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如何使用纯 c 在 Windows 下的控制台窗口中检查 ymax 和 xmax？

linux有这段代码：

#include <stdio.h>
#include <sys/ioctl.h>
int main (void)
{
    struct winsize max;
    ioctl(0, TIOCGWINSZ , &max);
    printf ("lines %d\n", max.ws_row);
    printf ("columns %d\n", max.ws_col);
}

现在我想知道如何为 Windows 做同样的事情。我试过winioctl.h了，但它没有定义struct winsize或任何其他具有相似名称的东西。

有小费吗？谢谢。

PS。在 linux 中，您还可以使用getenv("LINES");. windows下有类似的变量吗？

聚苯乙烯。此外，我认为总是有ncurses.h两个系统都可以使用，但由于与我拥有的其他库发生冲突，我正在避免它。

购买力平价。这个问题在这里Getting terminal width in C? 有很多技巧，所以不需要重复。

4

3 回答 3

44

This prints the size of the console, not the buffer:

#include <windows.h>

int main(int argc, char *argv[]) {
    CONSOLE_SCREEN_BUFFER_INFO csbi;
    int columns, rows;

    GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
    columns = csbi.srWindow.Right - csbi.srWindow.Left + 1;
    rows = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;

    printf("columns: %d\n", columns);
    printf("rows: %d\n", rows);
    return 0;
}

This code works because srWindow "contains the console screen buffer coordinates of the upper-left and lower-right corners of the display window", and the SMALL_RECT structure "specify the rows and columns of screen-buffer character cells" according to MSDN. I subtracted the parallel sides to get the size of the console window. Since I got 1 less than the actual value, I added one.

于 2012-09-28T15:14:43.077 回答
7

（部分回答）

这段代码：

CONSOLE_SCREEN_BUFFER_INFO csbi;
int ret;
ret = GetConsoleScreenBufferInfo(GetStdHandle( STD_OUTPUT_HANDLE ),&csbi);
if(ret)
{
    printf("Console Buffer Width: %d\n", csbi.dwSize.X);
    printf("Console Buffer Height: %d\n", csbi.dwSize.Y);
}

Gives the size of the buffer. The only problem is that dwSize.Y is not really the size of the screen (300 here instead of 25 lines). But dwSize.X matches the column's number. Needs only windows.h to work.

于 2011-07-25T12:06:25.690 回答
4

The below two functions will get the window size somewhat more directly.

Note that I found, using gcc, that neither this approach nor GetConsoleScreenBufferInfo works if the program is piped. That is somewhat of a pain as for/f then does not work either. Apparently the screen data is not available in a pipe.

Um, the above remark is of course enormously stupid. ;) It is STDOUT that is not the screen in a pipe! That does mean I prefer using STD_ERROR_HANDLE above STD_OUTPUT_HANDLE. I am far less likely to direct standard error away from the screen than standard output.

typedef struct _CONSOLE_FONT_INFO {
  DWORD nFont;
  COORD dwFontSize;
} CONSOLE_FONT_INFO, *PCONSOLE_FONT_INFO;

BOOL WINAPI GetCurrentConsoleFont(
   HANDLE             hConsoleOutput,
   BOOL               bMaximumWindow,
   PCONSOLE_FONT_INFO lpConsoleCurrentFont
);

/* Get the window width */
int getww_(void)
{
    CONSOLE_FONT_INFO info;
    GetCurrentConsoleFont(GetStdHandle(STD_OUTPUT_HANDLE), FALSE, &info);
    return info.dwFontSize.X;
}

/* Get the window height */
int getwh_(void)
{
    CONSOLE_FONT_INFO info;
    GetCurrentConsoleFont(GetStdHandle(STD_OUTPUT_HANDLE), FALSE, &info);
    return info.dwFontSize.Y;
}
于 2018-05-17T15:44:40.010 回答