IOCTL_STORAGE_GET_MEDIA_TYPES - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// ntddstor.h

// CTL_CODE(0x002d, 0x300, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_STORAGE_GET_MEDIA_TYPES 0x002D0C00
View the official Windows Driver Kit DDI reference
// winioctl.h

// CTL_CODE(0x002d, 0x300, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_STORAGE_GET_MEDIA_TYPES 0x002D0C00
View the official Win32 API reference

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Windows Driver Kit DDI reference (ni-ntddstor-ioctl_storage_get_media_types)

IOCTL_STORAGE_GET_MEDIA_TYPES IOCTL

Description

Returns information about the geometry of floppy drives.

Parameters

Major code

Input buffer

None.

Input buffer length

None.

Output buffer

The driver returns an array of DISK_GEOMETRY records for the types of media it supports in the buffer at Irp->AssociatedIrp.SystemBuffer.

Output buffer length

Parameters.DeviceIoControl.OutputBufferLength in the I/O stack location of the IRP indicates the size, in bytes, of the buffer, which must be at least (NumberOfSupportedMediaTypes * sizeof(DISK_GEOMETRY)).

Input/output buffer

Input/output buffer length

Status block

The Information field is set to the size, in bytes, of the returned data. The Status field can be set to STATUS_SUCCESS, or possibly to STATUS_INVALID_DEVICE_REQUEST, STATUS_BUFFER_TOO_SMALL, or STATUS_BUFFER_OVERFLOW.

See also

DISK_GEOMETRY

View the official Windows Driver Kit DDI reference

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Win32 API reference (ni-winioctl-ioctl_storage_get_media_types)

IOCTL_STORAGE_GET_MEDIA_TYPES IOCTL

Description

Retrieves the geometry information for the device.

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

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

Parameters

Input buffer

Input buffer length

Output buffer

Output buffer length

Input/output buffer

Input/output buffer length

Status block

Irp->IoStatus.Status is set to STATUS_SUCCESS if the request is successful.

Otherwise, Status to the appropriate error condition as a NTSTATUS code.

For more information, see NTSTATUS Values.

Remarks

This device I/O control operation is for all class drivers, as well as non-SCSI hard drives and floppy disk devices.

See also

View the official Win32 API reference

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