[C#] Calling An Office DLL Help

Code:

            byte[] descBuffer = new byte[4];
            SLDATATYPE slDataType = SLDATATYPE.SL_DATA_DWORD;
            NativeMethods.SPPGetApplicationInformation(sppHandle, ref windowsAppID, "RemainingRearmCount", ref slDataType, ref descSize, ref descBuffer);

            // Close Handle to Microsoft Windows Software Licensing Service
            NativeMethods.SPPClose(sppHandle);
            NativeMethods.FreeLibrary(sppDllHandle);

            // Return Rearm Count
            return descBuffer[0];

You return the least significant byte from descBuffer.

descSize && descBuffer are both output.
SLGetApplicationInformation allocates descBuffer and sets descSize.

 

Yes like in my c++ source:

Code:

    UINT descSize;
    PBYTE descBuffer;
    if(_SLGetApplicationInformation(hslcOSPP,  (SLID*)Office2013GUID, L"RemainingRearmCount", NULL, &descSize,  &descBuffer) != S_OK)
        wprintf_s(L"osppc.SLGetApplicationInformation\n\n");
    else{
        StringCbPrintf(msg, MAX_MSG_SIZE, L"RemainingRearmCount (Office 2013): %d\n\n", *(DWORD*)descBuffer);
        wprintf_s(msg);
        LocalFree(descBuffer);
    }