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Thread: Slow DLL Access on some PCs

  1. #1
    Join Date
    Feb 2012
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    4

    Slow DLL Access on some PCs

    I added the 'TIS.Imaging.ICImagingControl31' assembly to my C# project references. On my laptop, whenever the program accesses any of the members of TIS.Imaging there is a long delay (~5 seconds) before it returns from a call or lets me read a field. However, on my desktop computer there is no such delay. My desktop is Win7 pro, and the laptop is Win7 home premium. Both are 64 bit. I've removed and re-added the assembly a couple of times, and that hasn't helped. Any ideas?

  2. #2
    Join Date
    Jan 2003
    Location
    Bremen, Germany
    Posts
    4,204

    Re: Slow DLL Access on some PCs

    Hello Steve,

    First of all sorry for the late approvement of your post.

    In common, there should be no delay. I would like to know, whether the delay happens, if no camera is connected.

    Do you have a sample field, which takes long to query?

    In case your laptop has a webcam, you may disable it in the Device Manager and try again. You may also check, whether there is a file "Ctflt*.sys" used in the camera drivers. This filter driver file can cause tons of trouble.
    Best regards
    Stefan
    IC Imaging Control Support

  3. #3
    Join Date
    Feb 2012
    Posts
    4

    Re: Slow DLL Access on some PCs

    Quote Originally Posted by Stefan Geissler View Post
    Hello Steve,

    First of all sorry for the late approvement of your post.

    In common, there should be no delay. I would like to know, whether the delay happens, if no camera is connected.

    Do you have a sample field, which takes long to query?

    In case your laptop has a webcam, you may disable it in the Device Manager and try again. You may also check, whether there is a file "Ctflt*.sys" used in the camera drivers. This filter driver file can cause tons of trouble.

    I've investigated a bit more, and it seems like the delay is mainly when opening/changing devices and querying/saving the settings (white balance, exposure, etc.) The same delay seems to exist in your IC Capture 2.2 also.

    I tried disabling the webcam in device manager, but that didn't stop the delay. I looked for a Ctflt*.sys file and I don't see it anywhere, but I'm not sure where I should be looking.

  4. #4
    Join Date
    Jan 2003
    Location
    Bremen, Germany
    Posts
    4,204

    Re: Slow DLL Access on some PCs

    Hello Steve,

    If it runs fine on your desktop computer and slow on your laptop, then you may check, what is different on your laptop. May be a virus scanner or what ever. This is very hard to guess for me.
    Best regards
    Stefan
    IC Imaging Control Support

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