{
The SetSuspendState function suspends the system by shutting power down.
Depending on the Hibernate parameter,
the system either enters a suspend (sleep) state or hibernation.
Syntax:
}
function SetSuspendState(
Hibernate: Boolean,
ForceCritical: Boolean,
DisableWakeEvent: Boolean);
{ Parameters:
Hibernate: If this parameter is TRUE, the system hibernates.
If the parameter is FALSE, the system is suspended.
ForceCritical: If this parameter is TRUE, the system suspends operation immediately;
if it is FALSE, the system broadcasts a PBT_APMQUERYSUSPEND event to
each application to request permission to suspend operation.
DisableWakeEvent: If this parameter is TRUE, the system disables all wake events.
If the parameter is FALSE, any system wake events remain enabled.
Windows NT/2000/XP: Included in Windows 2000 and later.
Windows 95/98/Me: Included in Windows 98 and later.
}
var _SetSuspendState: function (Hibernate, ForceCritical, DisableWakeEvent: BOOL): BOOL stdcall = nil;
function LinkAPI(const module, functionname: string): Pointer; forward;
function SetSuspendState(Hibernate, ForceCritical,
DisableWakeEvent: Boolean): Boolean; begin
if not Assigned(_SetSuspendState) then @_SetSuspendState := LinkAPI('POWRPROF.dll', 'SetSuspendState'); if Assigned(_SetSuspendState) then Result := _SetSuspendState(Hibernate, ForceCritical,
DisableWakeEvent) else Result := False; end;
function LinkAPI(const module, functionname: string): Pointer; var hLib: HMODULE; begin hLib := GetModulehandle(PChar(module)); if hLib = 0 then hLib := LoadLibrary(PChar(module)); if hLib <> 0 then Result := getProcAddress(hLib, PChar(functionname)) else Result := nil; end;
// Example Call:
// Beispielaufruf:
procedure TForm1.Button1Click(Sender: TObject); begin SetSuspendState(True, False, False); end;