Function name: PARSFNM
Function: Analysis File Name
Usage: char * PARSFNM (Char * Cmdline, Struct FCB * fcbptr, int option);
Example:
#include
#include
#include
#include
Int main (void)
{
Char line [80];
Struct FCB BLK;
/ * Get file name * /
Printf ("Enter Drive and File Name (No Path - IE. A: File.dat) / N");
Gets (line);
/ * PUT FILE Name in FCB * /
IF (PARSFNM (Line, & BLK, 1) == NULL)
Printf ("Error In Parsfm Call / N);
Else
Printf ("DRIVE #% D Name:% 11S / N", BLK.FCB_DRIVE, BLK.FCB_NAME;
Return 0;
}
Function name: peek
Function: Check storage unit
Usage: INT PEEK (Int segment);
Example:
#include
#include
#include
Int main (void)
{
INT value = 0;
Printf ("THE CURRENT Status of Your Keyboard IS: / N");
Value = peek (0x0040, 0x0017);
IF (Value & 1)
Printf ("Right Shift On / N");
Else
Printf ("Right SHIFT OFF / N");
IF (Value & 2)
Printf ("LEFT SHIFT ON / N");
Else
Printf ("LEFT SHIFT OFF / N");
IF (Value & 4)
Printf ("Control Key ON / N");
Else
Printf ("Control Key Off / N");
IF (Value & 8)
Printf ("Alt Key ON / N");
Else
Printf ("Alt Key Off / N");
IF (Value & 16)
Printf ("Scroll Lock ON / N");
Else
Printf ("Scroll Lock Off / N";
IF (Value & 32)
Printf ("NUM LOCK ON / N");
Else
Printf ("NUM LOCK OFF / N");
IF (Value & 64)
Printf ("Caps Lock ON / N");
Else
Printf ("Caps Lock Off / N");
Return 0;
}
Function name: peekb
Function: Check storage unit
Usage: CHAR Peekb (int segment, unsigned offset);
Example:
#include
#include
#include
Int main (void)
{
INT value = 0;
Printf ("THE CURRENT Status of Your Keyboard IS: / N");
Value = peekb (0x0040, 0x0017);
IF (Value & 1)
Printf ("Right Shift On / N");
Else
Printf ("Right SHIFT OFF / N");
IF (Value & 2)
Printf ("LEFT SHIFT ON / N");
Else
Printf ("LEFT SHIFT OFF / N");
IF (Value & 4)
Printf ("Control Key ON / N");
Else
Printf ("Control Key Off / N");
IF (Value & 8)
Printf ("Alt Key ON / N");
Else
Printf ("Alt Key Off / N");
IF (Value & 16)
Printf ("Scroll Lock ON / N");
Else
Printf ("Scroll Lock Off / N";
IF (Value & 32)
Printf ("NUM LOCK ON / N");
Else
Printf ("NUM LOCK OFF / N");
IF (Value & 64)
Printf ("Caps Lock ON / N");
Else
Printf ("Caps Lock Off / N");
Return 0;
}
Function name: Perror
Function: System error message
Usage: Void Perror (Char * String);
Example:
#include
Int main (void)
{
File * fp;
fp = fopen ("PERROR.DAT", "R");
IF (! fp)
"Unable to open file forread");
Return 0;
}
Function name: Piemelice
Function: Draw and populate a fan
Usage: Void Far Piemelice (int X, int Stanle, int endangle, int RADIUS);
Example:
#include
#include
#include
#include
Int main (void)
{
/ * Request Auto Detection * /
INT GDRIVER = Detect, Gmode, ERRORCODE
Int midx, midy;
INT Stangle = 45, endangle = 135, radius = 100;
/ * Initialize Graphics and Local Variables * /
INITGRAPH (& GDriver, & gmode, ");
/ * Read Result of Initization * /
ErrorCode = graphresult ();
IF (ErrorCode! = GROK) / * an error occurred * /
{
Printf ("Graphics Error:% S / N", GrapherrorMsg (ErrorCode)); Printf ("Press Any Key to Halt:");
