I am trying to interface with a GigE camera (SVS-Vistek svs4021) in Matlab 2009a, but I keep getting InvalidXML errors when I open the camera. My goal is to create a .NET dll wrapper for the IMAQdx controls that will Open, Grab, and Close the camera.
Here's my progress so far:
- Installed Intel PRO/1000 GT card. Installed NI GigE driver.
- Connected to camera in MAX. This worked. I could acquire images, change shutter times, etc.
- Wrote a .NET dll and test program in C#. This also worked. I could acquire images and copy them into an array. See below.
- Loaded .NET dll in Matlab (using NET.addAssembly). I could not get an image. More investigation showed that I was getting error 1074360291, Unable to load camera's XML file.
I admit, writing .NET wrappers for .NET dlls is redundant. I had to do it in the past for a non-.NET dll and now my Matlab code expects it. I tried loading NationalInstruments.CWIMAQdx.Interop.dll directly into Matlab but I had errors running CameraOpen(). I have been trying to avoid using Matlab's Image Acqusition Toolbox. It costs $1000 and I didn't want to rely on the 30 day trial.
Since the C# code works, it must be something simple like incorrect dll referencing or directory. Does anyone have any ideas? Is there some sample Matlab code for doing this?
Thanks,
Ryan
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Here's a C# code snippet from my .NET dll:
public void Connect()
{
CWIMAQdx.Error Status;
Status = CWIMAQdx.OpenCamera("cam0", CWIMAQdx.CameraControlMode.Controller, out sId);
Console.WriteLine("Opening Camera - " + Status.ToString());
MessageBox.Show("Opening Camera - " + Status.ToString());
Status = CWIMAQdx.ConfigureGrab(sId);
Console.WriteLine("Configure Grab - " + Status.ToString());
MessageBox.Show("Configure Grab - " + Status.ToString());
}
(I use the MessageBox so I can see what's happening in Matlab.)
