API -> DeviceIoControl [ Library : kernel32.dll, Category : Various ] [C#, VB, VB.net]

DeviceIoControl

Library : kernel32.dll Category : Various

Api Example(s)
GetDriveTypeEx - Detect drive type, including CD or DVD driver
This is a link to different site Using DeviceIoControl to Obtain Physical Drive Information
Locking Removable Media Devices Using DeviceIoControl
Checking for Media Availability Using DeviceIoControl
This is a link to different site Loading and Ejecting Removable Media Using DeviceIoControl
How to perform Direct Read/Write to disk (low level I/O)
Taking advantage of NTFS inbuilt compression using APIs (Only for NTFS file system)

API Description :

The DeviceIoControl function sends a control code directly to a specified device driver, causing the corresponding device to perform the corresponding operation.

VB Declaration :

Show Multiline Public Private

Declare Function DeviceIoControl Lib "kernel32" (ByVal hDevice As Long, ByVal dwIoControlCode As Long, lpInBuffer As Any, ByVal nInBufferSize As Long, lpOutBuffer As Any, ByVal nOutBufferSize As Long, lpBytesReturned As Long, lpOverlapped As Any) As Long

Parameters :

· hDevice 
[in] Handle to the device on which to perform the operation, typically a volume, directory, file, or alternate stream. To retrieve a device handle, use the function. 

· dwIoControlCode 
[in] Specifies the control code for the operation. Th

Return :

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

OS Requirement :

Requires Windows NT 3.1 or later
Requires Windows 95 or later

Dotnet Replacement :