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Switched to using waitable timers instead of Sleep(), gives more accurate time cycles, also added some small optimizations

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svn path=/trunk/; revision=1629
This commit is contained in:
Phillip Susi 2001-02-18 19:31:38 +00:00
parent 349ae0c799
commit 3d4886b292
1 changed files with 27 additions and 10 deletions
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37
rosapps/notevil/notevil.c
View file

@ -1,4 +1,4 @@
/* $Id: notevil.c,v 1.4 2001/01/31 03:03:20 phreak Exp $
/* $Id: notevil.c,v 1.5 2001/02/18 19:31:38 phreak Exp $
*
* notevil.c
*
@ -37,6 +37,7 @@ LPCTSTR app_name = _TEXT("notevil");
HANDLE myself;
HANDLE ScreenBuffer;
CONSOLE_SCREEN_BUFFER_INFO ScreenBufferInfo;
HANDLE WaitableTimer;
void
WriteStringAt(
@ -50,13 +51,14 @@ WriteStringAt(
if (0 == wLen)
return;
WriteConsoleOutputCharacter(
ScreenBuffer,
lpString,
wLen,
xy,
& cWritten
);
// don't bother writing text when erasing
if( wColor )
WriteConsoleOutputCharacter( ScreenBuffer,
lpString,
wLen,
xy,
& cWritten
);
FillConsoleOutputAttribute(
ScreenBuffer,
wColor,
@ -194,7 +196,7 @@ MainLoop(void)
xy,
wColor
);
Sleep(100);
WaitForSingleObject( WaitableTimer, INFINITE );
WriteStringAt(
NameString,
xy,
@ -210,8 +212,10 @@ main(
char *argv []
)
{
DWORD Written;
LARGE_INTEGER lint;
DWORD Written;
COORD Coord = { 0, 0 };
myself = GetModuleHandle(NULL);
GetConsoleScreenBufferInfo (GetStdHandle(STD_OUTPUT_HANDLE),
@ -240,6 +244,19 @@ main(
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);