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CsTI - CSharp Touchlib Interface

owenhindley

Posted: 22 April 2008 08:27 AM

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Thanks donovan, will give them a try now…

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donovan

Posted: 22 April 2008 06:32 PM

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owenhindley:

rather download the newer source-> http://www.whitespaced.co.za/ftir/CsTI08_newsrc.zip
here are bins but I doubt if they will work on vista (can’t test on vista because I don’t have it) http://www.whitespaced.co.za/ftir/CsTI08_newbins.zip

you can now do CsTI.RecaptureBackground() which I believe is what you need.
also has an event that gets raised for every frame.
and it no longer gives me any problems (like AccessViolation when shutting down).

so let me know if these bins work. and if the source still gives problems

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Daniel D

Posted: 23 April 2008 12:15 AM

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donovan:
Could you please add StopScreen() method? Is it also possible to have a parameter of starting without configuration windows?

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entity

Posted: 23 April 2008 03:25 AM

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Is’nt that the SetDebugState=false; or something like it somewhere?

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owenhindley

Posted: 23 April 2008 04:05 AM

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donovan: Thanks for your efforts on this - the new bins work well in Vista, including the RecaptureBackground(). Haven’t had a chance to properly look at the source yet, will try that now.

One problem though - if the camera is pointing at something that provides an input (at the moment it’s pointing at the flourescent light above my desk), Touchlib freezes immediately after performing a recaptureBackground(). If the camera’s lens is covered, the recapture works fine.

Could this be due to a large number of touch Up(/Down?) events being fired by Touchlib after a recapture, and something along the chain not being able to handle it?

EDIT:
setting up configapp properly (increasing Rectify value in particular) reduces number of false inputs, touchlib much more stable now.

Tried to use source, initial build compiled OK but still produces AccessViolation error in the same place on excecution :( Will try rebuilding Touchlib & re-compiling CsTI using that..

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donovan

Posted: 23 April 2008 08:51 AM

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i also found it freezing when pointing at a fluorescent light without any calibration. but after calibrating it, it works fine.

the new bins/src include the following:

CsTI.stopScreen() will stop touclib
CsTI.startScreen now takes a parameter, false starts without video output windows and true starts with.

The bins also work with touchlib beta 2. I’ll update the svn once I verify it includes all the new stuff for beta 2.

bins: http://www.whitespaced.co.za/csti/CSTItouchlib_beta2bins.zip
source: http://www.whitespaced.co.za/csti/CSTItouchlib_beta2src.zip

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owenhindley

Posted: 28 April 2008 09:01 AM

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donovan, again many many thanks for the work you’ve put in on CsTI! It’s been a massive help.

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donovan

Posted: 28 April 2008 01:35 PM

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only a pleasure sir! glad that you find it useful!

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tsa87

Posted: 30 April 2008 08:32 AM

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I didn’t have the time, but is a mouse emulator included in this version? Because if it isnt, this could be done by combinating these two methods, I will post an example on how to use them if someone needs further explanation…

[DllImport("user32.dll")]
static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint dwData,  UIntPtr dwExtraInfo);

With:

  public enum MouseEventFlags
  {
    LEFTDOWN   = 0x00000002,
    LEFTUP     = 0x00000004,
    MIDDLEDOWN = 0x00000020,
    MIDDLEUP   = 0x00000040,
    MOVE       = 0x00000001,
    ABSOLUTE   = 0x00008000,
    RIGHTDOWN  = 0x00000008,
    RIGHTUP    = 0x00000010
  }

and

[DllImport("user32.dll")]
static extern bool SetCursorPos(int X, int Y);

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donovan

Posted: 01 May 2008 08:18 AM

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I seriously doubt if I will add mouse emulation to the wrapper because mouse emulation is application specific. So for those that need to emulate the mouse you’ll have to do that via your own application.

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tsa87

Posted: 01 May 2008 08:23 AM

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Seems fair to me, I’ll Write an .NET Wrapper that enables mouse emulation from X,Y Coordinates en the Touchdownevent

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donovan

Posted: 01 May 2008 08:58 AM

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Why would you do mouse emulation through .NET? I think it would be better to just run a c++ mouse emulation app and then start the .NET app as normal. Mouse emulation doesn’t need to go through .NET.

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AdmiralUD

Posted: 01 May 2008 09:30 PM

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If mouse emulation is really important, you can check out my framework that I posted in this forum that includes single touch mouse emulation...not sure how you would emulate multitouch with a mouse heh.

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donovan

Posted: 03 May 2008 07:12 AM

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nice work admiral!

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Calvin Muller

Posted: 14 May 2008 06:17 AM

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hi there, donovan i wonder if you could help me

I am trying to use your CSti Wrapper for the TouchLib but i am just wondering how do i implement it and what files do i need in the bin directory of my application?

I have reference the CsTI.dll, but the TouclibWrapper.dll won’t allow me to reference it and so when i do this..

CsTI oCsTI = new CsTI();

oCsTI.startScreen(true);

I get an error saying Error
1 ‘TouchlibWrapper.CsTI.CsTI()’ is inaccessible due to its protection level C:\Documents and Settings\Calvin Muller\Local Settings\Application Data\Temporary Projects\TouchMeMulti\Form1.cs 21 26 TouchMeMulti

I have managed to get the application running by copying like alot of files into the bin directory.. I was wondering how it is possible to use this in a windows forms application and when i load the form up and startScreen and add a few event handlers the form just never appears…

Thanks

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