Getch ();
EXIT (1); / * Terminate with an error code * /
}
MIDX = getmaxx () / 2;
Midy = getmaxy () / 2;
/ * SET FILL STYLE AND DRAW A PIE SLICE * /
SetFillStyle (Empty_Fill, getMaxColor ());
Pieslice (MIDX, Midy, Stangle, Endangle, RADIUS);
/ * Clean Up * /
Getch ();
Closegraph ();
Return 0;
}
Function name: Poke
Function: save the value to a given storage unit
Usage: Void Poke (int segment, int offset, int value);
Example:
#include
#include
Int main (void)
{
CLRSCR ();
CPRINTF ("Make Sure The Scroll Lock Key IS Off and Press Any Key / R / N");
Getch ();
Poke (0x0000, 0x0417, 16);
CPRINTF ("THE SCROLL LOCK IS NOW ON / R / N);
Return 0;
}
Function name: pokeb
Function: save the value to a given storage unit
Usage: void pokeb (int segment, int offset, char value);
Example:
#include
#include
Int main (void)
{
CLRSCR ();
CPRINTF ("Make Sure The Scroll Lock Key IS Off and Press Any Key / R / N");
Getch ();
Pokeb (0x0000, 0x0417, 16);
CPRINTF ("THE SCROLL LOCK IS NOW ON / R / N);
Return 0;
}
Function name: poly
Function: Generate a polynomial according to parameters
Usage: Double Poly (Double X, INT N, Double C []);
Example:
#include
#include
/ * POLYNOMIAL: X ** 3 - 2X ** 2 5X - 1 * /
Int main (void)
{
Double array [] = {-1.0, 5.0, -2.0, 1.0};
Double Result;
Result = POLY (2.0, 3, array);
Printf ("The Polynomial: x ** 3 - 2.0x ** 2 5X - 1 AT 2.0 IS% LF / N",
Result;
Return 0;
}
Function name: POW
Function: Index function (X of X)
Usage: Double Pow (Double X, Double Y);
Example:
#include
#include
Int main (void)
{
Double x = 2.0, y = 3.0;
Printf ("% lf raised to% LF IS% LF / N", X, Y, POW (X, Y)); RETURN 0;
}
Function name: Pow10
Function: Index function (10 P movable)
Usage: Double Pow10 (INT P);
Example:
#include
#include
Int main (void)
{
Double P = 3.0;
Printf ("Ten Raised TO% LF IS% LF / N", P, POW10 (P));
Return 0;
}
Function name: Printf
Function: Generate a function of formatting output
Usage: int printf (char * format ...);
Example:
#include
#include
#define i 555
#define r 5.5
Int main (void)
{
INT I, J, K, L;
Char BUF [7];
Char * prefix = buf;
Char TP [20];
Printf ("prefix 6d 6o 8x 10.2e"
"10.2f / n");
STRCPY (Prefix, "%");
For (i = 0; i <2; i )
{
For (j = 0; j <2; j )
For (k = 0; k <2; k )
For (l = 0; l <2; l )
{
IF (i == 0) STRCAT (Prefix, "-");
IF (j == 0) STRCAT (Prefix, " ");
IF (k == 0) STRCAT (Prefix, "#");
IF (l == 0) STRCAT (Prefix, "0");
Printf ("% 5s |", prefix;
STRCPY (TP, prefix);
STRCAT (TP, "6D |");
Printf (TP, I);
STRCPY (TP, ");
STRCPY (TP, prefix);
STRCAT (TP, "6o |");
Printf (TP, I);
STRCPY (TP, ");
STRCPY (TP, prefix);
STRCAT (TP, "8x |");
Printf (TP, I);
STRCPY (TP, ");
STRCPY (TP, prefix);
STRCAT (TP, "10.2e |");
Printf (TP, R);
STRCPY (TP, prefix);
STRCAT (TP, "10.2F |");
Printf (TP, R);
Printf ("/ n");
STRCPY (Prefix, "%");
}
}
Return 0;
}
Function name: PUTC
Function: Output a character in the specified stream
Usage: int PUTC (INT CH, File * Stream);
Example:
#include
Int main (void)
{
