TakePicture - Using the internal camera from your application

[tsteward]

Hello Jotha,
Please post English version of your code

Thanks

[jesb4ppc]

Hi Erel, Taximania, Agraham et. al.

I've been trying to make the TakePicture program to run, with no success.

If I use the "process.CloseMainWindows" I get an error with a lot of messages:

System.Diagnostics.Process.EnsureState()
in
System.Diagnostics.Process.get_HasExited()
in
System.Diagnostics.Process.EnsureState()
in
System.Diagnostics.Process.get_ExitCode()
in
Threading.Process.ExitEvent()
in
System.Diagnostics.Process.OnExited()
in
System.Diagnostics.Process.RaiseOnExited()
in
System.Diagnostics.Process.CompletionCallback()
at
TermWaiter.WaitForTerm()

So, I just tried to start anoher process (calc.exe) to chek it, with the same result.

If I use "process.Kill", it works 1 time, and then it says " the camera is in use", but camera doesn't appear on the Programs in execution.

Is it needed to use WM 6, or .net CF 3.5 to make it run, or what am I doing wrong?


I'm using an HTC P3600, with .Net CF 2.0 and WM 5.0

Could you help me with this?

[agraham]

Are you saying that, using Process, you can't start and stop Calc.exe without an error on your device? Process should work fine on WM2003 and later and needs .NET 2.0.

[jesb4ppc]

Hi agraham,

Nice to hear from you again.

Yes, this is what happens. I've test also in a device with WM 6.1 and .Net CF 3.5 with same result.

Calculator starts ok, but only can stop it with "process.Kill", no way with "process.CloseMainWindow"

It's even worse with camera.exe, 'cause camera can only be used the first time.



This is the code:

'Basic threading.
' 8 may 2009.

Sub Globals
tick = 0
prog ="\windows\calc.exe"
End Sub

Sub App_Start
Form1.Show
process.New1
hardware.New1
timer1.Interval = 5000
End Sub

Sub Button1_Click
timer1.Enabled = True
process.Start(prog,"")
End Sub

Sub Timer1_Tick
tick = tick + 1
If tick = 1 Then 'Send Intro
hardware.KeyPress(13)
Else
timer1.Enabled = False
process.CloseMainWindow
tick = 0
End If
End Sub

Thank you for your time.

[agraham]

Try the latest version 1.5 of the http://www.basic4ppc.com/forum/addit...-compiler.html that I have just posted. In an earlier change I tidied up (as I thought) after the Process object according to the Microsoft docs and it appears to have caused this problem due to different behaviour on the desktop and device. Longer explanation in the library thread post #46.

[jesb4ppc]

Hi agraham,

After using version 1.5 of your library, it runs like a charm, with WM 5.0 and .Net CF 2.0 and also with WM 6.1 and CF 3.5.

Reading your post #46 on Threading library for optimising compiler subforum, it seems that once again, Microsoft don't tell the whole truth, or doesn´t write the right documentation.

Fortunaly, you are able to deal with it, and win the challenge.

Once again, thank you very much!

[wm.chatman]

Hello Jotha

I found your Bild Foto App and would like to use it in my TRUIDbase App. Device = MDA Pro.
Question: do you have a Update on your BildFoto Program? Or are there still problems with the Program?
If you do have a functional Bild Foto Program, could I ask you to post the newest Version.
This would really be of great help. Thank you Jotha.

Best regards
William