console.c

ReactOS是一些高手根据Windows XP的内核编写出的类XP。内核实现机理和API函数调用几乎相同。甚至可以兼容XP的程序。喜欢研究系统内核的人可以看一看。

/*
 *  ReactOS kernel
 *  Copyright (C) 2002 ReactOS Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
/*
 * COPYRIGHT:       See COPYING in the top level directory
 * PROJECT:         ReactOS text-mode setup
 * FILE:            subsys/system/usetup/console.c
 * PURPOSE:         Console support functions
 * PROGRAMMER:      Eric Kohl
 */

/* INCLUDES ******************************************************************/

#include "usetup.h"
/* Blue Driver Header */
#include <blue/ntddblue.h>
#include "keytrans.h"

#define NDEBUG
#include <debug.h>

/* FUNCTIONS *****************************************************************/

BOOL WINAPI
AllocConsole(VOID)
{
	UNICODE_STRING ScreenName = RTL_CONSTANT_STRING(L"\\??\\BlueScreen");
	UNICODE_STRING KeyboardName = RTL_CONSTANT_STRING(L"\\Device\\KeyboardClass0");
	OBJECT_ATTRIBUTES ObjectAttributes;
	IO_STATUS_BLOCK IoStatusBlock;
	NTSTATUS Status;

	/* Open the screen */
	InitializeObjectAttributes(
		&ObjectAttributes,
		&ScreenName,
		0,
		NULL,
		NULL);
	Status = NtOpenFile(
		&StdOutput,
		FILE_ALL_ACCESS,
		&ObjectAttributes,
		&IoStatusBlock,
		0,
		FILE_SYNCHRONOUS_IO_ALERT);
	if (!NT_SUCCESS(Status))
		return FALSE;

	/* Open the keyboard */
	InitializeObjectAttributes(
		&ObjectAttributes,
		&KeyboardName,
		0,
		NULL,
		NULL);
	Status = NtOpenFile(
		&StdInput,
		FILE_ALL_ACCESS,
		&ObjectAttributes,
		&IoStatusBlock,
		0,
		FILE_SYNCHRONOUS_IO_ALERT);
	if (!NT_SUCCESS(Status))
		return FALSE;

	return TRUE;
}

BOOL WINAPI
AttachConsole(
	IN DWORD dwProcessId)
{
	return FALSE;
}

BOOL WINAPI
FreeConsole(VOID)
{
	DPRINT("FreeConsole() called\n");

	if (StdInput != INVALID_HANDLE_VALUE)
		NtClose(StdInput);

	if (StdOutput != INVALID_HANDLE_VALUE)
		NtClose(StdOutput);

	DPRINT("FreeConsole() done\n");
	return TRUE;
}

BOOL WINAPI
WriteConsole(
	IN HANDLE hConsoleOutput,
	IN const VOID* lpBuffer,
	IN DWORD nNumberOfCharsToWrite,
	OUT LPDWORD lpNumberOfCharsWritten,
	IN LPVOID lpReserved)
{
	IO_STATUS_BLOCK IoStatusBlock;
	NTSTATUS Status;

	Status = NtWriteFile(
		hConsoleOutput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		(PVOID)lpBuffer,
		nNumberOfCharsToWrite,
		NULL,
		NULL);
	if (!NT_SUCCESS(Status))
		return FALSE;

	*lpNumberOfCharsWritten = IoStatusBlock.Information;
	return TRUE;
}

HANDLE WINAPI
GetStdHandle(
	IN DWORD nStdHandle)
{
	switch (nStdHandle)
	{
		case STD_INPUT_HANDLE:
			return StdInput;
		case STD_OUTPUT_HANDLE:
			return StdOutput;
		default:
			return INVALID_HANDLE_VALUE;
	}
}

BOOL WINAPI
ReadConsoleInput(
	IN HANDLE hConsoleInput,
	OUT PINPUT_RECORD lpBuffer,
	IN DWORD nLength,
	OUT LPDWORD lpNumberOfEventsRead)
{
	IO_STATUS_BLOCK IoStatusBlock;
	KEYBOARD_INPUT_DATA InputData;
	NTSTATUS Status;

	lpBuffer->EventType = KEY_EVENT;
	Status = NtReadFile(
		hConsoleInput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		&InputData,
		sizeof(KEYBOARD_INPUT_DATA),
		NULL,
		0);
	if (!NT_SUCCESS(Status))
		return FALSE;

