Hello,

I have a HP iPAQ 2490 with Windows Mobile 2005 OS. It seems that
Microsoft has changed the way you adjust brightness programmatically.

On PocketPC 2003 you changed system registry:
[HKEY_CURRENT_USER\ControlPanel\Backlight]
"ACBrightNess"
"BrightNess"

Then...

SystemParametersInfo(WM_SETTINGCHANGE, 0, 0, SPIF_UPDATEINIFILE);

//Notify close event...
HANDLE hEvent = CreateEvent(NULL, FALSE, FALSE,
T("BackLightChangeEvent"));PulseEvent(hEvent);
CloseHandle(hEvent);

But this has changed in the Windows Mobile 2005 OS.

Anyone who knows how this is done?

Regards