枚举windows串口(1)

参考文档
http://www.cppblog.com/franksunny/archive/2006/10/10/13551.aspx
https://msdn.microsoft.com/en-us/library/windows/desktop/dd162687(v=vs.85).aspx

#include <windows.h>#include <string>#include <iostream>#include <vector>int main() {    std::vector<std::wstring> strSerialList;    DWORD cbNeeded = 0;  // bytes received or required    DWORD cReturned = 0;  // number of ports received    // 获取端口信息，能得到端口信息的大小 pcbNeeded    EnumPorts(NULL, 2, 0, 0, &cbNeeded, &cReturned);    // 枚举端口，能得到端口的具体信息 pBite 以及端口的的个数 pcReturned    PORT_INFO_2 *pPort = (PORT_INFO_2*)malloc(cbNeeded);    EnumPorts(NULL, 2, (LPBYTE)pPort, cbNeeded, &cbNeeded, &cReturned);    for (int i = 0; i < cReturned; i++) {        std::wstring str = pPort[i].pPortName;        if (str.substr(0, 3) == L"COM") {            strSerialList.push_back(str);            std::wcout << str << std::endl;        }    }    free(pPort);}