. gotoxy(20,8);
318. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
319. gotoxy(20,9);
320. printf("\xB2 ID:%d",a.id);gotoxy(47,9);printf("\xB2");
321. gotoxy(20,10);
322. printf("\xB2 Name:%s",a.name);gotoxy(47,10);printf("\xB2");
323. gotoxy(20,11);
324. printf("\xB2 Author:%s ",a.Author);gotoxy(47,11);printf("\xB2");
325. gotoxy(20,12);
326. printf("\xB2 Qantity:%d ",a.quantity);gotoxy(47,12);printf("\xB2"); gotoxy(47,11);printf("\xB2");
327. gotoxy(20,13);
328. printf("\xB2 Price:Rs.%.2f",a.Price);gotoxy(47,13);printf("\xB2");
329. gotoxy(20,14);
330. printf("\xB2 Rack No:%d ",a.rackno);gotoxy(47,14);printf("\xB2");
331. gotoxy(20,15);
332. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
333. findbook='t';
334. }
335.  
336. }
337. if(findbook!='t') //checks whether conditiion enters inside loop or not
338. {
339. gotoxy(20,8);
340. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
341. gotoxy(20,9);printf("\xB2"); gotoxy(38,9);printf("\xB2");
342. gotoxy(20,10);
343. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
344. gotoxy(22,9);printf("\aNo Record Found");
345. }
346. gotoxy(20,17);
347. printf("Try another search?(Y/N)");
348. if(getch()=='y')
349. searchbooks();
350. else
351. mainmenu();
352. break;
353. }
354. case '2':
355. {
356. char s[15];
357. system("cls");
358. gotoxy(25,4);
359. printf("****Search Books By Name****");
360. gotoxy(20,5);
361. printf("Enter Book Name:");
362. scanf("%s",s);
363. int d=0;
364. while(fread(&a,sizeof(a),1,fp)==1)
365. {
366. if(strcmp(a.name,(s))==0) //checks whether a.name is equal to s or not
367. {
368. gotoxy(20,7);
369. printf("The Book is available");
370. gotoxy(20,8);
371. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
372. gotoxy(20,9);
373. printf("\xB2 ID:%d",a.id);gotoxy(47,9);printf("\xB2");
374. gotoxy(20,10);
375. printf("\xB2 Name:%s",a.name);gotoxy(47,10);printf("\xB2");
376. gotoxy(20,11);
377. printf("\xB2 Author:%s",a.Author);gotoxy(47,11);printf("\xB2");
378. gotoxy(20,12);
379. printf("\xB2 Qantity:%d",a.quantity);gotoxy(47,12);printf("\xB2");
380. gotoxy(20,13);
381. printf("\xB2 Price:Rs.%.2f",a.Price);gotoxy(47,13);printf("\xB2");
382. gotoxy(20,14);
383. printf("\xB2 Rack No:%d ",a.rackno);gotoxy(47,14);printf("\xB2");
384. gotoxy(20,15);
385. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
386. d++;
387. }
388.  
389. }
390. if(d==0)
391. {
392. gotoxy(20,8);
393. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
394. gotoxy(20,9);printf("\xB2"); gotoxy(38,9);printf("\xB2");
395. gotoxy(20,10);
396. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
397. gotoxy(22,9);printf("\aNo Record Found");
398. }
399. gotoxy(20,17);
400. printf("Try another search?(Y/N)");
401. if(getch()=='y')
402. searchbooks();
403. else
404. mainmenu();
405. break;
406. }
407. default :
408. getch();
409. searchbooks();
410. }
411. fclose(fp);
412. }
413. void issuebooks(void) //function that issue books from library
414. {
415. int t;
416.  
