// 这是我以前写的一段代码,在NT/Win2k下可以工作 // 算你好运。 // 主要的trick是WindowsStation/Desktop和那句PostMessageconst DEF_ACT_WS: PChar = 'WinSta0'; // current user window station LOGON_DT: PChar = 'WinLogon'; // winlogon desktop DEFAULT_DT: PChar = 'Default'; // default desktopconst FLAG_OPEN_WS = WINSTA_ENUMDESKTOPS or WINSTA_READATTRIBUTES or WINSTA_ACCESSCLIPBOARD or WINSTA_CREATEDESKTOP or WINSTA_WRITEATTRIBUTES or WINSTA_ACCESSGLOBALATOMS or WINSTA_EXITWINDOWS or WINSTA_ENUMERATE or WINSTA_READSCREEN; FLAG_OPEN_DT = DESKTOP_READOBJECTS or DESKTOP_CREATEWINDOW or DESKTOP_CREATEMENU or DESKTOP_HOOKCONTROL or DESKTOP_JOURNALRECORD or DESKTOP_JOURNALPLAYBACK or DESKTOP_ENUMERATE or DESKTOP_WRITEOBJECTS or DESKTOP_SWITCHDESKTOP;function OpenWSDT (pszWS, pszDT: PChar; var hOldWS: HWINSTA; var hOldDT: HDESK): Boolean; var hNewWS: HWINSTA; hNewDT: HDESK; begin Result := FALSE; hOldWS := GetProcessWindowStation; hOldDT := GetThreadDesktop (GetCurrentThreadID); hNewWS := 0; if pszWS<>nil then begin hNewWS := OpenWindowStation(pszWS,FALSE,FLAG_OPEN_WS); if hNewWS<>0 then begin if not SetProcessWindowStation(hNewWS) then begin CloseWindowStation(hNewWS); Exit; end; end else Exit; end; if pszDT=nil then hNewDT := OpenInputDesktop(0,FALSE,FLAG_OPEN_DT) else hNewDT := OpenDesktop (pszDT,0,FALSE,FLAG_OPEN_DT); if hNewDT<>0 then if not SetThreadDesktop (hNewDT) then begin CloseDesktop (hNewDT); end else Result := TRUE; if not Result then begin // Failed, close switched station if hNewWS<>0 then begin if SetProcessWindowStation(hOldWS) then begin CloseWindowStation (hNewWS); end; end; end;end;procedure SwitchWSDT(hWS: HWINSTA; hDT: HDESK); var hCurWS: HWINSTA; hCurDT: HDESK; begin if hWS<>0 then begin hCurWS := GetProcessWindowStation; if hWS<>hCurWS then if SetProcessWindowStation(hWS) then begin CloseWindowStation(hCurWS); end; end; if hDT<>0 then begin hCurDT := GetThreadDesktop (GetCurrentThreadID); if hCurDT<>hDT then if SetThreadDesktop(hDT) then begin CloseDesktop(hCurDT); end; end; end;procedure SimulateCtrlAltDel (bIsWinNT: Boolean); var hOldWS: HWINSTA; hOldDT: HDESK; begin if not OpenWSDT(DEF_ACT_WS,LOGON_DT,hOldWS,hOldDT) then hOldWS := 0; PostMessage(HWND_BROADCAST,WM_HOTKEY,0, MAKELONG(MOD_ALT or MOD_CONTROL, VK_DELETE)); if hOldWS<>0 then SwitchWSDT(hOldWS,hOldDT); end; // HTH
