7.
i .
. . , . , ѳ.
1.
.
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <graphics.h>
#define BGIPATH ":\\borlandc\\bgi"
// , *.bgi. ,
// BGI PATH.
#define ESC 27 // , getch()
#define UP_ARROW 72
#define DOWH_ARROW 80
#define RIGHT_ARROW 77
#define LEFT_ARROW 75
void Initialize ();
void MoveRec ();
int GraphDriver; //
int GraphMode; //
int MaxX, MaxY; //
int MaxColors; //
int ErrorCode; //
void main ()
{
Initialize ();
MoveRec ();
closegraph ();
}
void Initialize ()
{
detectgraph (&GraphDriver, &GraphMode);
initgraph (&GraphDriver, &GraphMode, BGIPATH);
ErrorCode - graphresult ();
if < ErrorCode!= grOk)
{
printf (" : %s\n", grapherrormsg (ErrorCode));
exit (1);
}
MaxColors=getmaxcolor () +1; //
MaxX=getmaxx (); //
MaxY=getmaxy ();
}
void MoveRec ()
{
int i, x, y, x1, y1, x2, y2;
int scalex=1, scaley=1;
setbkcolor (BLUE);
setfillstyle (1, WHITE);
// -
1=MaxX/2 -70; y1=MaxY/2-20;
x2=MaxX/2+70; y2=MaxY/2+20;
bar(x1, y1, 2, 2);
// . <S>
for (i=getch(); i!= ESC; i=getch())
{
if () continue; // -
switch (getch ())
{
case UP_ARROW: x=0; y=-1; break;
case DOWH_ARROW: x=0; y=1; break;
case RIGHT_ARROW: x=1; y=0; break;
case LEFT_ARROW: x=-1; y=0; break;
default: continue;
}
// ?
if ((x1+x*scalex<0) || (x2+x*scalex>MaxX)) x=0;
if ((y1+y*scaley<0) || (y2+y*scaley>MaxY)) y=0;
//
setfillstyle (1, BLUE);
bar (x1, y1, x2, y2);
// ,
setfillstyle (1, RED);
x1+=x*scalex; x2+=x*scalex;
| y1+=y* scaley; 2+= * scaley;
bar (x1, y1, x2, y2);
}
}
2.
" ", : , .
|
|
|
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <graphics.h>
#define BGIPATH ":\\borlandc\\bgi"
void Initialize ();
void Pixel ();
int GraphDriver, GraphMode, MaxX, MaxY, MaxColors, ErrorCode;
void main ()
{
Initialize ();
Pixel ();
closegraph ();
}
void Initialize ()
{
GraphDriver = DETECT; //
initgraph (&GraphDriver, &GraphMode, );
MaxColors=getmaxcolor () + 1;
MaxX = getmaxx (); MaxY = getmaxy ();
}
void Pixel ()
{
int seed= 1000;
int x,, h, w, color;
long int ;
cleadevice ();
rand (seed); //
// 20000
for(=0; <20000; ++)
{
x = 1 + random (X - 1); //
y = 1 + random (Y/2 - 1);
//
color = random (MaxColors);
putpixel (x, , color);
}
//
setviewport (0, MaxY/2, MaxX, MaxY, 1);
rand(seed);
for (i=0; i<20000; ++i)
{
x = 1 + random (MaxX - 1);
= 1 + random (MaxY - 1);
color = random (MaxColors);
putpixel (x, y, color);
}
getch();
}
getimage, imagesize, putimage. , ᒺ imagesize.
unsigned far imagesize(int left, int top, int right, int bottom); left, top ;
right, bottom .
getimage . :
void far getimage(int left, int top, int right, int bottom, void far *bitmap);
4 , bitmap (void) , . putimage , getimage. :
void far putimage(int left, int top, void far *bitmap, int op);
left, top ;
bitmap , ;
;
:
COPY_PUT 0 ﳿ
:
XOR_PUT 1
OR_PUT 2 ᒺ
AND_PUT 3
NOT_PUT 4
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