作者wowtiger (小虎)
看板C_and_CPP
标题Re: [语法] 用c++写闪烁
时间Fri Dec 22 23:37:06 2006
MSVC CRT限用
#include <windows.h>
#include <stdio.h>
char spacebuf[128]
="
";
#define MAXBUFSIZE 4096
int printf (const char *format, ...)
{
int n_chars,count=0;
char output[MAXBUFSIZE];
HANDLE stdout_handle;
va_list argptr;
va_start (argptr, format);
stdout_handle = GetStdHandle (STD_OUTPUT_HANDLE);
n_chars = vsprintf (output, format, argptr);
while(n_chars>count) {
int num;
unsigned long written;
if(*(output+count)==0x1b&&*(output+count+1)=='[') {
int new_attr;
CONSOLE_SCREEN_BUFFER_INFO info;
GetConsoleScreenBufferInfo (stdout_handle, &info);
new_attr = info.wAttributes;
count++;
AGAIN:
count++;
for(num=0;*(output+count)>='0'&&*(output+count)<='9';count++)
num=(num*10)+(*(output+count)-0x30);
if(num>=40) { num-=40;
new_attr=(new_attr&0x8f)+((num&1)<<6)+((num&2)<<4)+((num&4)<<2); }
else if(num>=30) { num-=30;
new_attr=(new_attr&0xf8)+((num&1)<<2)+((num&2) )+((num&4)>>2); }
else switch(num) {
case 5: new_attr|=BACKGROUND_INTENSITY; break;
case 1: new_attr|=FOREGROUND_INTENSITY; break;
case 0: new_attr=(FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
break;
} if (*(output+count)==';') goto AGAIN;
else if (*(output+count)=='m') SetConsoleTextAttribute (stdout_handle,
new_attr);
else if (*(output+count)=='J'&&num==2) {} //cls code...
else if (*(output+count)=='K')
WriteConsole(stdout_handle,spacebuf,info.dwSize.X-info.dwCursorPosition.X-1,&written,0);
else goto NOANSI;
count++;
}
NOANSI:
for(num=0;*(output+count+num)!=0x1b&&*(output+count+num)!=0;num++);
WriteConsole(stdout_handle,output+count,num,&written,0);
count+=num;
}
return n_chars;
}
--
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