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| unit MainForm;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
WTSSessionNotification, StdCtrls, MediaPlayer, Buttons, ShellAPI, Settings,
ExtCtrls;
const
WM_ICONTRAY = WM_USER + 1;
type
TSettingsForm = class(TForm)
OpenDialog: TOpenDialog;
pnl1: TPanel;
InfoLabel: TLabel;
grp1: TGroupBox;
AlarmSoundLabel: TLabel;
lbl1: TLabel;
checkIfLocked: TCheckBox;
Filename: TEdit;
Browse: TBitBtn;
TestSound: TBitBtn;
btn1: TBitBtn;
procedure Minimize(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure TestSoundClick(Sender: TObject);
procedure BrowseClick(Sender: TObject);
procedure checkIfLockedClick(Sender: TObject);
procedure OpenHomepage(Sender: TObject);
procedure btn1Click(Sender: TObject);
private
TrayIconData: TNotifyIconData;
procedure CheckForAC;
protected
procedure WndProc(var Message: TMessage); override;
public
{ Public declarations }
Function SecuredLockWorkStation : Boolean ;
end;
var
SettingsForm: TSettingsForm;
implementation
{$R *.DFM}
{$R WindowsXP.RES}
var
MPlayer: TMPlayer;
mySettings: TSettings;
isLocked: boolean = false;
// vrai si A/C est connecté, faux autrement
function ACConnected: boolean;
var PowerStatus: TSystemPowerStatus;
begin
GetSystemPowerStatus(PowerStatus);
result := (PowerStatus.ACLineStatus = 1);
end;
// handles application.minimize; pas vraiment réduit
// mais caché
procedure TSettingsForm.Minimize(Sender: TObject);
begin
Application.Restore;
self.Hide;
end;
// processes window messages (notification à propos
// changement de satut en alimentation, lock station et
// toute activité sur l'icone)
procedure TSettingsForm.WndProc(var Message: TMessage);
begin
case Message.Msg of
WM_WTSSESSION_CHANGE:
begin
if Message.wParam = WTS_SESSION_LOCK then
isLocked := true;
if Message.wParam = WTS_SESSION_UNLOCK then
begin
isLocked := false;
if MPlayer.isPlaying then
MPlayer.Close;
end;
end;
WM_POWERBROADCAST:
begin
if (isLocked) or (checkIfLocked.checked=false) then
CheckForAC;
end;
WM_ICONTRAY:
begin
case Message.lParam of
WM_LBUTTONDOWN:
begin
if SettingsForm.visible then
SettingsForm.Hide
else
SettingsForm.Show;
end;
WM_RBUTTONUP:
begin
if SettingsForm.visible then
SettingsForm.Hide
else
SettingsForm.Close;
end;
end;
end;
end;
inherited;
end;
Function TSettingsForm.SecuredLockWorkStation : Boolean ;
//Demande le verrouillage de la station. Renvoie TRUE si le verrouillage a été
//déclenché. Renvoie FALSE si l'OS ne supporte pas la fonction, ou si le
//verrouillage est impossible. Donc sécure pour W98.
Type
PLockFunction = Function : Cardinal ; stdcall ;
Var
HDLL : THandle ;
Lock : PLockFunction ;
Begin
Result:=False;
If Win32Platform=VER_PLATFORM_WIN32_NT Then
Begin
HDLL:=LoadLibrary('USER32.DLL');
If (HDLL<>0) Then
Begin
@Lock:=GetProcAddress(HDLL,'LockWorkStation');
If Assigned(@Lock) Then
Result:=(Lock<>0) ;
FreeLibrary(HDLL);
End;
End;
End ;
procedure TSettingsForm.btn1Click(Sender: TObject);
begin
if Application.MessageBox('Cette action va verrouiller votre poste de travail. '
+ #13#10 + 'Si votre session est protégée par mot de passe celui-ci' +
#13#10 + 'vous sera demandé à la réouverture. Vous pouvez' + #13#10 +
'appuyer sur CTRL+ALT_SUPPR puis tapez vos ' + #13#10 +
'informations d''identification pour déverrouiller le poste.',
'Information', MB_OKCANCEL + MB_ICONINFORMATION + MB_TOPMOST) = IDOK then
begin
SecuredLockWorkStation;
end;
end;
procedure TSettingsForm.CheckForAC;
begin
if ACConnected=false then
MPlayer.Play
else
if MPlayer.isPlaying then
MPlayer.Close;
end;
procedure TSettingsForm.FormCreate(Sender: TObject);
begin
SettingsForm.Icon := Application.Icon;
// init media player pour alerte sonore
MPlayer := TMPlayer.Create(self);
// register pour notification alimentation
WTSRegisterSessionNotification(Handle, NOTIFY_FOR_ALL_SESSIONS);
// ajout d'un icone au tray
with TrayIconData do
begin
cbSize := SizeOf(TrayIconData);
Wnd := Handle;
uID := 0;
uFlags := NIF_MESSAGE + NIF_ICON + NIF_TIP;
uCallbackMessage := WM_ICONTRAY;
hIcon := Application.Icon.Handle;
StrPCopy(szTip, 'AC.ALARME - Clic gauche pour les propriétés - clic droit pour fermer.');
end;
Shell_NotifyIcon(NIM_ADD, @TrayIconData);
// lire le setting du registre
mySettings := TSettings.Create;
mySettings.LoadSettings(ExtractFilePath(ParamStr(0)) + 'AlarmeAC.mp3');
checkIfLocked.checked := mySettings.checkIfLocked;
if FileExists(mySettings.soundfile) then
begin
Filename.text := ExtractFilename(mySettings.Soundfile);
MPlayer.Filename := mySettings.Soundfile;
end else
begin
MessageDlg('Fichier ' + mySettings.Soundfile + ' non trouvé.'+ #13#10+
'SVP Choisir un fichier audio à partir des propriétés.', mtError, [mbOk], 0);
SettingsForm.Show;
end;
end;
// enlève le tray quand le programme ferme
procedure TSettingsForm.FormDestroy(Sender: TObject);
begin
Shell_NotifyIcon(NIM_DELETE, @TrayIconData);
end;
procedure TSettingsForm.TestSoundClick(Sender: TObject);
begin
if MPlayer.isPlaying then
MPlayer.Close
else
MPlayer.Play;
end;
procedure TSettingsForm.BrowseClick(Sender: TObject);
begin
if OpenDialog.Execute then
begin
Filename.Text := ExtractFilename(OpenDialog.Filename);
MPlayer.Filename := OpenDialog.Filename;
// mplayer.open validé si le fichier peut être joué
// sinon message
MPlayer.Open;
MPlayer.Close;
end;
end;
procedure TSettingsForm.checkIfLockedClick(Sender: TObject);
begin
mySettings.checkIfLocked := checkIfLocked.checked;
end;
end. |
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