User`s guide

Troubleshooting Windows Video Hardware
Troubleshooting Windows Video Hardware
In this section.. .
“Troubleshooting Windows Video Devices” on page 10-23
“Determining the Microsoft DirectX Version” on page 10-24
Troubleshooting Windows Vi deo Devices
If you are having trouble using Image Acquisition Toolbox with a supported
Windows video acquisition device, foll ow these recommended troubleshooting
steps:
1 Verify that your image acquisition hardware is functioning properly.
For Windows devices, run the application that came with y our hardware
and verify that you can receive live video.
You can also v
erify your hardware by running the M icrosoft image capture
application
,
AMCap.exe, which is included with the toolbox distribution. Go
to the
matlab
root\toolbox\imaq\imaq
directory, where matlabroot is
your top-le
vel installation directory, and double-click
AMCAP.exe.
If you can start the utility, run the utility, and close the utility without
encountering any errors, the toolbox should be able to operate with your
image acquisition device. If you encounter errors, resolve them before
attempting to use the toolbox with the device.
2 If your hardware is functioning properly, verify that you are using hardware
device drivers that are compatible with the toolbox.
• Find out the driver version you are using on your system. Image
Acquisition Toolbox is only compatible with WDM (Windows Driv er
Model) or VFW (Video for Windows) drivers. Contact the hardware
manufacturer to determine if the driver provided with your hardware
conforms to these driver classes.
• Ve rify that the version is compatible with Image Acquisition Toolbox.
For the correct driver information, check the list of supported drivers on
the Image Acquisition Toolbox prod uct pag e at the MathWorks We b site
(
www.mathworks.com/products/imaq).
10-23