NtDeviceIoControlFile

NtDeviceIoControlFile NTSYSAPI NTSTATUS NTAPI NtDeviceIoControlFile( IN HANDLE FileHandle, IN HANDLE Event OPTIONAL, IN PIO_APC_ROUTINE ApcRoutine OPTIONAL, IN PVOID ApcContext OPTIONAL, OUT PIO_STATUS_BLOCK IoStatusBlock, IN ULONG IoControlCode, IN PVOID InputBuffer OPTIONAL, IN ULONG InputBufferLength, OUT PVOID OutputBuffer OPTIONAL, IN ULONG OutputBufferLength ); Function NtDeviceIoControlFile sends IOCTL_* control code to Device Driver. It is primary (but not the best) solution to communicate between application and Device Driver. -------------------------------------------------------------------------------- FileHandle HANDLE to Device Object opened as a file. Event Optional HANDLE to Event Object signalled on the end of processing request. ApcRoutine Optional pointer to user's APC Routine called on the end of processing request. ApcContext User's parameter to ApcRoutine. IoStatusBlock IO result of call. IoControlCode IO Control code [IOCTL_*]. InputBuffer User's allocated buffer with input data. InputBufferLength Length of InputBuffer, in bytes. OutputBuffer User's allocated buffer for result data. OutputBufferLength Length of OutputBuffer, in bytes. -------------------------------------------------------------------------------- See also NtFsControlFile. Documented by: Tomasz Nowak Reactos Requirements: Library: ntdll.lib See also: NtCreateFile NtFsControlFile NtOpenFile