windows evplayer 如何检测系统中正在运行的进程

Windows EvPlayer 可以使用 Windows API 中的 EnumProcesses 函数来获取系统中正在运行的进程列表。具体实现可以参考以下代码：

#include <windows.h>
#include <tlhelp32.h>

void ListProcesses()
{
    DWORD aProcesses[1024], cbNeeded, cProcesses;
    if (!EnumProcesses(aProcesses, sizeof(aProcesses), &cbNeeded))
        return;

    cProcesses = cbNeeded / sizeof(DWORD);
    for (DWORD i = 0; i < cProcesses; i++)
    {
        if (aProcesses[i] != 0)
        {
            HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, aProcesses[i]);
            if (hProcess != NULL)
            {
                TCHAR szProcessName[MAX_PATH] = TEXT("<unknown>");
                HMODULE hMod;
                DWORD cbNeeded;

                if (EnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded))
                {
                    GetModuleBaseName(hProcess, hMod, szProcessName, sizeof(szProcessName) / sizeof(TCHAR));
                }

                _tprintf(TEXT("%s (PID: %u)\n"), szProcessName, aProcesses[i]);

                CloseHandle(hProcess);
            }
        }
    }
}

这段代码可以列出系统中所有正在运行的进程及其进程 ID。