Windows下Qt读取系统的内存、CPU、GPU等使用信息的示例代码

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#include <QApplication>
​
#include <QtWidgets/QApplication>
#include <QtWidgets/QMainWindow>
#include <QtWidgets/QLabel>
#include <QSysInfo>
#include <QProcess>
#include <QDebug>
​
#include <QDebug>
#include <Windows.h>
​
​
#pragma execution_character_set("utf-8")
​
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
​
​
    QMainWindow window;
     window.resize(400, 300);
​
     QLabel *label = new QLabel(&window);
     label->setAlignment(Qt::AlignCenter);
     label->setWordWrap(true);
     window.setCentralWidget(label);
​
     // 获取系统内存信息
     QString memoryInfo = "Memory Information:\n";
​
     MEMORYSTATUSEX memoryStatus;
         memoryStatus.dwLength = sizeof(memoryStatus);
         if (GlobalMemoryStatusEx(&memoryStatus)) {
             memoryInfo+=QString("Total Physical Memory: %1 %2\n").arg(memoryStatus.ullTotalPhys / (1024 * 1024)).arg("MB");
             memoryInfo+=QString("Available Physical Memory: %1 %2\n").arg(memoryStatus.ullAvailPhys / (1024 * 1024)).arg("MB");
             memoryInfo+=QString("Total Virtual Memory: %1 %2\n").arg(memoryStatus.ullTotalVirtual / (1024 * 1024)).arg("MB");
             memoryInfo+=QString("Available Virtual Memory: %1 %2\n").arg(memoryStatus.ullAvailVirtual / (1024 * 1024)).arg("MB");
         } else {
             memoryInfo+=QString("无法获取内存使用情况信息。\n");
         }
​
     // 获取CPU信息
     QString cpuInfo = "CPU Information:\n";
     QProcess cpuProcess;
     cpuProcess.start("wmic cpu get Name");
     cpuProcess.waitForFinished();
     QString cpuResult = cpuProcess.readAllStandardOutput();
     QString cpuName = cpuResult.split("\n").at(1).trimmed();
     cpuInfo += "Model: " + cpuName + "\n";
​
     // 获取GPU信息
     QString gpuInfo = "GPU Information:\n";
     QProcess gpuProcess;
     gpuProcess.start("wmic path win32_VideoController get Name");
     gpuProcess.waitForFinished();
     QString gpuResult = gpuProcess.readAllStandardOutput();
     QStringList gpuList = gpuResult.split("\n", QString::SkipEmptyParts);
     for (int i = 1; i < gpuList.size(); i++) {
         QString gpuName = gpuList.at(i).trimmed();
         gpuInfo += "GPU " + QString::number(i) + ": " + gpuName + "\n";
     }
​
     // 在标签中显示系统信息
     QString systemInfo = memoryInfo + "\n" + cpuInfo + "\n" + gpuInfo;
     label->setText(systemInfo);
​
     window.show();
​
​
    //Widget w;
    //w.show();
    return a.exec();
}