Char msg [] = "Hello WORLD / N";
INT i = 0;
While (MSG [i])
PUTC (MSG [i ], stdout; return 0;
}
Function name: PUTCH
Function: Output Character to Console
Usage: int PUTCH (INT CH);
Example:
#include
#include
Int main (void)
{
CHAR CH = 0;
Printf ("INPUT A String:");
While ((ch! = '/ r')))))
{
CH = GetCh ();
PUTCH (CH);
}
Return 0;
}
Function name: Putchar
Function: Output characters on STDOUT
Usage: int Putchar (int CH);
Example:
#include
/ * Define Some Box-Drawing Characters * /
#define left_top 0xDA
#define right_top 0xBF
#define horiz 0xc4
#define Vert 0xB3
#define left_bot 0xc0
#define right_bot 0xd9
Int main (void)
{
CHAR I, J;
/ * DRAW the top of the box * /
Putchar (Left_top);
For (i = 0; i <10; i )
PUTCHAR (HORIZ);
Putchar (right_top);
PUTCHAR ('/ n');
/ * DRAW THE MIDDLE * /
For (i = 0; i <4; i )
{
Putchar (VERT);
For (j = 0; j <10; j )
PUTCHAR ('');
Putchar (VERT);
PUTCHAR ('/ n');
}
/ * DRAW the bottom * /
Putchar (left_bot);
For (i = 0; i <10; i )
PUTCHAR (HORIZ);
Putchar (right_bot);
PUTCHAR ('/ n');
Return 0;
}
Function name: Putenv
Function: add string to the current environment
Usage: int Putenv (char * envvar);
Example:
#include
#include
#include
#include
#include
Int main (void)
{
CHAR * PATH, * PTR;
INT i = 0;
/ * Get the current path environment * /
PTR = GetENV ("path");
/ * SET UP New Path * /
Path = Malloc (Strlen (PTR) 15);
STRCPY (PATH, "PATH =");
STRCAT (PATH, PTR);
STRCAT (PATH, "; C: // Temp");
/ * Replace The Current Path and Display Current Environment * /
Putenv (PATH);
While (Environ [i])
Printf ("% s / n", environ [i ]);
Return 0;
}
Function name: PUTIMAGE
Function: Output a bitmap on the screen
Usage: Void Far Putimage (int X, int y, void far * bitmap, int su);
Example:
#include
#include
#include
#include
#define arrow_size 10
Void Draw_arrow (int X, int y);
Int main (void)
{
/ * Request Autodetection * /
INT GDRIVER = Detect, Gmode, ERRORCODE
Void * arrow;
INT X, Y, MAXX;
Unsigned int size;
/ * Initialize Graphics and Local Variables * /
INITGRAPH (& GDriver, & gmode, ");
/ * Read Result of Initization * /
ErrorCode = graphresult ();
IF (ErrorCode! = GROK) / * an error occurred * /
{
Printf ("Graphics Error:% S / N", GrapherrorMsg (ErrorCode));
Printf ("Press Any Key to Halt:");
Getch ();
EXIT (1); / * Terminate with an error code * /
}
Maxx = getmaxx ();
X = 0;
y = getmaxy () / 2;
/ * DRAW the image to be grabbed * /
Draw_arrow (x, y);
/ * Calculate the size of the image * /
SIZE = Imagesize (x, y-arrow_size, x (4 * arrow_size), y arrow_size);
/ * Allocate Memory To Hold The Image * /
Arrow = malloc (size);
/ * GRAB the image * /
GetImage (x, y-arrow_size, x (4 * arrow_size), y arrow_size, arrow;
/ * Repeat Until a key ispess * /
While (! kbhit ())
{
/ * ERASE OLD Image * /
PUTIMAGE (X, Y-arrow_size, arrow, xor_put);
X = arrow_size;
IF (x> = maxx)
X = 0;
/ * Plot new image * /
PUTIMAGE (X, Y-arrow_size, arrow, xor_put);
}
/ * Clean Up * /
FREE (arrow);
Closegraph ();
Return 0;
}
Void Draw_arrow (int x, int y)