//这是段模拟按键的代码,也是我以前写的。 // 特殊按键通过SetShiftState()来做,例如SetShiftState(VK_MENU,TRUE);procedure KeybdEvent (KeyCode: Byte; Flags: DWORD); begin Keybd_Event(KeyCode, MapVirtualKey(KeyCode, 0), Flags, 0); end;procedure SetShiftState (Key: Byte; Down: Boolean); var KeyState: Boolean; Flags: DWORD; begin KeyState := GetAsyncKeyState(Key) and $8000<>0; if (KeyState and Down) or ((not KeyState)and(not Down)) then Exit; if Down then Flags := 0 else Flags := KEYEVENTF_KEYUP; KeybdEvent(Key,Flags); end;procedure SendKey (KeySym: Char; KeyDown: Boolean; bIsWinNT: Boolean); var KeyVal: SmallInt; KeyCode, KeyMask: Byte; LShift,RShift,Ctrl,Alt, CapsLock: Boolean; Flags: DWORD; begin KeyVal := VkKeyScan(Char(Byte(KeySym) and $FF)); KeyCode := LOBYTE(KeyVal); KeyMask := HIBYTE(KeyVal); if KeyCode=$FF then Exit; CapsLock := (GetAsyncKeyState(VK_CAPITAL) and $8000)<>0; if CapsLock then KeyMask := KeyMask xor 1; if bIsWinNT then begin LShift := (GetAsyncKeyState(VK_LSHIFT) and $8000) <> 0; RShift := (GetAsyncKeyState(VK_RSHIFT) and $8000) <> 0; SetShiftState(VK_RSHIFT, FALSE); SetShiftState(VK_LSHIFT, FALSE); SetShiftState(VK_SHIFT, (KeyMask and $01)<>0); Ctrl := (GetAsyncKeyState(VK_LCONTROL) and $8000) <> 0; if (not Ctrl) then SetShiftState(VK_LCONTROL,(KeyMask and $02)<>0); Alt := (GetAsyncKeyState(VK_LMENU) and $8000) <> 0; if (not Alt) then SetShiftState(VK_LMENU,(KeyMask and $04)<>0); end else begin LShift := (GetAsyncKeyState(VK_SHIFT) and $8000) <> 0; RShift := FALSE; SetShiftState (VK_SHIFT, (KeyMask and $01)<>0); Ctrl := (GetAsyncKeyState(VK_CONTROL) and $8000) <> 0; if (not Ctrl) then SetShiftState(VK_CONTROL, (Keymask and $02)<>0); Alt := (GetAsyncKeyState(VK_MENU) and $8000) <> 0; if (not Alt) then SetShiftState(VK_MENU,(KeyMask and $04)<>0); end; if KeyDown then Flags := 0 else Flags := KEYEVENTF_KEYUP; KeybdEvent(KeyCode and $FF,Flags); if bIsWinNT then begin SetShiftState(VK_LSHIFT, LShift); SetShiftState(VK_RSHIFT, RSHIFT); SetShiftState(VK_LCONTROL, CTRL); SetShiftState(VK_LMENU, ALT); end else begin SetShiftState(VK_SHIFT, LSHIFT); SetShiftState(VK_CONTROL, CTRL); SetShiftState(VK_MENU, ALT); end; end;// HTH // 不要有非法企图啊
可以啊! 我刚试了一下,一下就弹出了对话框。 OnExecuteprocedure TTestService.TestServiceExecute(Sender: TService); begin Sleep(15000); SimulateCtrlAltDel(TRUE); Sleep(5000); end;
不会吧,我是这样用的: procedure TServiceZsj.ServerSocket1ClientRead(Sender: TObject; Socket: TCustomWinSocket); var Cmd:string; begin Cmd:=Socket.ReceiveText; WriteLn(F,FormatDatetime('yyyy-mm-dd hh:nn:ss',Now)+' --- '+Cmd); if Cmd='Login' then SimulateCtrlAltDel(True); end; 应该没有什么区别啊,怎么我的不行呢?奇怪了
从这个操作流程看,实现应该是:
1.按钮事件中处理一个信息传递,远程机器接收后再模拟CTRL+ALT+DEL的操作
2.消息的传递我想跟设置中的选项有关,一般是设置为tcp/ip,也就是消息是使用tcp/ip协议出去的
