Casio DT-X8 Series Bedienungsanleitung PDF herunterladen (Seite 56)

3.35 SysDisplayOn

This function turns on the screen on the terminal that is being in the virtual OFF mode.

Calling Sequences

[C++]

DWORD SysDisplayOn( )

[Visual Basic]

Public Shared Function SysDisplayOn() As Int32

[C#]

public static Int32 SysDisplayOn()

Parameters

None

Return Values

TRUE : Normal end

FUNCTION_UNSUPPORT : Unsupported error

Note:

Follow the steps below to set the terminal in the virtual OFF mode.

1. Set the virtual OFF mode effect with SysSetVirtualOffMode function.

7. Set "Turning off the power with Power key" effect with SysDisablePowerOff

function.

8. Once the above settings have been made, the power driver will issue either one of the

messages below depending on the terminal's condition when the Power key is pressed

(the same messages that are issued in ordinary power ON/OFF procedures.)

During the power is kept turned off;

• PBT_APMSUSPEND(0x0004) from WM_POWERBROADCAST(0x0218)

During the power is kept turned on;

• PBT_APMRESUMESUSPEND(0x0007) from WM_POWERBROADCAST

9. Using SysSetVirtualOffMode and SysSetAllKeyLock functions, turn off or on

the screen and set all key inputs disabled when either one of the messages above (in step

3) is issued. The Multi key and Trigger keys cannot be set disabled with

SysSetAllKeyLock function.

10. To set the Multi key disabled, set any key not used by the application to the Multi key

with SysSetNormalUserDefineKey function and turn off the click sound. If a reset is

performed during the virtual OFF mode, the setting of the Multi key is remained the

same with the one set during the virtual OFF mode. To avoid this, set the Multi key, if

the virtual OFF mode is used, so that the default setting must be set to it when the

application is invoked. To set the trigger keys disabled, perform the close process for the

laser scanner or C-MOS imager.

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Casio DT-X8 Series Bedienungsanleitung Seite 56