System-wide timer

[Noble]

Hello all,
I am working on an application in VB.Net for the .NetCF. We are using
VS2003. The application needs to have a system wide timer feature. We are
using a kiosk program to make our application the only one the user can use.

We want the ppc to watch and see when there has been no activity for a
period of 2 minutes and then at that time run some routines.

How is the best way to achieve this in VB.Net code?

Thanks in advance,
Noble

 

[Chris Tacke, eMVP]

I'll again suggest that you use an IMessageFilter implementation and the
OpenNETCF ApplicationEx Run method. In the filter, create a timer that you
reset whenever a keypress/mouse event occurs. When the timer fires, then
you've gotten the timeout.

I know an example was posted here before. I think Paul Tobey or Peter Foot
posted it. A search for MessageFilter and Timer may get you there.

 

[Noble]

Thanks Chris.
I have been having trouble getting the OpenNETCF control to work correctly
for me. Some kind of compile error message comes up when I am compiling my
program with the control in it. I cannot remember what it says but I know
when I remove the control everything works fine. I will try again and see
what happens.

 

[Chris Tacke, eMVP]

Let me know and we'll get you up and running.

 

[Noble]

Chris,
This is what I get when I try and compile my program:

Error: The dependency 'mscorlib, Version=1.0.5000.0, Culture=neutral,
PublicKeyToken=969db8053d3322ac' in project 'FarmN-Beta' cannot be copied to
the run directory because it would conflict with dependency 'mscorlib,
Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.


Error: The dependency 'mscorlib, Version=1.0.5000.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089' in project 'FarmN-Beta' cannot be copied to
the run directory because it would conflict with dependency 'mscorlib,
Version=1.0.5000.0, Culture=neutral, PublicKeyToken=969db8053d3322ac'.


C:\SimpleN\DotNet\FarmN-Beta\frmMultiTicket.vb(376): 'Player' is ambiguous
in the namespace 'OpenNETCF.Multimedia.Audio'.


C:\SimpleN\DotNet\FarmN-Beta\frmVoiceTicket.vb(216): 'Recorder' is ambiguous
in the namespace 'OpenNETCF.Multimedia.Audio'.


The last two errors are generated because I have an older Multimedia version
of OpenNETCF running. Not the entire OpenNETCF just the multi-media portion.
I got it when you could just download that portion by itself.

Please help and thanks in advance,
Noble

 

[Chris Tacke, eMVP]

It's a AB-specific dependency confusion with the SDF 1.0. I think 1.1 fixes
this issue, but for 1.0 see this topic for infomation on correcting it:

www.opennetcf.org/forums/topic.asp?topic_id=1372

 

[Noble]

This messge topic is about a serial foot switch or something. Are you sure
it is the correct one??

 

[Chris Tacke, eMVP]

Whoops, topic 1371, not 1372:

http://www.opennetcf.org/forums/topic.asp?TOPIC_ID=1371

 

[Noble]

Ok, here is the last error that I am getting:
C:\SimpleN\DotNet\FarmN-Beta\frmVoiceTicket.vb(473): Value of type
'System.UInt16' cannot be converted to 'Short'.

???
Thanks in advance...

 

[Chris Tacke, eMVP]

Looks like you're trying to pass a Short (signed 16-bit number) to a method
that's looking for a UInt16 (unsigned 16-bit number) on line 473 of
frmVoiceTicket.vb

 

[Noble]

Yup! You are right. In the old MultiMedia Code it worked like this:

Private recorder As OpenNETCF.Multimedia.Audio.Recorder

Private seconds As UInt16 = Convert.ToUInt16("5")

recorder.RecordFor(filestream, seconds)



Has this format changed??

 

[Chris Tacke, eMVP]

Looking at the docs at www.opennetcf.org/library I see it takes a short. It
was probably changed to make it CLS-compliant so you don't have to do the
ungainly conversion.

 

[Chris Tacke, eMVP]

I've got it working in VB. Took me longer to figure out the VB syntax than
to actually implement it, but it's done. You can find it here:

http://wiki.opennetcf.org/ow.asp?AppIdleTimer

 

[Noble]

A Big Thank You Chris!! I have OpenNETCF up and running now I can tackle
the timer issue.

Thanks again for all your help Chris!!!

Noble

Looking at the docs at www.opennetcf.org/library I see it takes a short. It
was probably changed to make it CLS-compliant so you don't have to do the
ungainly conversion.

--
Chris Tacke, eMVP
Co-Founder and Advisory Board Member
www.OpenNETCF.org
---
---
Principal Partner
OpenNETCF Consulting
www.OpenNETCF.com

Yup! You are right. In the old MultiMedia Code it worked like this:

Private recorder As OpenNETCF.Multimedia.Audio.Recorder

Private seconds As UInt16 = Convert.ToUInt16("5")

recorder.RecordFor(filestream, seconds)



Has this format changed??





Are
you cannot cannot

'Player'

is 'Recorder'

control

to

work
correctly
for me. Some kind of compile error message comes up when

I
am

compiling
my
program with the control in it. I cannot remember what

it
says

 

[Noble]

That did the trick!!! Thanks a million!! I will give credit in the program
for your efforts.

Thanks again,
Noble

I've got it working in VB. Took me longer to figure out the VB syntax than
to actually implement it, but it's done. You can find it here:

http://wiki.opennetcf.org/ow.asp?AppIdleTimer

--
Chris Tacke, eMVP
Co-Founder and Advisory Board Member
www.OpenNETCF.org
---
---
Principal Partner
OpenNETCF Consulting
www.OpenNETCF.com

Yup! You are right. In the old MultiMedia Code it worked like this:

Private recorder As OpenNETCF.Multimedia.Audio.Recorder

Private seconds As UInt16 = Convert.ToUInt16("5")

recorder.RecordFor(filestream, seconds)



Has this format changed??





Are
you cannot cannot

'Player'

is 'Recorder'

control

to

work
correctly
for me. Some kind of compile error message comes up when

I
am

compiling
my
program with the control in it. I cannot remember what

it
says