qt中使用Windows API函数CreateProcess启动msu文件

在Qt中使用Windows API函数CreateProcess启动msu文件的步骤如下：

1. 在Qt项目中包含Windows.h头文件。

#include <Windows.h>

2. 定义CreateProcess函数需要的参数，包括待启动的msu文件路径和命令行参数。

LPTSTR applicationName = L"C:\\Windows\\System32\\wusa.exe"; // msu文件启动程序路径
LPTSTR commandLine = L"C:\\temp\\update.msu /quiet /norestart"; // msu文件路径和命令行参数
LPSECURITY_ATTRIBUTES processAttributes = NULL;
LPSECURITY_ATTRIBUTES threadAttributes = NULL;
BOOL inheritHandles = FALSE;
DWORD creationFlags = 0;
LPVOID environment = NULL;
LPTSTR currentDirectory = NULL;
LPSTARTUPINFO startupInfo = new STARTUPINFO;
LPPROCESS_INFORMATION processInformation = new PROCESS_INFORMATION;
ZeroMemory(startupInfo, sizeof(STARTUPINFO));
ZeroMemory(processInformation, sizeof(PROCESS_INFORMATION));
startupInfo->cb = sizeof(STARTUPINFO);

3. 调用CreateProcess函数启动msu文件。

BOOL success = CreateProcess(applicationName, commandLine, processAttributes, threadAttributes, inheritHandles, creationFlags, environment, currentDirectory, startupInfo, processInformation);
if (success) {
    qDebug() << "Process started";
} else {
    qDebug() << "Process failed to start";
}

完整代码如下：

#include <QCoreApplication>
#include <QDebug>
#include <Windows.h>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    // Define CreateProcess parameters
    LPTSTR applicationName = L"C:\\Windows\\System32\\wusa.exe"; // msu file launch program path
    LPTSTR commandLine = L"C:\\temp\\update.msu /quiet /norestart"; // msu file path and command line parameters
    LPSECURITY_ATTRIBUTES processAttributes = NULL;
    LPSECURITY_ATTRIBUTES threadAttributes = NULL;
    BOOL inheritHandles = FALSE;
    DWORD creationFlags = 0;
    LPVOID environment = NULL;
    LPTSTR currentDirectory = NULL;
    LPSTARTUPINFO startupInfo = new STARTUPINFO;
    LPPROCESS_INFORMATION processInformation = new PROCESS_INFORMATION;
    ZeroMemory(startupInfo, sizeof(STARTUPINFO));
    ZeroMemory(processInformation, sizeof(PROCESS_INFORMATION));
    startupInfo->cb = sizeof(STARTUPINFO);

    // Start process
    BOOL success = CreateProcess(applicationName, commandLine, processAttributes, threadAttributes, inheritHandles, creationFlags, environment, currentDirectory, startupInfo, processInformation);
    if (success) {
        qDebug() << "Process started";
    } else {
        qDebug() << "Process failed to start";
    }

    // Cleanup
    delete startupInfo;
    CloseHandle(processInformation->hProcess);
    CloseHandle(processInformation->hThread);
    delete processInformation;

    return a.exec();
}