3.模拟CTRL+ALT+DEL操作向系统传递消息属于windows编程的内容,应该可以在很多地方找到
// 算你好运。
// 主要的trick是WindowsStation/Desktop和那句PostMessageconst
DEF_ACT_WS: PChar = 'WinSta0'; // current user window station
LOGON_DT: PChar = 'WinLogon'; // winlogon desktop
DEFAULT_DT: PChar = 'Default'; // default desktopconst
FLAG_OPEN_WS =
WINSTA_ENUMDESKTOPS or WINSTA_READATTRIBUTES or
WINSTA_ACCESSCLIPBOARD or WINSTA_CREATEDESKTOP or
WINSTA_WRITEATTRIBUTES or WINSTA_ACCESSGLOBALATOMS or
WINSTA_EXITWINDOWS or WINSTA_ENUMERATE or WINSTA_READSCREEN;
FLAG_OPEN_DT =
DESKTOP_READOBJECTS or DESKTOP_CREATEWINDOW or
DESKTOP_CREATEMENU or DESKTOP_HOOKCONTROL or
DESKTOP_JOURNALRECORD or DESKTOP_JOURNALPLAYBACK or
DESKTOP_ENUMERATE or DESKTOP_WRITEOBJECTS or DESKTOP_SWITCHDESKTOP;function OpenWSDT (pszWS, pszDT: PChar; var hOldWS: HWINSTA;
var hOldDT: HDESK): Boolean;
var
hNewWS: HWINSTA;
hNewDT: HDESK;
begin
Result := FALSE;
hOldWS := GetProcessWindowStation;
hOldDT := GetThreadDesktop (GetCurrentThreadID); hNewWS := 0;
if pszWS<>nil then
begin
hNewWS := OpenWindowStation(pszWS,FALSE,FLAG_OPEN_WS);
if hNewWS<>0 then
begin
if not SetProcessWindowStation(hNewWS) then
begin
CloseWindowStation(hNewWS);
Exit;
end;
end else Exit;
end; if pszDT=nil then
hNewDT := OpenInputDesktop(0,FALSE,FLAG_OPEN_DT) else
hNewDT := OpenDesktop (pszDT,0,FALSE,FLAG_OPEN_DT);
if hNewDT<>0 then
if not SetThreadDesktop (hNewDT) then
begin
CloseDesktop (hNewDT);
end else Result := TRUE; if not Result then
begin
// Failed, close switched station
if hNewWS<>0 then
begin
if SetProcessWindowStation(hOldWS) then
begin
CloseWindowStation (hNewWS);
end;
end;
end;end;procedure SwitchWSDT(hWS: HWINSTA; hDT: HDESK);
var
hCurWS: HWINSTA;
hCurDT: HDESK;
begin
if hWS<>0 then
begin
hCurWS := GetProcessWindowStation;
if hWS<>hCurWS then
if SetProcessWindowStation(hWS) then
begin
CloseWindowStation(hCurWS);
end;
end; if hDT<>0 then
begin
hCurDT := GetThreadDesktop (GetCurrentThreadID);
if hCurDT<>hDT then
if SetThreadDesktop(hDT) then
begin
CloseDesktop(hCurDT);
end;
end;
end;procedure SimulateCtrlAltDel (bIsWinNT: Boolean);
var
hOldWS: HWINSTA;
hOldDT: HDESK;
begin
if not OpenWSDT(DEF_ACT_WS,LOGON_DT,hOldWS,hOldDT) then hOldWS := 0;
PostMessage(HWND_BROADCAST,WM_HOTKEY,0,
MAKELONG(MOD_ALT or MOD_CONTROL, VK_DELETE));
if hOldWS<>0 then SwitchWSDT(hOldWS,hOldDT);
end;
// HTH
呵呵
能指点一下吗?
我在我们的产品的远程维护一直用着。代码是对的。
在user模式下我没仔细研究过,抱歉。
我刚才看了一下,是OpenDesktop()失败,估计是权限还是什么原因,没时间研究。Good luck.
如果你使用这段代码,说不好只能写Service,
到目前为止我还没见过不用Service就能这样做的软件
(除了Windows本身,其实我怀疑它是怎么做的)。
HTH.
