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WGT08.C
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C/C++ Source or Header
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1992-09-08
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62 lines
#include <conio.h>
#include <wgt.h>
/* WORDUP Graphics Toolkit Version 3.0
Demonstration program 8
Shows how the region fill function works with various shapes.
Note: Fill is not perfected yet!
*/
unsigned _stklen=64000; // set the stack very large to handle
// any large fill operations
int x,y,col;
color palette[256];
void main(void)
{
vga256(); // initializes system
for (y=1; y<64; y++)
wsetrgb(y,y,y,y,&palette); // sets first 64 colours to grey
// note the use of &
for (y=0; y<64; y++)
wsetrgb(y+64,y,0,0,&palette); // next 64 to red
for (y=0; y<64; y++)
wsetrgb(y+128,0,y,0,&palette); // green
for (y=0; y<64; y++)
wsetrgb(y+192,0,0,y,&palette); // blue
wsetrgb(1,63,63,63,&palette); // sets color 1 to white
wsetpalette(0,255,palette); // and finally change them
// all at once
wcls(0);
wsetcolor(1);
wcircle(160,100,50); // try filling a circle
getch();
wsetcolor(40);
wregionfill(160,100);
wsetcolor(170);
wregionfill(0,0);
getch();
wcls(0);
for (col=1; col<5000; col++) // try filling 10,000 random pixels
{
wsetcolor(rand() % 255);
wputpixel(rand() % 320,rand() % 200);
}
getch();
wsetcolor(40);
wclip(50,50,250,150); // fill works with clipping too!
wregionfill(160,100);
getch(); // get the key
textmode(C80); // used to return to text mode
}