如何删除控制台窗口中的滚动条 C++

Question

我一直在检查一些用 C 编写的 Rogue 类游戏（Larn、Rogue 等）和 C++，我注意到它们的控制台窗口右侧没有滚动条。

我怎样才能完成同样的功能？

Answer 1

要删除滚动条，只需将屏幕缓冲区高度设置为与窗口高度相同的大小：

#include <windows.h>
#include <iostream>
using namespace std;

int main()
{                
    // get handle to the console window
    HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);

    // retrieve screen buffer info
    CONSOLE_SCREEN_BUFFER_INFO scrBufferInfo;
    GetConsoleScreenBufferInfo(hOut, &scrBufferInfo);

    // current window size
    short winWidth = scrBufferInfo.srWindow.Right - scrBufferInfo.srWindow.Left + 1;
    short winHeight = scrBufferInfo.srWindow.Bottom - scrBufferInfo.srWindow.Top + 1;

    // current screen buffer size
    short scrBufferWidth = scrBufferInfo.dwSize.X;
    short scrBufferHeight = scrBufferInfo.dwSize.Y;        

    // to remove the scrollbar, make sure the window height matches the screen buffer height
    COORD newSize;
    newSize.X = scrBufferWidth;
    newSize.Y = winHeight;

    // set the new screen buffer dimensions
    int Status = SetConsoleScreenBufferSize(hOut, newSize);
    if (Status == 0)
    {
        cout << "SetConsoleScreenBufferSize() failed! Reason : " << GetLastError() << endl;
        exit(Status);
    }

    // print the current screen buffer dimensions
    GetConsoleScreenBufferInfo(hOut, &scrBufferInfo);
    cout << "Screen Buffer Size : " << scrBufferInfo.dwSize.X << " x " << scrBufferInfo.dwSize.Y << endl;

    return 0;
}

Answer 2

您需要使控制台屏幕缓冲区的大小与控制台窗口的大小相同。使用 GetConsoleScreenBufferInfo、srWindow 成员获取窗口大小。使用 SetConsoleScreenBufferSize() 设置缓冲区大小。

Answer 3

使用 #include，您可以简单地执行

ShowScrollBar(GetConsoleWindow(), SB_VERT, 0);

指定使用不同参数隐藏哪个滚动条。

Answer 4

要从控制台中删除滚动条，我们可以使控制台屏幕缓冲区的大小与控制台窗口的大小相同。这可以按如下方式完成：

#include <Windows.h>
#include <iostream>

int main() {
    CONSOLE_SCREEN_BUFFER_INFO screenBufferInfo; 

    // Get console handle and get screen buffer information from that handle.
    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
    GetConsoleScreenBufferInfo(hConsole, &screenBufferInfo);

    // Get rid of the scrollbar by setting the screen buffer size the same as 
    // the console window size.
    COORD new_screen_buffer_size;

    // screenBufferInfo.srWindow allows us to obtain the width and height info 
    // of the visible console in character cells.
    // That visible portion is what we want to set the screen buffer to, so that 
    // no scroll bars are needed to view the entire buffer.
    new_screen_buffer_size.X = screenBufferInfo.srWindow.Right - 
    screenBufferInfo.srWindow.Left + 1; // Columns
    new_screen_buffer_size.Y = screenBufferInfo.srWindow.Bottom - 
    screenBufferInfo.srWindow.Top + 1; // Rows

    // Set new buffer size
    SetConsoleScreenBufferSize(hConsole, new_screen_buffer_size);

    std::cout << "There are no scrollbars in this console!" << std::endl;

    return 0;
}