ejecting multiple cd-rom drives

hi!

i know that this code ejects a 1st cd-rom drive :

mciSendString("open cdaudio alias cd1", 0, 0, 0);
mciSendString("set cd1 door open wait", 0, 0, 0);

but how can i eject a 2nd and a 3rd cd-rom drive?
i tried this code and failed:

mciSendString("open cdaudio1 alias cd2", 0, 0, 0);
mciSendString("set cd2 door open wait", 0, 0, 0);
mciSendString("open cdaudio2 alias cd3", 0, 0, 0);
mciSendString("set cd3 door open wait", 0, 0, 0);

please help.

Code:

---

#include <windows.h>
#include <stdio.h>
#include <tchar.h>

#if defined(_MSC_VER)
#  pragma comment(lib, "winmm.lib")
#endif

void EjectAll(void)
{
        TCHAR command[1000];
        TCHAR result[1000];
        UINT  count;
        UINT  i;

        /* Get the number of cdaudio devices available. */
        mciSendString(TEXT("sysinfo cdaudio quantity"), result, 1000, NULL);
        count = _tcstoul(result, NULL, 10);

        for (i = 1; i <= count; i++)
        {
                /* Get the name of this device. */
                wsprintf(command, TEXT("sysinfo cdaudio name %u"), i);
                mciSendString(command, result, 1000, NULL);

                /* Open this device. */
                wsprintf(command, TEXT("open %.500s alias cd1"), result);
                mciSendString(command, NULL, 0, NULL);

                /* Eject this device. */
                mciSendString(TEXT("set cd1 door open wait"), NULL, 0, NULL);

                /* Close this device. */
                mciSendString(TEXT("close cd1"), NULL, 0, NULL);
        }
}

int main(void)
{
        EjectAll();
        getchar();
        return 0;
}

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i'll try that. Thanx a bunch.