read image into cwimaqviewer c# / . net

[kumi]

hi

i have a directshow camera in my c# applikation . i just want to display single shot images into CWIMAQViewer with very high refresh rate (so it looks like smooth stream)

the image i get from the camera is a jpeg now i make this like following:

1.  get .jpeg image from camera
2. save it to disk
3. read it into the CWIMAQViewer

the problem i have here: this process takes too long for a smooth stream

now my question:

is it possible to load images with jpeg Format into CWIMAQViewer directly

i know there are some "copyImageToClipboard" functions, but this seems very professional too me ..

anyone has an idea?

thanks

[wbadry]

hi, You touched a key problem. I used to perform what you actually do for several projects. I won't say that it is a tidy process, but it just did the job. The good news is starting from Vision Acquisition 2009, DirectShow cams will be supported using NIIMAQdx.

[kumi]

is there no other option to cast an Image into a CWIMAQImage?

[wbadry]

Interesting topic kumi. I'll personally spend the next weekend searching for it.

[wbadry]

Hi Kumi,

I created a simple class that you can use to directly to load any Image Object (Bitmap, PNG, WMF... etc) into IMAQ Viewer. I've enclosed a C# example as the language of your preference.An implicit casting is performed, so you may test it and tell me the results.

[nb1forxp]

Hello Waleed,

I'm really stuck and would like to use your class to load a bitmap to a viewer.  Unfortunately, I can't get it to compile.  Would you be able to convert it fully to C# and make sure it compiles?

Also, do you know how I can get a copy of the beta version of VDM 2009?  I'm using version 8.6 right now, but everything is very frustrating.

Thanks,

Neville 

[nb1forxp]

Hello Waleed,

Well, I was able to get it to compile, though it kept complaining at me regarding a dll conflict between 8.6.4 and 8.6.0.

Do you know where I can get the VDM 2009 beta?

Thanks,
Neville 

[wbadry]

Hello nb,

Sorry for late response. Suddenly alerts doesn't work with me. I'm glad you could've used it. In regard to VDM 2009, I'm afraid that the Beta program is closed. It is only a couple of months just like my mate muks said before the final release. in the mean time, I'll be happy to help you as much as I can. 

[nb1forxp]

Hello Waleed,

Thanks for the response.  Do you know when VDM 2009 is scheduled to be released?  I've moved my main question to this post in the event you have any input to offer:

http://forums.ni.com/ni/board/message?board.id=200&message.id=23855

Thanks,
Neville