How to determine that CD-drive is empty?

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#9617

From: Alexander Aliev
Date: Thu, 24 Jun 2004 07:34

28 lines
1543 bytes

Hallo,

could anybody tell how to find out that CD-drive is empty
and suppress system message with "Try again, Continue, Cancel"?

I tried to use DeviceIoControl() with
IOCTL_STORAGE_CHECK_VERIFY, but this function
needs device handle. I use CreateFile() to get the handle.
This function fails and GetLastError() says "Access denied".

Here is a snip of code:

HANDLE hCD = CreateFile(
   "\\\\.\\E:",
    0,
    FILE_SHARE_READ | FILE_SHARE_WRITE,
    NULL,
    OPEN_EXISTING,
    0,
    NULL
   );

I tried the same for A: with the same result.
I have administrative privilege, use OS XP.
What I am doing wrong?

Thank you in advance for any hint.
Alexander

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