C/C++——С±à̸CÓïÑÔº¯ÊýÄÇЩÊÂ(24)
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1. setvectº¯Êý
setvectº¯ÊýµÄ¹¦ÄÜÊÇÉèÖÃÖжÏʸÁ¿Èë¿Ú£¬ÆäÓ÷¨Îª£ºvoid setvect(int intr_num, void interrupt(*isr)());³ÌÐòʵÀýÈçÏ£º
#include <stdio.h>
#include <dos.h>
#include <conio.h>
#define INTR 0X1C
void interrupt ( *oldhandler)(void);
int count=0;
void interrupt handler(void)
{
count++;
oldhandler();
}
int main(void)
{
oldhandler = getvect(INTR);
setvect(INTR, handler);
while (count < 20)
printf("count is %d\n",count);
setvect(INTR, oldhandler);
return 0;
}
2. setverifyº¯Êý
setverifyº¯ÊýµÄ¹¦ÄÜÊÇÉèÖÃÑé֤״̬£¬ÆäÓ÷¨Îªvoid setverify(int value);³ÌÐòʵÀý´úÂëÈçÏ£º
#include <stdio.h>
#include <conio.h>
#include <dos.h>
int main(void)
{
int verify_flag;
printf("Enter 0 to set verify flag off\n");
printf("Enter 1 to set verify flag on\n");
verify_flag = getch() - 0;
setverify(verify_flag);
if (getverify())
printf("DOS verify flag is on\n");
else
printf("DOS verify flag is off\n");
return 0;
}
3. setviewportº¯Êý
setviewportº¯ÊýµÄ¹¦ÄÜÊÇΪͼÐÎÊä³öÉèÖõ±Ç°ÊÓ¿Ú, ÆäÓ÷¨Îª£ºvoid far setviewport(int left, int top, int right,int bottom, int clipflag);³ÌÐòʵÀý´úÂëÈçÏ£º
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#define CLIP_ON 1&n
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1. registerbgidriverº¯Êý
registerbgidriverº¯ÊýµÄ¹¦ÄÜÊǵǼÒÑÁ¬½Ó½øÀ´µÄͼÐÎÇý¶¯³ÌÐò´úÂ룬ÆäÓ÷¨Îª£ºint registerbgidriver(void(*driver)(void ......
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1. setallpalletteº¯Êý
setallpalletteº¯ÊýµÄ¹¦ÄÜÊÇ°´Ö¸¶¨·½Ê½¸Ä±äËùÓеĵ÷É«°åÑÕÉ«£¬ÆäÓ÷¨Îª£ºvoid far setallpallette(struct palette, fa ......
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1. setmemº¯Êý
setmemº¯ÊýµÄ¹¦ÄÜÊÇ´æÖµµ½´æ´¢Çø£¬ÆäÓ÷¨Îª£ºvoid setmem(void *addr, int len, char value);³ÌÐòʵÀýÈçÏ£º
#include <stdio.h& ......
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1. settextstyleº¯Êý
settextstyleº¯ÊýµÄ¹¦ÄÜÊÇΪͼÐÎÊä³öÉèÖõ±Ç°µÄÎı¾ÊôÐÔ£¬ÆäÓ÷¨Îª£ºvoid far settextstyle (int font, int direction, char size);³ ......