	Status = IntTranslateKey(&InputData, &lpBuffer->Event.KeyEvent);
	if (!NT_SUCCESS(Status))
		return FALSE;

	*lpNumberOfEventsRead = 1;
	return TRUE;
}

BOOL WINAPI
WriteConsoleOutputCharacterA(
	HANDLE hConsoleOutput,
	IN LPCSTR lpCharacter,
	IN DWORD nLength,
	IN COORD dwWriteCoord,
	OUT LPDWORD lpNumberOfCharsWritten)
{
	IO_STATUS_BLOCK IoStatusBlock;
	PCHAR Buffer;
	COORD *pCoord;
	PCHAR pText;
	NTSTATUS Status;

	Buffer = (CHAR*) RtlAllocateHeap(
		ProcessHeap,
		0,
		nLength + sizeof(COORD));
	pCoord = (COORD *)Buffer;
	pText = (PCHAR)(pCoord + 1);

	*pCoord = dwWriteCoord;
	memcpy(pText, lpCharacter, nLength);

	Status = NtDeviceIoControlFile(
		hConsoleOutput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		IOCTL_CONSOLE_WRITE_OUTPUT_CHARACTER,
		NULL,
		0,
		Buffer,
		nLength + sizeof(COORD));

	RtlFreeHeap(
		ProcessHeap,
		0,
		Buffer);
	if (!NT_SUCCESS(Status))
		return FALSE;

	*lpNumberOfCharsWritten = IoStatusBlock.Information;
	return TRUE;
}

BOOL WINAPI
WriteConsoleOutputCharacterW(
	HANDLE hConsoleOutput,
	IN LPCWSTR lpCharacter,
	IN DWORD nLength,
	IN COORD dwWriteCoord,
	OUT LPDWORD lpNumberOfCharsWritten)
{
	IO_STATUS_BLOCK IoStatusBlock;
	PCHAR Buffer;
	COORD *pCoord;
	PCHAR pText;
	NTSTATUS Status;
	ULONG i;

	Buffer = (CHAR*) RtlAllocateHeap(
		ProcessHeap,
		0,
		nLength + sizeof(COORD));
	pCoord = (COORD *)Buffer;
	pText = (PCHAR)(pCoord + 1);

	*pCoord = dwWriteCoord;

	/* FIXME: use real unicode->oem conversion */
	for (i = 0; i < nLength; i++)
		pText[i] = (CHAR)lpCharacter[i];

	Status = NtDeviceIoControlFile(
		hConsoleOutput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		IOCTL_CONSOLE_WRITE_OUTPUT_CHARACTER,
		NULL,
		0,
		Buffer,
		nLength + sizeof(COORD));

	RtlFreeHeap(
		ProcessHeap,
		0,
		Buffer);
	if (!NT_SUCCESS(Status))
		return FALSE;

	*lpNumberOfCharsWritten = IoStatusBlock.Information;
	return TRUE;
}

BOOL WINAPI
FillConsoleOutputAttribute(
	IN HANDLE hConsoleOutput,
	IN WORD wAttribute,
	IN DWORD nLength,
	IN COORD dwWriteCoord,
	OUT LPDWORD lpNumberOfAttrsWritten)
{
	IO_STATUS_BLOCK IoStatusBlock;
	OUTPUT_ATTRIBUTE Buffer;
	NTSTATUS Status;

	Buffer.wAttribute = wAttribute;
	Buffer.nLength    = nLength;
	Buffer.dwCoord    = dwWriteCoord;

	Status = NtDeviceIoControlFile(
		hConsoleOutput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		IOCTL_CONSOLE_FILL_OUTPUT_ATTRIBUTE,
		&Buffer,
		sizeof(OUTPUT_ATTRIBUTE),
		&Buffer,
		sizeof(OUTPUT_ATTRIBUTE));

	if (!NT_SUCCESS(Status))
		return FALSE;