417. system("cls");
418. printf("********************************ISSUE SECTION**************************");
419. gotoxy(10,5);
420. printf("\xDB\xDB\xDB\xDb\xB2 1. Issue a Book");
421. gotoxy(10,7);
422. printf("\xDB\xDB\xDB\xDb\xB2 2. View Issued Book");
423. gotoxy(10,9);
424. printf("\xDB\xDB\xDB\xDb\xB2 3. Search Issued Book");
425. gotoxy(10,11);
426. printf("\xDB\xDB\xDB\xDb\xB2 4. Remove Issued Book");
427. gotoxy(10,14);
428. printf("Enter a Choice:");
429. switch(getch())
430. {
431. case '1': //issue book
432. {
433. system("cls");
434. int c=0;
435. char another='y';
436. while(another=='y')
437. {
438. system("cls");
439. gotoxy(15,4);
440. printf("***Issue Book section***");
441. gotoxy(10,6);
442. printf("Enter the Book Id:");
443. scanf("%d",&t);
444. fp=fopen("Bibek.dat","rb");
445. fs=fopen("Issue.dat","ab+");
446. if(checkid(t)==0) //issues those which are present in library
447. {
448. gotoxy(10,8);
449. printf("The book record is available");
450. gotoxy(10,9);
451. printf("There are %d unissued books in library ",a.quantity);
452. gotoxy(10,10);
453. printf("The name of book is %s",a.name);
454. gotoxy(10,11);
455. printf("Enter student name:");
456. scanf("%s",a.stname);
457. // struct dosdate_t d; //for current date
458. // _dos_getdate(&d);
459. // a.issued.dd=d.day;
460. // a.issued.mm=d.month;
461. //a.issued.yy=d.year;
462. gotoxy(10,12);
463. printf("Issued date=%d-%d-%d",a.issued.dd,a.issued.mm,a.issued.yy);
464. gotoxy(10,13);
465. printf("The BOOK of ID %d is issued",a.id);
466. a.duedate.dd=a.issued.dd+RETURNTIME; //for return date
467. a.duedate.mm=a.issued.mm;
468. a.duedate.yy=a.issued.yy;
469. if(a.duedate.dd>30)
470. {
471. a.duedate.mm+=a.duedate.dd/30;
472. a.duedate.dd-=30;
473.  
474. }
475. if(a.duedate.mm>12)
476. {
477. a.duedate.yy+=a.duedate.mm/12;
478. a.duedate.mm-=12;
479.  
480. }
481. gotoxy(10,14);
482. printf("To be return:%d-%d-%d",a.duedate.dd,a.duedate.mm,a.duedate.yy);
483. fseek(fs,sizeof(a),SEEK_END);
484. fwrite(&a,sizeof(a),1,fs);
485. fclose(fs);
486. c=1;
487. }
488. if(c==0)
489. {
490. gotoxy(10,11);
491. printf("No record found");
492. }
493. gotoxy(10,15);
494. printf("Issue any more(Y/N):");
495. fflush(stdin);
496. another=getche();
497. fclose(fp);
498. }
499.  
500. break;
501. }
502. case '2': //show issued book list
503. {
504. system("cls");
505. int j=4;
506. printf("*******************************Issued book list*******************************\n");
507. gotoxy(2,2);
508. printf("STUDENT NAME CATEGORY ID BOOK NAME ISSUED DATE RETURN DATE");
509. fs=fopen("Issue.dat","rb");
510. while(fread(&a,sizeof(a),1,fs)==1)
511. {
512.  
513. gotoxy(2,j);
514. printf("%s",a.stname);
515. gotoxy(18,j);
516. printf("%s",a.cat);
517. gotoxy(30,j);
518. printf("%d",a.id);
519. gotoxy(36,j);
520. printf("%s",a.name);
521. gotoxy(51,j);
522. printf("%d-%d-%d",a.issued.dd,a.issued.mm,a.issued.yy );
523. gotoxy(65,j);
524. printf("%d-%d-%d",a.duedate.dd,a.duedate.mm,a.duedate.yy);
525. //struct dosdate_t d;
526. //_dos_getdate(&d);
527. gotoxy(50,25);
528. // printf("Current date=%d-%d-%d",d.day,d.month,d.year);
529. j++;
530.  
531. }
532. fclose(fs);
533. gotoxy(1,25);
534. returnfunc();
535. }
536. break;
537. case '3': //search issued books by id
538. {
539. system("cls");
540. gotoxy(10,6);
541. printf("Enter Book ID:");
542. int p,c=0;
543. char another='y';
544. while(another=='y')
545. {
546.  
547. scanf("%d",&p);
548. fs=fopen("Issue.dat","rb");
549. while(fread(&a,sizeof(a),1,fs)==1)
550. {
551. if(a.id==p)
552. {
553. issuerecord();
554. gotoxy(10,12);
555. printf("Press any key.......");
556. getch();
557. issuerecord();
558. c=1;
559. }
560.  
