C语言函数大全(w开头)

文章作者 100test 发表时间 2007:03:10 17:25:22
来源 100Test.Com百考试题网

函数名: wherex
功 能: 返回窗口内水平光标位置
用 法: int wherex(void).
程序例:
#include
int main(void)
{
clrscr().
gotoxy(10,10).
cprintf("Current location is X: %d Y: %d\r\n", wherex(), wherey()).
getch().
return 0.
}

函数名: wherey
功 能: 返回窗口内垂直光标位置
用 法: int wherey(void).
程序例:
#include
int main(void)
{
clrscr().
gotoxy(10,10).
cprintf("Current location is X: %d Y: %d\r\n", wherex(), wherey()).
getch().
return 0.
}



函数名: window
功 能: 定义活动文本模式窗口
用 法: void window(int left, int top, int right, int bottom).
程序例:
#include
int main(void)
{
window(10,10,40,11).
textcolor(BLACK).
textbackground(WHITE).
cprintf("This is a test\r\n").
return 0.
}

函数名: write
功 能: 写到一文件中
用 法: int write(int handel, void *buf, int nbyte).
程序例:
#include
#include
#include
#include
#include
#include
int main(void)
{
int handle.
char string[40].
int length, res.
/*
Create a file named "TEST.$$$" in the current directory and write
a string to it. If "TEST.$$$" already exists, it will be overwritten.
*/
if ((handle = open("TEST.$$$", O_WRONLY | O_CREAT | O_TRUNC,
S_IREAD | S_IWRITE)) == -1)
{
printf("Error opening file.\n").
exit(1).
}
strcpy(string, "Hello, world!\n").
length = strlen(string).
if ((res = write(handle, string, length)) != length)
{
printf("Error writing to the file.\n").
exit(1).
}
printf("Wrote %d bytes to the file.\n", res).
close(handle).
return 0.
}
struct xfcb {
char xfcb_flag. /* Contains 0xff to indicate xfcb */
char xfcb_resv[5]. /* Reserved for DOS */
char xfcb_attr. /* Search attribute */
struct fcb xfcb_fcb. /* The standard fcb */
}.