Programming Manual
11
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:
PA60
Summary of Contents for PA-60
Page 1: ...PA 60 Mobile Computer Programming Manual DOC NO UM PA605 02 June 2012 Version 1 0 ...
Page 57: ...Programming Manual 53 Link Library sysapiax lib Link DLL sysapiax dll Device PA60 ...
Page 72: ...Programming Manual 68 Link Library sysapiax lib Link DLL sysapiax dll Device PA60 ...
Page 91: ...Programming Manual 87 Link Library scanapiax lib Link DLL scanapiax dll Device PA60 ...