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113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/* Client interface for General purpose Win32 console save/restore server
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Having the same interface as its Linux counterpart:
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Copyright (C) 1994 Janne Kukonlehto <jtklehto@stekt.oulu.fi>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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Note:
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show_console_contents doesn't know how to write to its window
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the rest works fine.
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*/
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#include <config.h>
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#include <windows.h>
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#include "trace_nt.h"
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int cons_saver_pid = 1;
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#include "../src/tty.h"
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#include "../src/util.h"
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#include "../src/win.h"
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#include "../src/cons.saver.h"
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signed char console_flag = 1;
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static HANDLE hSaved, hNew;
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void show_console_contents (int starty, unsigned char begin_line,
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unsigned char end_line)
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{
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COORD c0 = { 0, 0 };
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COORD csize;
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SMALL_RECT rect;
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CHAR_INFO *pchar;
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csize.X = COLS;
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csize.Y = end_line-begin_line;
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rect.Left = 0;
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rect.Top = begin_line;
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rect.Right = COLS;
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rect.Bottom = end_line;
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/* -- This code reads characters and attributes */
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pchar = malloc (sizeof(CHAR_INFO) * (end_line-begin_line) * COLS);
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/* Copy from one console to the curses virtual screen */
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win32APICALL(ReadConsoleOutput (hSaved, pchar, csize, c0, &rect));
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/* FIXME: this should've work,
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but refresh() is called after this write :-( */
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win32APICALL(WriteConsoleOutput (hNew, pchar, csize, c0, &rect));
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free (pchar);
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}
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void handle_console (unsigned char action)
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{
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static SECURITY_ATTRIBUTES sa;
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CONSOLE_SCREEN_BUFFER_INFO csbi;
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switch (action){
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case CONSOLE_INIT:
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/* Save Standard handle */
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hSaved = GetStdHandle (STD_OUTPUT_HANDLE);
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sa.nLength = sizeof(SECURITY_ATTRIBUTES);
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sa.lpSecurityDescriptor = NULL;
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/* Create a new console buffer */
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sa.bInheritHandle = TRUE;
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win32APICALL_HANDLE(hNew,
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CreateConsoleScreenBuffer (GENERIC_WRITE | GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE, &sa,
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CONSOLE_TEXTMODE_BUFFER, NULL));
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win32APICALL(GetConsoleScreenBufferInfo(hSaved, &csbi));
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csbi.dwSize.X=csbi.srWindow.Right-csbi.srWindow.Left;
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csbi.dwSize.Y=csbi.srWindow.Bottom-csbi.srWindow.Right;
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win32APICALL(SetConsoleScreenBufferSize(hNew, csbi.dwSize));
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/* that becomes standard handle */
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win32APICALL(SetConsoleActiveScreenBuffer(hNew));
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win32APICALL(SetConsoleMode(hNew, ENABLE_PROCESSED_INPUT));
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win32APICALL(SetStdHandle(STD_OUTPUT_HANDLE, hNew));
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break;
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case CONSOLE_DONE:
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win32APICALL(CloseHandle (hNew));
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break;
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case CONSOLE_SAVE:
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/* Current = our standard handle */
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win32APICALL(SetConsoleActiveScreenBuffer (hNew));
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win32APICALL(SetStdHandle (STD_OUTPUT_HANDLE, hNew));
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break;
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case CONSOLE_RESTORE:
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/* Put saved (shell) screen buffer */
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win32APICALL(SetConsoleActiveScreenBuffer (hSaved));
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win32APICALL(SetStdHandle (STD_OUTPUT_HANDLE, hSaved));
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break;
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default:
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win32Trace(("Invalid action code %d sent to handle_console", action));
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}
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}
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