2023年8月1日发(作者：)

Qt：Windows编程—Qt实现进程管理前⾔继续学window编程，学呀学呀 学⽆⽌境，学到Windows进程相关API了。利⽤相关的API使⽤Qt写界⾯实现了⼀个简单的进程管理。主要⽤到 进程的创建、进程的枚举、线程的枚举、DLL的枚举、进程提权等功能。相关API的介绍可以看界⾯先看看qt写的界⾯吧。代码创建进程// 创建进程void Widget::on_pushButton_6_clicked(){ QFileDialog *fileDialog = new QFileDialog(this); fileDialog->setWindowTitle(tr("打开可执⾏⽂件")); fileDialog->setDirectory("."); fileDialog->setNameFilter(tr("可执⾏⽂件(*.exe)")); fileDialog->setViewMode(QFileDialog::Detail); QStringList fileNames; if(fileDialog->exec()) { QString fileName; fileNames = fileDialog->selectedFiles(); } QString exePath = fileNames[0]; qDebug() << exePath; const char* path = tring().c_str(); STARTUPINFOA startInfo = {0}; = sizeof(startInfo); PROCESS_INFORMATION processInfo = {0}; // startInfo 和 processInfo必须初始化 BOOL ret = CreateProcessA(path,NULL,NULL,NULL,false,NULL ,NULL,NULL,&startInfo,&processInfo); if( ret ) { qDebug() << "processId = " << essId << ",threadId = "<< adId ; CloseHandle( ss ); CloseHandle( d ); emit refreshProcTab(); }else { qDebug() << "创建进程失败" ; }}结束进程// 结束进程void Widget::on_pushButton_clicked(){ int row = ui->processTab->currentRow(); uint pid = getPid(); HANDLE hProc = OpenProcess(PROCESS_ALL_ACCESS,FALSE,pid); // 获取进程句柄 if( hProc == NULL) { qDebug() << "OpenProcess error "; return; } BOOL ret = TerminateProcess(hProc,0); // 强制进程退出 if(ret == FALSE) { qDebug() << "TerminateProcess error "; return ; } ui->processTab->removeRow(row); CloseHandle(hProc);}停⽌进程// 停⽌进程，就是将进程中的所有线程挂起void Widget::on_pushButton_2_clicked(){ uint pid = getPid(); HANDLE snapHandele = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD,NULL); if( INVALID_HANDLE_VALUE == snapHandele) { qDebug() << "CreateToolhelp32Snapshot error" ; return; } THREADENTRY32 entry = {0}; = sizeof(entry); BOOL ret = Thread32First(snapHandele,&entry); while( ret ) { if( 32OwnerProcessID == pid) { HANDLE tHandle = OpenThread(THREAD_ALL_ACCESS,FALSE,32ThreadID); if( tHandle == NULL) { qDebug() << "OpenThread error，threadId = " << 32ThreadID; } else { DWORD ret = SuspendThread(tHandle); if( ret == -1) { qDebug() << "SuspendThread error"; }else { qDebug() << "SuspendThread success"; } CloseHandle(tHandle); } } ret = Thread32Next(snapHandele,&entry); } CloseHandle(snapHandele);}恢复进程// 恢复进程，就是将进程中的所有线程恢复void Widget::on_pushButton_3_clicked(){ uint pid = getPid(); HANDLE snapHandele = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD,NULL); if( INVALID_HANDLE_VALUE == snapHandele) { qDebug() << "CreateToolhelp32Snapshot error" ; return; } THREADENTRY32 entry = {0}; = sizeof(entry); BOOL ret = Thread32First(snapHandele,&entry); while( ret ) { if( 32OwnerProcessID == pid) { HANDLE tHandle = OpenThread(THREAD_ALL_ACCESS,FALSE,32ThreadID); if( tHandle == NULL) { qDebug() << "OpenThread error，threadId = " << 32ThreadID; } else { DWORD ret = ResumeThread(tHandle); if( ret == -1) { qDebug() << "SuspendThread error"; }else { qDebug() << "ResumeThread success"; } CloseHandle(tHandle); } } ret = Thread32Next(snapHandele,&entry); }}查看DLL// 查看进程的DLL// 查看某些系统进程的DLL是不⾏的，调⽤CreateToolhelp32Snapshot直接失败// 必须提权，提权操作在upRole函数中void Widget::on_pushButton_4_clicked(){ // 清空表格 int rowCount = ui->dllTab->rowCount(); for( int i = 0; i < rowCount; i++ ) { ui->dllTab->removeRow(0); } uint pid = getPid(); HANDLE snapHandele = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE ,pid); if( INVALID_HANDLE_VALUE == snapHandele) { qDebug() << "CreateToolhelp32Snapshot error" ; return; } MODULEENTRY32 entry = {0}; = sizeof(entry);// 长度必须赋值 BOOL ret = Module32First(snapHandele,&entry); int i = 0; while (ret) { QString dllFile = QString::fromWCharArray(le); QString dllPath = QString::fromWCharArray(ath); ui->dllTab->insertRow(i); ui->dllTab->setItem(i,0,new QTableWidgetItem(dllFile)); ui->dllTab->setItem(i,1,new QTableWidgetItem(QString("%1").arg(dllPath))); i++; ret = Module32Next(snapHandele,&entry); } CloseHandle(snapHandele);}完整⼯程⼯程代码在这⾥。或者这⾥。