getting external media type - c++

Question

i would like to find a way detecting the type of the media in my optical drive (e.g. DVD+R, DVD-R, DVD-RW, CD+R, etc.) using a simple function in C++ on windows.
The function should not require Admin privilege.
EDIT
I implemented the following code:
#include <windows.h>
#include <winioctl.h>
#include <stdio.h>
#include <iostream>
#include <sstream>
#include <imapi2.h>
#include <imapi2fs.h>
#include <imapi2error.h>
#include <imapi2fserror.h>
int main(int argc, char *argv[])
{
IDiscFormat2Data* discFormatData = NULL;
HRESULT hr;
CoInitialize ( NULL );
hr = CoCreateInstance( __uuidof(MsftDiscFormat2Data),
NULL,
CLSCTX_ALL,
__uuidof(IDiscFormat2Data),
(void**)&discFormatData);
if ( SUCCEEDED(hr) )
{
IMAPI_MEDIA_PHYSICAL_TYPE mediaType = IMAPI_MEDIA_TYPE_UNKNOWN;
hr = discFormatData->get_CurrentPhysicalMediaType(&mediaType);
if ( SUCCEEDED(hr) )
{
std::cout << "MediaPhysicalType: " << mediaType << std::endl;
}
else
{
std::stringstream str;
str << "get_CurrentPhysicalMediaType() failed with the error: 0x";
str << std::hex << hr << ".";
std::cout << str.str() << std::endl;
}
// Release the interface.
// Tell the COM object that we're done with it.
discFormatData->Release();
}
else
{
std::stringstream str;
str << "CoCreateInstance() failed with the error: 0x" << std::hex << hr;
std::cout << str.str() << std::endl;
}
cin.get();
return 0;
}
at the moment my problem is that i get the following error: E_IMAPI_RECORDER_REQUIRED which means
"The request requires a current disc recorder to be selected."
Assuming i have at least two optical drivers, how can i differ between them?
Any ideas?

Answer 1

On Windows 2000 and later, you can use IOCTL_CDROM_GET_CONFIGURATION with the SCSI_GET_CONFIGURATION_REQUEST_TYPE_CURRENT flag to query an optical device for its current profile, which will tell you which type of disc (CD, DVD+-R/W, HDDVD, BluRay, etc) has been inserted, if any. On earlier versions, you will have to manually send SCSI MMC commands directly to the device to query the same info.