Vfrdtyky

I need put multiple values ​​in a single attribute of a struct, the attribute that will receive the values ​​is LPSTR, I was trying to pass all this as a vector, compile, but it does not work as I would like.

My struct:

typedef struct _wfs_pin_caps

{

WORD                wClass;

WORD                fwType;

............More...............

BOOL                bIDConnect;

WORD                fwIDKey;

WORD                fwValidationAlgorithms;

WORD                fwKeyCheckModes;

LPSTR               lpszExtra; //This attribute must receive more than one value 

} WFSPINCAPS, * LPWFSPINCAPS;

As I'm trying to do:

HRESULT WINAPI WFPGetInfo(HSERVICE hService, DWORD dwCategory, LPVOID   lpQueryDetails, DWORD dwTimeOut, HWND hWnd, REQUESTID ReqID) {



    ...



    result = WFMAllocateMore(sizeof(WFSPINCAPS), lpWFSResult, &lpWFSResult->lpBuffer);



    ...



    //This Values

    vector<LPSTR> Tokens;

        Tokens[1] = (LPSTR)"Value1";

        Tokens[2] = (LPSTR)"Value2";

        Tokens[3] = (LPSTR)"Value4";

        Tokens[4] = (LPSTR)"Value5";



        PinCapabilities.lpszExtra = (LPSTR)&Tokens; //Pass HERE



    memcpy(lpWFSResult->lpBuffer,&PinCapabilities,sizeof(WFSPINCAPS));



    ... 

return WFS_SUCCESS;

Your question is very unclear, but if I understand it, the problem is that you are setting lpszExtra to a local vector Tokens (stored in the stack) and that will be destroyed at the end of that function.

One way would be creating the vector in the heap like this:

// Create a new vector in the heap of 5 elements (0..4)

vector<LPSTR> &Tokens = *new vector<LPSTR>(5); 

Tokens[1] = (LPSTR) "Value1";

Tokens[2] = (LPSTR) "Value2";

Tokens[3] = (LPSTR) "Value4";

Tokens[4] = (LPSTR) "Value5";



PinCapabilities.lpszExtra = (LPSTR) &Tokens; //Pass HERE



// Assuming that lpBuffer has room for a WFSPINCAPS structure

memcpy(lpWFSResult->lpBuffer, &PinCapabilities, sizeof(WFSPINCAPS));

Now the ((LPWFSPINCAPS)lpWFSResult->lpBuffer)->lpszExtra contains a valid pointer to a vector that can be used in any other function like this:

LPWFSPINCAPS pPinCapabilities = (LPWFSPINCAPS) lpWFSResult->lpBuffer;

vector<LPSTR> &Tokens = *(vector<LPSTR> *) pPinCapabilities->lpszExtra;

LPSTR str = Tokens[3]; // Will get "Value4"

But don't forget that in some point you will have to release the vector's memory:

LPWFSPINCAPS pPinCapabilities2 = (LPWFSPINCAPS) lpWFSResult->lpBuffer;

delete (vector<LPSTR> *) pPinCapabilities2->lpszExtra;

And please next time try to create a Minimal, Complete, and Verifiable example to help us to help you.