reactos/rosapps/notevil/notevil.c

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/* $Id$
*
* notevil.c
*
* --------------------------------------------------------------------
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This software 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this software; see the file COPYING.LIB. If
* not, write to the Free Software Foundation, Inc., 675 Mass Ave,
* Cambridge, MA 02139, USA.
*
* --------------------------------------------------------------------
* ReactOS Coders Console Parade
*
* 19990411 EA
* 19990515 EA
*/
//#define UNICODE
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <tchar.h>
#include "resource.h"
LPCTSTR app_name = _TEXT("notevil");
HANDLE myself;
HANDLE ScreenBuffer;
CONSOLE_SCREEN_BUFFER_INFO ScreenBufferInfo;
HANDLE WaitableTimer;
void
WriteStringAt(
LPTSTR lpString,
COORD xy,
WORD wColor
)
{
DWORD cWritten = 0;
WORD wLen = lstrlen(lpString);
if (0 == wLen)
return;
// don't bother writing text when erasing
if( wColor )
WriteConsoleOutputCharacter( ScreenBuffer,
lpString,
wLen,
xy,
& cWritten
);
FillConsoleOutputAttribute(
ScreenBuffer,
wColor,
wLen,
xy,
& cWritten
);
}
#ifdef DISPLAY_COORD
void
WriteCoord(COORD c)
{
COORD xy = {0,0};
TCHAR buf [40];
wsprintf(
buf,
_TEXT("x=%02d y=%02d"),
c.X,
c.Y
);
WriteStringAt(
buf,
xy,
(BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE)
);
}
#endif /* def DISPLAY_COORD */
INT
GetNextString(
LPTSTR Buffer,
INT BufferSize,
DWORD *Index
)
{
if (RES_LAST_INDEX == *Index)
{
*Index = RES_FIRST_INDEX;
}
else
{
++*Index;
}
LoadString(
myself,
*Index,
Buffer,
BufferSize
);
return 0;
}
VOID
DisplayTitle(VOID)
{
LPTSTR szTitle = _TEXT("ReactOS Coders Console Parade");
COORD xy;
xy.X = (ScreenBufferInfo.dwSize.X - lstrlen(szTitle)) / 2;
xy.Y = ScreenBufferInfo.dwSize.Y / 2;
WriteStringAt(
szTitle,
xy,
(FOREGROUND_GREEN | FOREGROUND_INTENSITY)
);
}
#define RES_DELAY_CHANGE 12
#define RES_BUFFER_SIZE 1024
void
MainLoop(void)
{
TCHAR NameString [RES_BUFFER_SIZE];
DWORD NameIndex = 1;
INT NameLength = 0;
COORD xy;
INT n = RES_DELAY_CHANGE;
INT dir_y = 1;
INT dir_x = 1;
WORD wColor = 1;
xy.X = ScreenBufferInfo.dwSize.X / 2;
xy.Y = ScreenBufferInfo.dwSize.Y / 2;
for ( ; 1; ++n )
{
if (n == RES_DELAY_CHANGE)
{
n = GetNextString(
NameString,
RES_BUFFER_SIZE,
& NameIndex
);
NameLength = lstrlen(NameString);
wColor++;
if ((wColor & 0x000F) == 0)
wColor = 1;
}
if (xy.X == 0)
{
if (dir_x == -1)
dir_x = 1;
}
else if (xy.X >= ScreenBufferInfo.dwSize.X - NameLength - 1)
{
if (dir_x == 1)
dir_x = -1;
}
xy.X += dir_x;
if (xy.Y == 0)
{
if (dir_y == -1)
dir_y = 1;
}
else if (xy.Y >= ScreenBufferInfo.dwSize.Y - 1)
{
if (dir_y == 1)
dir_y = -1;
}
xy.Y += dir_y;
#ifdef DISPLAY_COORD
WriteCoord(xy);
#endif /* def DISPLAY_COORD */
DisplayTitle();
WriteStringAt(
NameString,
xy,
wColor
);
WaitForSingleObject( WaitableTimer, INFINITE );
WriteStringAt(
NameString,
xy,
0
);
}
}
int
main(
int argc,
char *argv []
)
{
LARGE_INTEGER lint;
DWORD Written;
COORD Coord = { 0, 0 };
myself = GetModuleHandle(NULL);
GetConsoleScreenBufferInfo (GetStdHandle(STD_OUTPUT_HANDLE),
&ScreenBufferInfo);
ScreenBufferInfo.dwSize.X = ScreenBufferInfo.srWindow.Right - ScreenBufferInfo.srWindow.Left + 1;
ScreenBufferInfo.dwSize.Y = ScreenBufferInfo.srWindow.Bottom - ScreenBufferInfo.srWindow.Top + 1;
ScreenBuffer = CreateConsoleScreenBuffer(
GENERIC_WRITE,
0,
NULL,
CONSOLE_TEXTMODE_BUFFER,
NULL
);
if (INVALID_HANDLE_VALUE == ScreenBuffer)
{
_ftprintf(
stderr,
_TEXT("%s: could not create a new screen buffer\n"),
app_name
);
return EXIT_FAILURE;
}
// Fill buffer with black background
FillConsoleOutputAttribute( ScreenBuffer,
0,
ScreenBufferInfo.dwSize.X * ScreenBufferInfo.dwSize.Y,
Coord,
&Written );
WaitableTimer = CreateWaitableTimer( NULL, FALSE, NULL );
if( WaitableTimer == INVALID_HANDLE_VALUE )
{
printf( "CreateWaitabletimer() failed\n" );
return 1;
}
lint.QuadPart = -2000000;
if( SetWaitableTimer( WaitableTimer, &lint, 200, NULL, NULL, FALSE ) == FALSE )
{
printf( "SetWaitableTimer() failed: %x\n", GetLastError() );
return 2;
}
SetConsoleActiveScreenBuffer(ScreenBuffer);
MainLoop();
CloseHandle(ScreenBuffer);
return EXIT_SUCCESS;
}
/* EOF */