Code:

{

Retrieves information about the time-out period associated

with the accessibility features.

The pvParam parameter must point to an ACCESSTIMEOUT

structure that receives the information.

Set the cbSize member of this structure and the

uiParam parameter to SizeOf(ACCESSTIMEOUT).

}

// ACCESSTIMEOUT structure

type

TAccessTimeOut = record

cbSize: UINT;

dwFlags: DWORD;

iTimeOutMSec: DWORD;

end;

procedure GetAccessTimeOut(var bTimeOut: Boolean; var bFeedBack: Boolean;

var iTimeOutTime: Integer);

// bTimeOut: the time-out period for accessibility features.

// bFeedBack: the operating system plays a descending

// siren sound when the time-out period elapses and the

// Accessibility features are turned off.

// iTimeOutTime: Timeout in ms

var

AccessTimeOut: TAccessTimeOut;

begin

ZeroMemory(@AccessTimeOut, SizeOf(TAccessTimeOut));

AccessTimeOut.cbSize := SizeOf(TAccessTimeOut);

SystemParametersInfo(SPI_GETACCESSTIMEOUT, SizeOf(AccessTimeOut), @AccessTimeOut, 0);

bTimeOut := (AccessTimeOut.dwFlags and ATF_TIMEOUTON) = ATF_TIMEOUTON;

bFeedBack := (AccessTimeOut.dwFlags and ATF_ONOFFFEEDBACK) = ATF_ONOFFFEEDBACK;

iTimeOutTime := AccessTimeOut.iTimeOutMSec;

end;

// Test it:

procedure TForm1.Button2Click(Sender: TObject);

var

bTimeOut, bFeedBack: Boolean;

iTimeOutTime: Integer;

begin

GetAccessTimeOut(bTimeOut, bFeedBack, iTimeOutTime);

label1.Caption := IntToStr(Ord(bTimeOut));

Label2.Caption := IntToStr(Ord(bFeedBack));

Label3.Caption := IntToStr(iTimeOutTime);

end;

{

Sets the time-out period associated with the accessibility features.

The pvParam parameter must point to anACCESSTIMEOUT structure that

contains the new parameters.

Set the cbSize member of this structure and the uiParam

parameter to sizeof(ACCESSTIMEOUT).

}

{

Setzt Informationen zu den ACCESSEDTIMEOUT-Eigenschaften.

"uiParam" erwartet die Gro?e der ACCESSEDTIMEOUT-Struktur,

die in "pvParam" ubergeben werden muss.

}

procedure SetAccessTimeOut(bTimeOut, bFeedBack: Boolean; iTimeOutTime: Integer);

// bTimeOut: If true, a time-out period has been set for accessibility features.

// bFeedBack: If true, the operating system plays a descending

// siren sound when the time-out period elapses and the

// accessibility features are turned off.

// iTimeOutTime: Timeout in ms

var

AccessTimeOut: TAccessTimeOut;

begin

ZeroMemory(@AccessTimeOut, SizeOf(TAccessTimeOut));

AccessTimeOut.cbSize := SizeOf(TAccessTimeOut);

case bTimeOut of

True: AccessTimeOut.dwFlags := ATF_TIMEOUTON;

False: AccessTimeOut.dwFlags := 0;

end;

if bFeedBack then

AccessTimeOut.dwFlags := AccessTimeOut.dwFlags or ATF_ONOFFFEEDBACK;

AccessTimeOut.iTimeOutMSec := iTimeOutTime;

SystemParametersInfo(SPI_SETACCESSTIMEOUT, SizeOf(AccessTimeOut),

@AccessTimeOut, SPIF_UPDATEINIFILE or SPIF_SENDWININICHANGE);

end;

// Test it:

procedure TForm1.Button1Click(Sender: TObject);

begin

SetAccessTimeOut(True, True, 600000); // 10 min. timeout

end;