Issue:
Matrox framegrabber card isn't being detected by Matlab.
I do know it can be detected by Matlab IMAQ toolbox as it has been once so far using matroxlist, but both before, and after this, I am unable to obtain a connection to the card on Matlab using matroxlist or imaqfind.
Error Messages Received
matroxlist:
Support Package for Matrox Hardware has not been installed. Open Add-Ons Explorer to install the Matrox Hardware Support Package.
imaqfind:
ans =
[]
imaqhwinfo:
struct with fields:
InstalledAdaptors: {'matrox'}
MATLABVersion: '9.2 (R2017a)'
ToolboxName: 'Image Acquisition Toolbox'
ToolboxVersion: '5.2 (R2017a)'
What's been tested:
Using Matrox Intellicam, I know that the card itself is functioning as expected.
I've uninstalled and reinstalled Matlab (full reinstall including toolboxes).
I've uninstalled the hardware adaptor for Matrox, several times, and several times tried various 'tricks', including deleting the folder it was housed in, trying to force it (unsuccessfully) to install to a different directory, and finally what did work, just once, was deleting that directory and the folder after uninstalling the adaptor from Matlab. But that worked just once or twice, and the behavior started again.
I've rebooted the system after each of these steps, also.
Additional Info
Since writing this, I've reproduced getting matroxlist to work. But, have noticed that it only functions while Matlab is initially open, and then fails. I've done this twice so far, just to double check, note that the process is pretty much the same with few differences than the linked answer below. I can get Matlab to recognize the matrox card, it will just lose that recognition every time I close out of Matlab, to where I will need to perform the same steps before every time I open Matlab.
I've also tried the answer in this link, as well. Behavior is the exact same as before. 
