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Gold Medal Software 3
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Gold Medal Software - Volume 3 (Gold Medal) (1994).iso
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word.arj
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WGT05.C
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C/C++ Source or Header
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1993-01-28
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56 lines
#include <conio.h>
#include <wgt.h>
/* WORDUP Graphics Toolkit Version 3.5
Demonstration program 5
Draws vertical lines of different colours, and rotates the colours
until you hit a key.
Note: Fast colour rotation with many colours causes 'snow'
*/
int x,y,col;
color palette[256];
void main(void)
{
vga256(); // initializes system
for (y=0; 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
wsetpalette(0,255,palette); // and finally change them
// all at once
for (y=0; y<200; y++) // draw lines down the screen
{
wsetcolor(y);
wline(0,y,319,y);
}
do {
wcolrotate(1,255,0,palette);
} while (kbhit() == 0);
getch(); // get the key
do {
wcolrotate(1,255,1,palette);
} while (kbhit() == 0);
getch(); // get the key
do {
wcolrotate(1,100,1,palette);
wcolrotate(100,255,0,palette);
} while (kbhit() == 0);
getch(); // get the key
textmode(C80); // used to return to text mode
}