Posted on 2010-07-06 09:10
S.l.e!ep.￠% 阅读(1106)
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VC
最后觉得项目中的控制台不大好用，就添加了一些小功能，比如清屏；当然最简单的方法是调用系统自带的函数system(“cls”);，这里提
供一个方法一样可以清屏（测试比cls要快一些）：
/*
Standard error macro for reporting API errors
*/
#define
PERR(bSuccess, api){if(!(bSuccess)) printf("%s:Error %d from %s \
on line
%
d\n
"
, __FILE__, GetLastError(), api, __LINE__);}
void
cls( HANDLE hConsole )
{
COORD coordScreen
=
{
0
,
0
};
/*
here's where we'll home the
cursor
*/
BOOL bSuccess;
DWORD cCharsWritten;
CONSOLE_SCREEN_BUFFER_INFO csbi;
/*
to get buffer info
*/
DWORD dwConSize;
/*
number of character cells in
the current buffer
*/
/*
get the number of character cells in the current buffer
*/
bSuccess
=
GetConsoleScreenBufferInfo( hConsole,
&
csbi );
PERR( bSuccess,
"
GetConsoleScreenBufferInfo
"
);
dwConSize
=
csbi.dwSize.X
*
csbi.dwSize.Y;
/*
fill the entire screen with blanks
*/
bSuccess
=
FillConsoleOutputCharacter( hConsole, (TCHAR)
'
'
,
dwConSize, coordScreen,
&
cCharsWritten );
PERR( bSuccess,
"
FillConsoleOutputCharacter
"
);
/*
get the current text attribute
*/
bSuccess
=
GetConsoleScreenBufferInfo( hConsole,
&
csbi );
PERR( bSuccess,
"
ConsoleScreenBufferInfo
"
);
/*
now set the buffer's attributes accordingly
*/
bSuccess
=
FillConsoleOutputAttribute( hConsole, csbi.wAttributes,
dwConSize, coordScreen,
&
cCharsWritten );
PERR( bSuccess,
"
FillConsoleOutputAttribute
"
);
/*
put the cursor at (0, 0)
*/
bSuccess
=
SetConsoleCursorPosition( hConsole, coordScreen );
PERR( bSuccess,
"
SetConsoleCursorPosition
"
);
return
;
}