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IOCTL_DISK_IS_WRITABLE IOCTL (winioctl.h)

Determines whether the specified disk is writable.

To perform this operation, call the DeviceIoControl function with the following parameters.

BOOL DeviceIoControl(
 (HANDLE) hDevice, // handle to device
 IOCTL_DISK_IS_WRITABLE, // dwIoControlCode
 NULL, // lpInBuffer
 0, // nInBufferSize
 NULL, // lpOutBuffer
 0, // nOutBufferSize
 (LPDWORD) lpBytesReturned, // number of bytes returned
 (LPOVERLAPPED) lpOverlapped // OVERLAPPED structure
);

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Header winioctl.h (include Windows.h)

See also

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