another Backlifht question

[Guest dieter98]

Im using an imate SP3.

The goal is to switch programmatically backlight on and off.

If I use registry settings , it works only after switch device off/on , but not when program is running.

I have this idea to turn on and off:

setting registry value

tell driver that value had changed ( event ??)

simulate a ( unused) keypress to make it work ( with value setted 1 or 99999)

I also want, that device will never fall in sleep modus, all time full powered.

Possible in VB.net ??

[Guest gaplayer26]

I also want, that device will never fall in sleep modus, all time full powered.

Possible in VB.net ??

<{POST_SNAPBACK}>

Hi, to prevent the device from going into standby you could try:

Declare Function SystemIdleTimerReset Lib "Coredll" () As Long 


Do 

.....whateva 


Z=SystemIdleTimerReset 'keep PocketPC on while we loop 


Loop

Here is the original thread:

http://forums.devbuzz.com/m_621/tm.htm

Not sure about the backlight, I've wanted to do the same but have not found a way (yet) as I believe backlight control is OEM specific :cry:

HTH

[Guest Peter Foot]

This technique should work for all Smartphones - it allows you to add a power requirement to hold the backlight on full power while your app executes, when you release the handle it returns to the normal settings:-

http://blog.opennetcf.org/pfoot/PermaLink....09-9e8009e75954

Peter

[Guest gaplayer26]

This technique should work for all Smartphones - it allows you to add a power requirement to hold the backlight on full power while your app executes, when you release the handle it returns to the normal settings:-

http://blog.opennetcf.org/pfoot/PermaLink....09-9e8009e75954

Peter

<{POST_SNAPBACK}>

Is there a way to power off the backlight?

[Guest dieter98]

Is there a way to power off the backlight?

<{POST_SNAPBACK}>

set the registry value for backlight to 0 or 1 before release handle ?

[Guest Peter Foot]

Is there a way to power off the backlight?

<{POST_SNAPBACK}>

Setting the required power level to off (D4) should do it unless other apps have requested a higher power state. Again release the handle when you've finished to restore the normal power policy.

Peter

[Guest dieter98]

Setting the required power level to off (D4) should do it unless other apps have requested a higher power state. Again release the handle when you've finished to restore the normal power policy.

Peter

<{POST_SNAPBACK}>

Does the setting to D4 or other settings than D0 has only effect to backlight or also to other behavior of SP ?

Maybee slower reaction to keypresses , running applications, cpu speed etc ?