windows C++ 根據進程名獲取進程id

DWORD GetProcessPID(QString pProcName)
{
	TRACET();

	if (pProcName.isEmpty())
		return -1;

	DWORD arrProcessPids[1024] = { 0 }, cbNeededSize = 0;
	if (!EnumProcesses(arrProcessPids, sizeof(arrProcessPids), &cbNeededSize)) return -1;

	for (DWORD i = 0, nProcessCount = cbNeededSize / sizeof(DWORD); i < nProcessCount; ++i)         
    {
		HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, arrProcessPids[i]);
		if (NULL == hProc) continue;

		HMODULE hModule = NULL;
		wchar_t szModuleName[MAX_PATH] = L"UnknownProcess";
		if (!EnumProcessModules(hProc, &hModule, sizeof(hModule), &cbNeededSize)) { CloseHandle(hProc); continue; }
		GetModuleBaseName(hProc, hModule, szModuleName, sizeof(szModuleName));
		CloseHandle(hProc);
		if (QString::fromWCharArray(szModuleName) == pProcName) {
			return arrProcessPids[i];
		}
	}
	return (DWORD)(-1);
}