561. }
562. fflush(stdin);
563. fclose(fs);
564. if(c==0)
565. {
566. gotoxy(10,8);
567. printf("No Record Found");
568. }
569. gotoxy(10,13);
570. printf("Try Another Search?(Y/N)");
571. another=getch();
572. }
573. }
574. break;
575. case '4': //remove issued books from list
576. {
577. system("cls");
578. int b;
579. FILE *fg; //declaration of temporary file for delete
580. char another='y';
581. while(another=='y')
582. {
583. gotoxy(10,5);
584. printf("Enter book id to remove:");
585. scanf("%d",&b);
586. fs=fopen("Issue.dat","rb+");
587. while(fread(&a,sizeof(a),1,fs)==1)
588. {
589. if(a.id==b)
590. {
591. issuerecord();
592. findbook='t';
593. }
594. if(findbook=='t')
595. {
596. gotoxy(10,12);
597. printf("Do You Want to Remove it?(Y/N)");
598. if(getch()=='y')
599. {
600. fg=fopen("record.dat","wb+");
601. rewind(fs);
602. while(fread(&a,sizeof(a),1,fs)==1)
603. {
604. if(a.id!=b)
605. {
606. fseek(fs,0,SEEK_CUR);
607. fwrite(&a,sizeof(a),1,fg);
608. }
609. }
610. fclose(fs);
611. fclose(fg);
612. remove("Issue.dat");
613. rename("record.dat","Issue.dat");
614. gotoxy(10,14);
615. printf("The issued book is removed from list");
616.  
617. }
618.  
619. }
620. if(findbook!='t')
621. {
622. gotoxy(10,15);
623. printf("No Record Found");
624. }
625. }
626. gotoxy(10,16);
627. printf("Delete any more?(Y/N)");
628. another=getch();
629. }
630. }
631. default:
632. gotoxy(10,18);
633. printf("\aWrong Entry!!");
634. getch();
635. issuebooks();
636. break;
637. }
638. gotoxy(1,30);
639. returnfunc();
640. }
641. void viewbooks(void) //show the list of book persists in library
642. {
643. int i=0,j;
644. system("cls");
645. gotoxy(1,1);
646. printf("*********************************Book List*****************************");
647. gotoxy(2,2);
648. printf(" CATEGORY ID BOOK NAME AUTHOR QTY PRICE RackNo ");
649. j=4;
650. fp=fopen("Bibek.dat","rb");
651. while(fread(&a,sizeof(a),1,fp)==1)
652. {
653. gotoxy(3,j);
654. printf("%s",a.cat);
655. gotoxy(16,j);
656. printf("%d",a.id);
657. gotoxy(22,j);
658. printf("%s",a.name);
659. gotoxy(36,j);
660. printf("%s",a.Author);
661. gotoxy(50,j);
662. printf("%d",a.quantity);
663. gotoxy(57,j);
664. printf("%.2f",a.Price);
665. gotoxy(69,j);
666. printf("%d",a.rackno);
667. printf("\n\n");
668. j++;
669. i=i+a.quantity;
670. }
671. gotoxy(3,25);
672. printf("Total Books =%d",i);
673. fclose(fp);
674. gotoxy(35,25);
675. returnfunc();
676. }
677. void editbooks(void) //edit information about book
678. {
679. system("cls");
680. int c=0;
681. int d,e;
682. gotoxy(20,4);
683. printf("****Edit Books Section****");
684. char another='y';
685. while(another=='y')
686. {
687. system("cls");
688. gotoxy(15,6);
689. printf("Enter Book Id to be edited:");
690. scanf("%d",&d);
691. fp=fopen("Bibek.dat","rb+");
692. while(fread(&a,sizeof(a),1,fp)==1)
693. {
694. if(checkid(d)==0)
695. {
696. gotoxy(15,7);
697. printf("The book is availble");
698. gotoxy(15,8);
699. printf("The Book ID:%d",a.id);
700. gotoxy(15,9);
701. printf("Enter new name:");scanf("%s",a.name);
702. gotoxy(15,10);
703. printf("Enter new Author:");scanf("%s",a.Author);
704. gotoxy(15,11);
705. printf("Enter new quantity:");scanf("%d",&a.quantity);
706. gotoxy(15,12);
707. printf("Enter new price:");scanf("%f",&a.Price);
708. gotoxy(15,13);
709. printf("Enter new rackno:");scanf("%d",&a.rackno);
710. gotoxy(15,14);
711. printf("The record is modified");
712. fseek(fp,ftell(fp)-sizeof(a),0);
713. fwrite(&a,sizeof(a),1,fp);
714. fclose(fp);
715. c=1;
716. }
717. if(c==0)
718. {
719. gotoxy(15,9);
720. printf("No record found");
721. }
722. }
723. gotoxy(15,16);
724. printf("Modify another Record?(Y/N)");
725. fflush(stdin);
726. another=getch() ;
727. }
728. returnfunc();
729. }
730. void returnfunc(void)
731. {
732. {
733. printf(" Press ENTER to return to main menu");
734. }
735. a:
736. if(getch()==13) //allow only use of enter
