reactos/rosapps/mc/pc/cons_nt.c

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/* Client interface for General purpose Win32 console save/restore server
Having the same interface as its Linux counterpart:
Copyright (C) 1994 Janne Kukonlehto <jtklehto@stekt.oulu.fi>
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.
Note:
show_console_contents doesn't know how to write to its window
the rest works fine.
*/
#include <config.h>
#include <windows.h>
#include "trace_nt.h"
int cons_saver_pid = 1;
#include "../src/tty.h"
#include "../src/util.h"
#include "../src/win.h"
#include "../src/cons.saver.h"
signed char console_flag = 1;
static HANDLE hSaved, hNew;
void show_console_contents (int starty, unsigned char begin_line,
unsigned char end_line)
{
COORD c0 = { 0, 0 };
COORD csize;
SMALL_RECT rect;
CHAR_INFO *pchar;
csize.X = COLS;
csize.Y = end_line-begin_line;
rect.Left = 0;
rect.Top = begin_line;
rect.Right = COLS;
rect.Bottom = end_line;
/* -- This code reads characters and attributes */
pchar = malloc (sizeof(CHAR_INFO) * (end_line-begin_line) * COLS);
/* Copy from one console to the curses virtual screen */
win32APICALL(ReadConsoleOutput (hSaved, pchar, csize, c0, &rect));
/* FIXME: this should've work,
but refresh() is called after this write :-( */
win32APICALL(WriteConsoleOutput (hNew, pchar, csize, c0, &rect));
free (pchar);
}
void handle_console (unsigned char action)
{
static SECURITY_ATTRIBUTES sa;
CONSOLE_SCREEN_BUFFER_INFO csbi;
switch (action){
case CONSOLE_INIT:
/* Save Standard handle */
hSaved = GetStdHandle (STD_OUTPUT_HANDLE);
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
/* Create a new console buffer */
sa.bInheritHandle = TRUE;
win32APICALL_HANDLE(hNew,
CreateConsoleScreenBuffer (GENERIC_WRITE | GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE, &sa,
CONSOLE_TEXTMODE_BUFFER, NULL));
win32APICALL(GetConsoleScreenBufferInfo(hSaved, &csbi));
csbi.dwSize.X=csbi.srWindow.Right-csbi.srWindow.Left;
csbi.dwSize.Y=csbi.srWindow.Bottom-csbi.srWindow.Right;
win32APICALL(SetConsoleScreenBufferSize(hNew, csbi.dwSize));
/* that becomes standard handle */
win32APICALL(SetConsoleActiveScreenBuffer(hNew));
win32APICALL(SetConsoleMode(hNew, ENABLE_PROCESSED_INPUT));
win32APICALL(SetStdHandle(STD_OUTPUT_HANDLE, hNew));
break;
case CONSOLE_DONE:
win32APICALL(CloseHandle (hNew));
break;
case CONSOLE_SAVE:
/* Current = our standard handle */
win32APICALL(SetConsoleActiveScreenBuffer (hNew));
win32APICALL(SetStdHandle (STD_OUTPUT_HANDLE, hNew));
break;
case CONSOLE_RESTORE:
/* Put saved (shell) screen buffer */
win32APICALL(SetConsoleActiveScreenBuffer (hSaved));
win32APICALL(SetStdHandle (STD_OUTPUT_HANDLE, hSaved));
break;
default:
win32Trace(("Invalid action code %d sent to handle_console", action));
}
}