用DELPHI修改系统时间？很急

[oicq111]

用DELPHI如何修改机器的系统时间呢？不如把‘2005-12-30’时间格式的修改为系统时间呢？

[Frank.WU]

procedure TForm1.SetDate(Date: TDateTime);
Var
D:TSystemTime;
Year,Month,Day:Word;
begin
Try
DecodeDate(Date,Year,Month,Day);
GetSystemtime(D);
D.wYear:=Year;
D.wMonth:=Month;
D.wDay:=Day;
SetSystemTime(D);
Except
end;
end;

//SetSystemTime设置的是GMT时间，SetLocalTime设置的才是本地时区时间。

[luxuewei5214]

设置系统时间 change the system time?

{1.}

{
For Windows 9X/ME/NT/2000/XP:

The SetLocalTime function fails if the calling process does not have
the SE_SYSTEMTIME_NAME privilege. This privilege is disabled by default.
Use the AdjustTokenPrivileges function to enable this privilege.
}

function SetPCSystemTime(dDateTime: TDateTime): Boolean;
const
SE_SYSTEMTIME_NAME = 'SeSystemtimePrivilege';
var
hToken: THandle;
ReturnLength: DWORD;
tkp, PrevTokenPriv: TTokenPrivileges;
luid: TLargeInteger;
dSysTime: TSystemTime;
begin
Result := False;
if (Win32Platform = VER_PLATFORM_WIN32_NT) then
begin
if OpenProcessToken(GetCurrentProcess,
TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY, hToken) then
begin
try
if not LookupPrivilegeValue(nil, SE_SYSTEMTIME_NAME, luid) then Exit;
tkp.PrivilegeCount := 1;
tkp.Privileges[0].luid := luid;
tkp.Privileges[0].Attributes := SE_PRIVILEGE_ENABLED;
if not AdjustTokenPrivileges(hToken, False, tkp, SizeOf(TTOKENPRIVILEGES),
PrevTokenPriv, ReturnLength) then
Exit;
if (GetLastError <> ERROR_SUCCESS) then
begin
raise Exception.Create(SysErrorMessage(GetLastError));
Exit;
end;
finally
CloseHandle(hToken);
end;
end;
end;
DateTimeToSystemTime(dDateTime, dSysTime);
Result := Windows.SetLocalTime(dSysTime);
end;

{************************************************************}

{2.}

procedure TForm1.Button1Click(Sender: TObject);
var
SystemTime: TSystemTime;
NewTime, NewDate: string;
begin
NewTime := '13:58:00';
NewDate := '02.02.2001'; // or '02/02/01'
DateTimeToSystemTime(StrToDate(NewDate) + StrToTime(NewTime), SystemTime);
SetLocalTime(SystemTime);
// Tell windows, that the Time changed!
PostMessage(HWND_BROADCAST, WM_TIMECHANGE, 0, 0); // *
end;

{
Windows 2000 and later: An application should not broadcast
the WM_TIMECHANGE message because the system will broadcast
this message when the application changes the system time.
}

{************************************************************}

{3.}

function SetSystemTime(DateTime: TDateTime): Boolean;
{ (c) by UNDO }
var
tSetDati: TDateTime;
vDatiBias: Variant;
tTZI: TTimeZoneInformation;
tST: TSystemTime;
begin
GetTimeZoneInformation(tTZI);
vDatiBias := tTZI.Bias / 1440;
tSetDati := DateTime + vDatiBias;
with tST do
begin
wYear := StrToInt(FormatDateTime('yyyy', tSetDati));
wMonth := StrToInt(FormatDateTime('mm', tSetDati));
wDay := StrToInt(FormatDateTime('dd', tSetDati));
wHour := StrToInt(FormatDateTime('hh', tSetDati));
wMinute := StrToInt(FormatDateTime('nn', tSetDati));
wSecond := StrToInt(FormatDateTime('ss', tSetDati));
wMilliseconds := 0;
end;
Result := Windows.SetSystemTime(tST);
end;

[cchao]

Winexec('cmd /c time 20:20:20',SW_HIDE);

[cchao]

Winexec('cmd /c date 1988-8-8',SW_HIDE);

[ly_liuyang]

SetSystemTime注意时区即可
基础东西,baidu随时有的

[stonezhy]

收藏~~

[lazycat818]

昨天刚看到的，没来得及试。

改变系统时间
　　1、定义变量
var SystemTime: TSystemTime;
　　2、转换日期
DateTimeToSystemTime(StrToDatetime('1999-09-01 11:12:12' ),SystemTime);
　　3、改变系统日期
SetSystemTime(SystemTime);
　　到此系统日期已经改变，可是由于API函数SetSystemTime()本身存在的BUG，
在你改变系统日期以后，等待一会，你会看到系统的日期是对的，可是时间却错了，
并不是我们设定的11:12:12，这样的问题看来需要微软才能解决了

///////////////////// 方法二 /////////////////////////
{ SetDate sets the current date in the operating system. Valid }
{ parameter ranges are: Year 1980-2099, Month 1-12 and Day }
{ 1-31. If the date is not valid, the function call is ignored. }
procedure SetDate(Year, Month, Day: Word); assembler;
asm
MOV CX,Year
MOV DH,BYTE PTR Month
MOV DL,BYTE PTR Day
MOV AH,2BH
INT 21H
end;

{ SetTime sets the time in the operating system. Valid }
{ parameter ranges are: Hour 0-23, Minute 0-59, Second 0-59 and }
{ Sec100 (hundredths of seconds) 0-99. If the time is not }
{ valid, the function call is ignored. }
procedure SetTime(Hour, Minute, Second, Sec100: Word); assembler;
asm
MOV CH,BYTE PTR Hour
MOV CL,BYTE PTR Minute
MOV DH,BYTE PTR Second
MOV DL,BYTE PTR Sec100
MOV AH,2DH
INT 21H
end;

function SetSystemDateTime(Year, Month, Day, Hour, Minute, Second: word): integer; export;
begin
SetDate(Year, Month, Day);
SetTime(Hour, Minute + 1, Second, 0);
result := 1;
end;