Argox PT-10 Manual do Utilizador descarregar pdf (Página 12)

Display Related Functions

BacklightOn

This function will always turn on or off screen backlight.

DWORD BacklightOn

{

BOOL bOn

}

Parameters

bOn

[in] Flag that indicates whether turn on screen backlight(TRUE) or turn off screen backlight(FALSE).

Return Values

If function succeeds, the return value is

E_FUNC_SUCCEED. If function fails, possible return value are

E_FUNC_ERROR, E_FUNC_PAR_ERROR.

Remarks

After this function turn on or off backlight, the backlight will always on or off. The backlight setting of display

properties in control panel does not work until terminal resets.

Example

DWORD dwResult;

dwResult = BacklightOn(TRUE);

if(dwResult != E_FUNC_SUCCEED)

AfxMessageBox(_T("BacklightOn fail"));

Requirements

OS Versions: Windows CE 5.0 and later.

Header: sysapiax.h

Link Library: sysapiax.lib

Link DLL: sysapiax.dll

Device: PT60

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Argox PT-10 Manual do Utilizador Página 12