{
/ * Draw an arrow on the screen * /
Moveto (X, Y);
Lineerel (4 * arrow_size, 0);
Lineerel (-2 * arrow_size, -1 * arrow_size);
LineRel (0, 2 * arrow_size);
Lineerel (2 * arrow_size, -1 * arrow_size);
}
Function name: PUTPIXEL
Function: Draw a pixel in the designated location
Usage: Void Far Putpixel (int X, int y, int pixelcolor);
Example:
#include
#include
#include
#include
#include
#define pixel_count 1000
#define delay_time 100 / * in milliseconds * /
Int main (void)
{
/ * Request Autodetection * /
INT GDRIVER = Detect, Gmode, ERRORCODE
INT I, X, Y, Color, Maxx, Maxy, MaxColor, SEED
/ * Initialize Graphics and Local Variables * /
INITGRAPH (& GDriver, & gmode, ");
/ * Read Result of Initization * /
ErrorCode = graphresult ();
IF (ErrorCode! = GROK) / * an error occurred * /
{
Printf ("Graphics Error:% S / N", GrapherrorMsg (ErrorCode));
Printf ("Press Any Key to Halt:");
Getch ();
EXIT (1); / * Terminate with an error code * /
}
Maxx = getmaxx () 1;
MAXY = getMaxy () 1;
MaxColor = getMaxColor () 1;
While (! kbhit ())
{
/ * Seed the random number generator * /
SEED = Random (32767);
SRAND (SEED);
For (i = 0; i { X = random (maxx); Y = random (MAXY); Color = random (maxcolor); PUTPIXEL (X, Y, Color); } DELAY (Delay_Time); SRAND (SEED); For (i = 0; i { X = random (maxx); Y = random (MAXY); Color = random (maxcolor); IF (color == getpixel (x, y)) Putpixel (x, y, 0); } } / * Clean Up * / Getch (); Closegraph (); Return 0; } Function name: PUTS Function: send a string to the stream Usage: int PUTS (Char * String); Example: #include Int main (void) { Char string [] = "this is an example output string / n"; PUTS (STRING); Return 0; } Function name: Puttext Function: copy text from the storage area to the screen Usage: int PutText (int LEFT, INT TOP, INT RIGHT, INT BOTTOM, VOID * SOURCE); #include Int main (void) { Char buffer [512]; / * Put Some text to the console * / CLRSCR (); gotoxy (20, 12); CPRINTF ("this is a test. press any key to contact ..."); Getch (); / * Grab screen contents * / GetText (20, 12, 36, 21, buffer); CLRSCR (); / * Put selected characters back to the screen * / gotoxy (20, 12); Puttext (20, 12, 36, 21, buffer); Getch (); Return 0; } Function name: PUTW Function: send a character or word to the stream Usage: int PUTW (int W, file * stream); Example: #include #include #define fname "Test. $$$" Int main (void) { File * fp; Int word; / * Place the Word in a file * / FP = fopen (FNAME, "WB"); IF (fp == null) { Printf ("Error Opening File% S / N", FNAME); Exit (1); } Word = 94; PUTW (Word, FP); IF (FERROR (FP)) Printf ("Error Writing to File / N); Else Printf ("Successful Write / N); Fclose (fp); / * Reopen THE FILE * / fp = fopen (FNAME, "RB"); IF (fp == null) { Printf ("Error Opening File% S / N", FNAME); Exit (1); } / * Extract the word * / Word = getW (fp); IF (FERROR (FP)) Printf ("ERROR READING FILE / N"); Else Printf ("Successful Read: Word =% D / N", Word; / * Clean Up * / Fclose (fp); Unlink (FNAME); Return 0; }