737. mainmenu();
738. else
739. goto a;
740. }
741. int getdata()
742. {
743. int t;
744. gotoxy(20,3);printf("Enter the Information Below");
745. gotoxy(20,4);printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
746. gotoxy(20,5);
747. printf("\xB2");gotoxy(46,5);printf("\xB2");
748. gotoxy(20,6);
749. printf("\xB2");gotoxy(46,6);printf("\xB2");
750. gotoxy(20,7);
751. printf("\xB2");gotoxy(46,7);printf("\xB2");
752. gotoxy(20,8);
753. printf("\xB2");gotoxy(46,8);printf("\xB2");
754. gotoxy(20,9);
755. printf("\xB2");gotoxy(46,9);printf("\xB2");
756. gotoxy(20,10);
757. printf("\xB2");gotoxy(46,10);printf("\xB2");
758. gotoxy(20,11);
759. printf("\xB2");gotoxy(46,11);printf("\xB2");
760. gotoxy(20,12);
761. printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2");
762. gotoxy(21,5);
763. printf("Category:");
764. gotoxy(31,5);
765. printf("%s",catagories[s-1]);
766. gotoxy(21,6);
767. printf("Book ID:\t");
768. gotoxy(30,6);
769. scanf("%d",&t);
770. if(checkid(t) == 0)
771. {
772. gotoxy(21,13);
773. printf("\aThe book id already exists\a");
774. getch();
775. mainmenu();
776. return 0;
777. }
778. a.id=t;
779. gotoxy(21,7);
780. printf("Book Name:");gotoxy(33,7);
781. scanf("%s",a.name);
782. gotoxy(21,8);
783. printf("Author:");gotoxy(30,8);
784. scanf("%s",a.Author);
785. gotoxy(21,9);
786. printf("Quantity:");gotoxy(31,9);
787. scanf("%d",&a.quantity);
788. gotoxy(21,10);
789. printf("Price:");gotoxy(28,10);
790. scanf("%f",&a.Price);
791. gotoxy(21,11);
792. printf("Rack No:");gotoxy(30,11);
793. scanf("%d",&a.rackno);
794. return 1;
795. }
796. int checkid(int t) //check whether the book is exist in library or not
797. {
798. rewind(fp);
799. while(fread(&a,sizeof(a),1,fp)==1)
800. if(a.id==t)
801. return 0; //returns 0 if book exits
802. return 1; //return 1 if it not
803. }
804. int t(void) //for time
805. {
806. time_t t;
807. time(&t);
808. printf("Date and time:%s\n",ctime(&t));
809.  
810. return 0 ;
811. }
812. //void show_mouse(void) //show inactive mouse pointer in programme
813. //{
814. //union REGS in,out;
815. //
816. // in.x.ax = 0x1;
817. // int86(0x33,&in,&out);
818. //}
819. void Password(void) //for password option
820. {
821.  
822. system("cls");
823. char d[25]="Password Protected";
824. char ch,pass[10];
825. int i=0,j;
826. //textbackground(WHITE);
827. //textcolor(RED);
828. gotoxy(10,4);
829. for(j=0;j<20;j++)
830. {
831. delay(50);
832. printf("*");
833. }
834. for(j=0;j<20;j++)
835. {
836. delay(50);
837. printf("%c",d[j]);
838. }
839. for(j=0;j<20;j++)
840. {
841. delay(50);
842. printf("*");
843. }
844. gotoxy(10,10);
845. gotoxy(15,7);
846. printf("Enter Password:");
847.  
848. while(ch!=13)
849. {
850. ch=getch();
851.  
852. if(ch!=13 && ch!=8){
853. putch('*');
854. pass[i] = ch;
855. i++;
856. }
857. }
858. pass[i] = '\0';
859. if(strcmp(pass,password)==0)
860. {
861.  
862. gotoxy(15,9);
863. //textcolor(BLINK);
864. printf("Password match");
865. gotoxy(17,10);
866. printf("Press any key to countinue.....");
867. getch();
868. mainmenu();
869. }
870. else
871. {
872. gotoxy(15,16);
873. printf("\aWarning!! Incorrect Password");
874. getch();
875. Password();
876. }
877. }
878. void issuerecord() //display issued book's information
879. {
880. system("cls");
881. gotoxy(10,8);
882. printf("The Book has taken by Mr. %s",a.stname);
883. gotoxy(10,9);
884. printf("Issued Date:%d-%d-%d",a.issued.dd,a.issued.mm,a.issued.yy);
885. gotoxy(10,10);
886. printf("Returning Date:%d-%d-%d",a.duedate.dd,a.duedate.mm,a.duedate.yy);
887. }
888. void loaderanim()
889. {
890. int loader;
891. system("cls");
892. gotoxy(20,10);
893. printf("LOADING........");
894. printf("\n\n");
895. gotoxy(22,11);
896. for(loader=1;loader<20;loader++)
897. {
898. delay(100);printf("%c",219);}
899. }
900. //End of program
901.  

     
     

     
     

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