notevil.c File Reference

#include <windows.h>
#include <stdio.h>
#include "resource.h"

Include dependency graph for notevil.c:

Go to the source code of this file.

Macros
#define	RES_DELAY_CHANGE   12
#define	RES_BUFFER_SIZE   1024

Functions
VOID	WriteStringAt (LPWSTR lpString, COORD xy, WORD wColor)
VOID	GetNextString (LPWSTR Buffer, INT BufferSize, PDWORD Index)
VOID	DisplayTitle (VOID)
VOID	MainLoop (VOID)
int	wmain (int argc, WCHAR *argv[])

Variables
LPCWSTR	app_name = L"notevil"
HANDLE	myself
HANDLE	ScreenBuffer
CONSOLE_SCREEN_BUFFER_INFO	ScreenBufferInfo
HANDLE	WaitableTimer

Macro Definition Documentation

RES_BUFFER_SIZE

#define RES_BUFFER_SIZE   1024

Definition at line 115 of file notevil.c.

RES_DELAY_CHANGE

#define RES_DELAY_CHANGE   12

Definition at line 114 of file notevil.c.

Function Documentation

DisplayTitle()

VOID DisplayTitle

(

VOID

)

Definition at line 101 of file notevil.c.

{
    LPWSTR szTitle = L"ReactOS Coders Console Parade";
    COORD  xy;
 
    xy.X = (ScreenBufferInfo.dwSize.X - (USHORT)wcslen(szTitle)) / 2;
    xy.Y = ScreenBufferInfo.dwSize.Y / 2;
 
    WriteStringAt(szTitle, xy,
                  FOREGROUND_GREEN | FOREGROUND_INTENSITY);
}

Referenced by MainLoop().

GetNextString()

VOID GetNextString	(	LPWSTR	Buffer,
		INT	BufferSize,
		PDWORD	Index
	)

Definition at line 87 of file notevil.c.

{
    if (RES_LAST_INDEX == *Index)
        *Index = RES_FIRST_INDEX;
    else
        ++*Index;
 
    LoadStringW(myself, *Index, Buffer, BufferSize);
}

Referenced by MainLoop().

MainLoop()

VOID MainLoop

(

VOID

)

Definition at line 117 of file notevil.c.

{
    WCHAR NameString[RES_BUFFER_SIZE];
    DWORD NameIndex  = 0;
    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 = 0;
 
            GetNextString(NameString,
                          RES_BUFFER_SIZE,
                          &NameIndex);
            NameLength = wcslen(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);
    }
}

Referenced by wmain().

wmain()

int wmain	(	int	argc,
		WCHAR *	argv[]
	)

Definition at line 182 of file notevil.c.

{
    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 (ScreenBuffer == INVALID_HANDLE_VALUE)
    {
        wprintf(L"%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)
    {
        wprintf(L"CreateWaitabletimer() failed\n");
        return 1;
    }
    lint.QuadPart = -2000000;
    if (!SetWaitableTimer(WaitableTimer, &lint, 200, NULL, NULL, FALSE))
    {
        wprintf(L"SetWaitableTimer() failed: 0x%lx\n", GetLastError());
        return 2;
    }
    SetConsoleActiveScreenBuffer(ScreenBuffer);
    MainLoop();
    CloseHandle(ScreenBuffer);
    return EXIT_SUCCESS;
}

WriteStringAt()

VOID WriteStringAt	(	LPWSTR	lpString,
		COORD	xy,
		WORD	wColor
	)

Definition at line 42 of file notevil.c.

{
    DWORD cWritten = 0;
    DWORD dwLen;
 
    if (!lpString || *lpString == 0) return;
 
    dwLen = (DWORD)wcslen(lpString);
 
    /* Don't bother writing text when erasing */
    if (wColor)
    {
        WriteConsoleOutputCharacterW(ScreenBuffer,
                                     lpString,
                                     dwLen,
                                     xy,
                                     &cWritten);
    }
 
    FillConsoleOutputAttribute(ScreenBuffer,
                               wColor,
                               dwLen,
                               xy,
                               &cWritten);
}

Referenced by DisplayTitle(), and MainLoop().

Variable Documentation

app_name

LPCWSTR app_name = L"notevil"

Definition at line 34 of file notevil.c.

Referenced by wmain().

myself

HANDLE myself

Definition at line 36 of file notevil.c.

Referenced by GetNextString(), and wmain().

ScreenBuffer

HANDLE ScreenBuffer

Definition at line 37 of file notevil.c.

Referenced by ConDrvReadConsoleOutput(), ConDrvScrollConsoleScreenBuffer(), ConDrvWriteConsole(), ConDrvWriteConsoleOutput(), ConDrvWriteConsoleOutputVDM(), ConioCopyRegion(), ConioFillRegion(), ConioResizeBuffer(), ConSrvTermReleaseScreenBuffer(), ConSrvTermSetCursorInfo(), ConSrvTermSetScreenInfo(), CreatePopupWindow(), DoWriteConsole(), GuiReleaseScreenBuffer(), SetActiveScreenBuffer(), TuiEditBox(), TuiMessageBox(), wmain(), and WriteStringAt().

ScreenBufferInfo

CONSOLE_SCREEN_BUFFER_INFO ScreenBufferInfo

Definition at line 38 of file notevil.c.

Referenced by CON_API(), ConDrvCreateScreenBuffer(), ConDrvInitConsole(), DisplayTitle(), MainLoop(), and wmain().

WaitableTimer

HANDLE WaitableTimer

Definition at line 39 of file notevil.c.

Referenced by CreateWaitableTimerA(), CreateWaitableTimerW(), MainLoop(), OpenWaitableTimerA(), and wmain().