// 特殊按键通过SetShiftState()来做,例如SetShiftState(VK_MENU,TRUE);procedure KeybdEvent (KeyCode: Byte; Flags: DWORD);
begin
Keybd_Event(KeyCode, MapVirtualKey(KeyCode, 0), Flags, 0);
end;procedure SetShiftState (Key: Byte; Down: Boolean);
var
KeyState: Boolean;
Flags: DWORD;
begin
KeyState := GetAsyncKeyState(Key) and $8000<>0;
if (KeyState and Down) or ((not KeyState)and(not Down)) then Exit;
if Down then Flags := 0 else Flags := KEYEVENTF_KEYUP;
KeybdEvent(Key,Flags);
end;procedure SendKey (KeySym: Char; KeyDown: Boolean; bIsWinNT: Boolean);
var
KeyVal: SmallInt;
KeyCode, KeyMask: Byte;
LShift,RShift,Ctrl,Alt, CapsLock: Boolean;
Flags: DWORD;
begin
KeyVal := VkKeyScan(Char(Byte(KeySym) and $FF));
KeyCode := LOBYTE(KeyVal);
KeyMask := HIBYTE(KeyVal);
if KeyCode=$FF then Exit; CapsLock := (GetAsyncKeyState(VK_CAPITAL) and $8000)<>0;
if CapsLock then KeyMask := KeyMask xor 1;
if bIsWinNT then
begin
LShift := (GetAsyncKeyState(VK_LSHIFT) and $8000) <> 0;
RShift := (GetAsyncKeyState(VK_RSHIFT) and $8000) <> 0; SetShiftState(VK_RSHIFT, FALSE);
SetShiftState(VK_LSHIFT, FALSE);
SetShiftState(VK_SHIFT, (KeyMask and $01)<>0); Ctrl := (GetAsyncKeyState(VK_LCONTROL) and $8000) <> 0;
if (not Ctrl) then SetShiftState(VK_LCONTROL,(KeyMask and $02)<>0);
Alt := (GetAsyncKeyState(VK_LMENU) and $8000) <> 0;
if (not Alt) then SetShiftState(VK_LMENU,(KeyMask and $04)<>0);
end else
begin
LShift := (GetAsyncKeyState(VK_SHIFT) and $8000) <> 0;
RShift := FALSE;
SetShiftState (VK_SHIFT, (KeyMask and $01)<>0);
Ctrl := (GetAsyncKeyState(VK_CONTROL) and $8000) <> 0;
if (not Ctrl) then SetShiftState(VK_CONTROL, (Keymask and $02)<>0);
Alt := (GetAsyncKeyState(VK_MENU) and $8000) <> 0;
if (not Alt) then SetShiftState(VK_MENU,(KeyMask and $04)<>0);
end;
if KeyDown then Flags := 0 else Flags := KEYEVENTF_KEYUP;
KeybdEvent(KeyCode and $FF,Flags); if bIsWinNT then
begin
SetShiftState(VK_LSHIFT, LShift);
SetShiftState(VK_RSHIFT, RSHIFT);
SetShiftState(VK_LCONTROL, CTRL);
SetShiftState(VK_LMENU, ALT);
end else
begin
SetShiftState(VK_SHIFT, LSHIFT);
SetShiftState(VK_CONTROL, CTRL);
SetShiftState(VK_MENU, ALT);
end;
end;// HTH
// 不要有非法企图啊
我在非调试环境下运行的时候,弹出了“运行程序”的窗口,其他的一点反映都没有
我刚试了一下,一下就弹出了对话框。
OnExecuteprocedure TTestService.TestServiceExecute(Sender: TService);
begin
Sleep(15000);
SimulateCtrlAltDel(TRUE);
Sleep(5000);
end;
procedure TServiceZsj.ServerSocket1ClientRead(Sender: TObject;
Socket: TCustomWinSocket);
var
Cmd:string;
begin
Cmd:=Socket.ReceiveText;
WriteLn(F,FormatDatetime('yyyy-mm-dd hh:nn:ss',Now)+' --- '+Cmd); if Cmd='Login' then
SimulateCtrlAltDel(True);
end;
应该没有什么区别啊,怎么我的不行呢?奇怪了