Listing All Virtual Smart Cards

[Johannes H]

Hello I got some help here some time ago and now I am hoping to repeat that success with my new problem.
I have this code for creating a virtual smart card:

#include "Tpmvscmgr.h"
//#include "stdafx.h"
#include  "StrSafe.h"
#pragma comment (lib, "Vscmgr.lib")
#include <Windows.h>
#include<comdef.h> 
#include <unknwn.h>
#include <iostream>
#include <sstream>
#include <iostream>
#include <time.h>
#include <string.h>
#include <atlstr.h>
#include <iostream>
#include <fstream>
#include <vector>



HRESULT CoCreateInstanceAsAdmin(HWND hwnd, REFCLSID rclsid, REFIID riid, __out void ** ppv)
{
	BIND_OPTS3 bo;
	WCHAR  wszCLSID[50];
	WCHAR  wszMonikerName[300];

	StringFromGUID2(rclsid, wszCLSID, sizeof(wszCLSID) / sizeof(wszCLSID[0]));
	HRESULT hr = StringCchPrintfW(wszMonikerName, sizeof(wszMonikerName) / sizeof(wszMonikerName[0]), L"Elevation:Administrator!new:%s", wszCLSID);
	if (FAILED(hr))
		return hr;
	memset(&bo, 0, sizeof(bo));
	bo.cbStruct = sizeof(bo);
	bo.hwnd = hwnd;
	bo.dwClassContext = CLSCTX_LOCAL_SERVER;
	return CoGetObject(wszMonikerName, &bo, riid, ppv);
}

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

	std::string p = (argv[1]);
	std::vector<BYTE> pin(p.size());
	for (size_t i = 0; i < p.size(); i++)
	{
		pin[i] = static_cast<BYTE>(p[i]);
	}

	std::string dir = (argv[2]);
	std::vector<BYTE> directory(dir.size());
	for (size_t i = 0; i < dir.size(); i++)
	{
		directory[i] = static_cast<BYTE>(dir[i]);
	}

	std::string directoryStr(reinterpret_cast<const char *>(&directory[0]), directory.size());

	HRESULT hr = S_OK;
	HWND hwnd = NULL;
	ITpmVirtualSmartCardManager *pObj = NULL;
	CoInitialize(NULL);
	hr = CoCreateInstanceAsAdmin(
		hwnd,
		CLSID_TpmVirtualSmartCardManager,
		IID_ITpmVirtualSmartCardManager,
		(void**)&pObj);


	//ITpmVirtualSmartCardManager *pObj = NULL;
	LPWSTR friendly = L"Friendly";
	LPWSTR out = L"";
	BYTE adminPin[] = "123456789";
	DWORD size = sizeof(adminPin);
	BOOL boot;
	 
	hr = pObj->CreateVirtualSmartCard(friendly, TPMVSC_DEFAULT_ADMIN_ALGORITHM_ID, adminPin, 24, NULL, 0, adminPin, size, &pin[0], pin.size(), true, NULL, &out, &boot);
	std::ofstream myfile;
	myfile.open(directoryStr + "CardCreated.txt");//print the card number in a file. Last char in out-return.	
	std::wstring someParam = std::wstring(out);
	char cardNr = someParam.back();
	myfile << cardNr;
	myfile.close();
	return 0;
}

This works now and it returns the number of the created smarcard, but I also need to list all the existing virtual smart cards, with it's "friendly name" + id.
It feels like there should be some way to do that but I cant figure out how.
I know there is something called QueryInterface but not sure how to call that or if it has anything to do with what I want really...
There are ways to do this with uwp-apps but I need to stay with desktop app. Any help would be appreciated!

[Arjay]

Have you tried using WMI? See http://stackoverflow.com/questions/1...system-via-wmi

[Johannes H]

Hello
No had not seen that, I went a different way and did it in c# for now, but might look into that.
Thanks