c++ - destroyWindow(来自opencv)关闭所有窗口并停止c++程序

我正在用C++写一个实时视频处理程序，希望能够用相同的mjpeg流在颜色，灰度和单色上切换三个窗口。我正在运行所有图像提要，但是，由于我的屏幕很小，我希望能够分别打开和关闭它们。为此，我编写了以下代码，但调用destroyWindow(“[windowname]”);而是停止整个程序。我已经阅读过文档，在文档前加空白无济于事。有人可以告诉我我在做什么错吗？
这是代码(，它处于无限循环中，直到您在下面看到的中断称为):

    imshow("Color", imageColor);
    imshow("Monochrome", imageMonochrome);
    imshow("Grayscale", imageGrayscale);

    int keyPressed = waitKey(0);
    if (keyPressed > 0)
    {
        cout << keyPressed;
        cout << "key was pressed\n";
        // Press C to toggle color window
        if (99 == keyPressed)
        {
            if (colorOpen)
            {
                cout << "Color window closed\n";
                void destroyWindow("Color");
                colorOpen = false;
            }
            if (!colorOpen)
            {
                cout << "Color window opened\n";
                imshow("Color", imageColor);
                colorOpen = true;
            }
        }

        // Press M to toggle monochrome window
        if (109 == keyPressed)
        {
            if (monochromeOpen)
            {
                cout << "Monochrome window closed\n";
                void destroyWindow("Monochrome");
                monochromeOpen = false;
            }
            if (!monochromeOpen)
            {
                cout << "Monochrome window opened\n";
                imshow("Monochrome", imagebw);
                monochromeOpen = true;
            }
        }

        // Press G to toggle grayscale window
        if (103 == keyPressed)
        {
            if (grayscaleOpen)
            {
                cout << "Grayscale window closed\n";
                void destroyWindow("Grayscale");
                grayscaleOpen = false;
            }
            if (!grayscaleOpen)
            {
                cout << "Grayscale window opened\n";
                imshow("Grayscale", image);
                grayscaleOpen = true;
            }
        }
        // Break out of infinite loop when [ESC] is pressed:
        if (27 == keyPressed)
        {
            cout << "Escape Pressed\n";
            break;
        }
    }

最佳答案

您粘贴的代码在调用destroyWindow后终止(通过结束main的结尾)。如果那不是您想发生的事情，请在调用destroyWindow之后编写编写其他功能的代码。也许您想要循环？

关于c++ - destroyWindow(来自opencv)关闭所有窗口并停止c++程序，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/21807826/