?? fw.htm
字號:
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<P>函數名: wherex
<BR>功 能: 返回窗口內水平光標位置
<BR>用 法: int wherex(void);
<BR>程序例:
<P>#include <conio.h>
<P>int main(void)
<BR>{
<BR> clrscr();
<BR> gotoxy(10,10);
<BR> cprintf("Current location is X: %d Y: %d\r\n", wherex(),
wherey());
<BR> getch();
<P> return 0;
<BR>}
<BR>
<BR>
<BR>
<P>函數名: wherey
<BR>功 能: 返回窗口內垂直光標位置
<BR>用 法: int wherey(void);
<BR>程序例:
<P>#include <conio.h>
<P>int main(void)
<BR>{
<BR> clrscr();
<BR> gotoxy(10,10);
<BR> cprintf("Current location is X: %d Y: %d\r\n", wherex(),
wherey());
<BR> getch();
<P> return 0;
<BR>}
<BR>
<BR>
<BR>
<P>函數名: window
<BR>功 能: 定義活動文本模式窗口
<BR>用 法: void window(int left, int top, int right, int bottom);
<BR>程序例:
<P>#include <conio.h>
<P>int main(void)
<BR>{
<P> window(10,10,40,11);
<BR> textcolor(BLACK);
<BR> textbackground(WHITE);
<BR> cprintf("This is a test\r\n");
<P> return 0;
<BR>}
<BR>
<BR>
<BR>
<P>函數名: write
<BR>功 能: 寫到一文件中
<BR>用 法: int write(int handel, void *buf, int nbyte);
<BR>程序例:
<P>#include <stdio.h>
<BR>#include <stdlib.h>
<BR>#include <fcntl.h>
<BR>#include <sys\stat.h>
<BR>#include <io.h>
<BR>#include <string.h>
<P>int main(void)
<BR>{
<BR> int handle;
<BR> char string[40];
<BR> int length, res;
<P> /*
<BR> Create a file named "TEST.$$$" in the current directory
and write
<BR> a string to it. If "TEST.$$$" already exists,
it will be overwritten.
<BR> */
<P> if ((handle = open("TEST.$$$", O_WRONLY | O_CREAT | O_TRUNC,
<BR>
S_IREAD | S_IWRITE)) == -1)
<BR> {
<BR> printf("Error opening file.\n");
<BR> exit(1);
<BR> }
<P> strcpy(string, "Hello, world!\n");
<BR> length = strlen(string);
<P> if ((res = write(handle, string, length)) != length)
<BR> {
<BR> printf("Error writing to the file.\n");
<BR> exit(1);
<BR> }
<BR> printf("Wrote %d bytes to the file.\n", res);
<P> close(handle);
<BR> return 0;
<BR>}
<BR>
<P>
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