	*lpNumberOfAttrsWritten = Buffer.dwTransfered;
	return TRUE;
}

BOOL WINAPI
FillConsoleOutputCharacterA(
	IN HANDLE hConsoleOutput,
	IN CHAR cCharacter,
	IN DWORD nLength,
	IN COORD dwWriteCoord,
	OUT LPDWORD lpNumberOfCharsWritten)
{
	IO_STATUS_BLOCK IoStatusBlock;
	OUTPUT_CHARACTER Buffer;
	NTSTATUS Status;

	Buffer.cCharacter = cCharacter;
	Buffer.nLength = nLength;
	Buffer.dwCoord = dwWriteCoord;

	Status = NtDeviceIoControlFile(
		hConsoleOutput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		IOCTL_CONSOLE_FILL_OUTPUT_CHARACTER,
		&Buffer,
		sizeof(OUTPUT_CHARACTER),
		&Buffer,
		sizeof(OUTPUT_CHARACTER));
	if (!NT_SUCCESS(Status))
		return FALSE;

	*lpNumberOfCharsWritten = Buffer.dwTransfered;
	return TRUE;
}

BOOL WINAPI
GetConsoleScreenBufferInfo(
	IN HANDLE hConsoleOutput,
	OUT PCONSOLE_SCREEN_BUFFER_INFO lpConsoleScreenBufferInfo)
{
	IO_STATUS_BLOCK IoStatusBlock;
	NTSTATUS Status;

	Status = NtDeviceIoControlFile(
		hConsoleOutput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		IOCTL_CONSOLE_GET_SCREEN_BUFFER_INFO,
		NULL,
		0,
		lpConsoleScreenBufferInfo,
		sizeof(CONSOLE_SCREEN_BUFFER_INFO));
	return NT_SUCCESS(Status);
}

BOOL WINAPI
SetConsoleCursorInfo(
	IN HANDLE hConsoleOutput,
	IN const CONSOLE_CURSOR_INFO* lpConsoleCursorInfo)
{
	IO_STATUS_BLOCK IoStatusBlock;
	NTSTATUS Status;

	Status = NtDeviceIoControlFile(
		hConsoleOutput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		IOCTL_CONSOLE_SET_CURSOR_INFO,
		(PCONSOLE_CURSOR_INFO)lpConsoleCursorInfo,
		sizeof(CONSOLE_CURSOR_INFO),
		NULL,
		0);
	return NT_SUCCESS(Status);
}

BOOL WINAPI
SetConsoleCursorPosition(
	IN HANDLE hConsoleOutput,
	IN COORD dwCursorPosition)
{
	CONSOLE_SCREEN_BUFFER_INFO ConsoleScreenBufferInfo;
	IO_STATUS_BLOCK IoStatusBlock;
	NTSTATUS Status;

	Status = GetConsoleScreenBufferInfo(hConsoleOutput, &ConsoleScreenBufferInfo);
	if (!NT_SUCCESS(Status))
		return FALSE;

	ConsoleScreenBufferInfo.dwCursorPosition.X = dwCursorPosition.X;
	ConsoleScreenBufferInfo.dwCursorPosition.Y = dwCursorPosition.Y;

	Status = NtDeviceIoControlFile(
		hConsoleOutput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		IOCTL_CONSOLE_SET_SCREEN_BUFFER_INFO,
		&ConsoleScreenBufferInfo,
		sizeof(CONSOLE_SCREEN_BUFFER_INFO),
		NULL,
		0);

	return NT_SUCCESS(Status);
}

BOOL WINAPI
SetConsoleTextAttribute(
	IN HANDLE hConsoleOutput,
	IN WORD wAttributes)
{
	IO_STATUS_BLOCK IoStatusBlock;
	NTSTATUS Status;

	Status = NtDeviceIoControlFile(
		hConsoleOutput,
		NULL,
		NULL,
		NULL,
		&IoStatusBlock,
		IOCTL_CONSOLE_SET_TEXT_ATTRIBUTE,
		&wAttributes,
		sizeof(USHORT),
		NULL,
		0);
	return NT_SUCCESS(Status);
}

/* EOF */