Arrington Plugin

[farshizzo]

ctypes is 3rd party plugin for Python. You can find a tutorial for the plugin here:
http://python.net/crew/theller/ctypes/tutorial.html

[Uttama_vizard]

Hello,

Thanks for the suggestion. I have downloaded the ctypes.

When, I am writing:

from ctypes import *

There occurs no error.

The tutorial says....

libc = cdll.msvcrt
libc.printf

I am getting <_FuncPtr object at 0x00B80B70>

So, in my case....do I use.....?

vpx = ......msvcrt
vpx.printf

Any suggestions.....actually, I want to access vpx.dll and insert the other features such as coordinates of both the eye gazes...I hope my question is clear...

In fact, I am little confused regarding the approach to be used.....and not sure whether I am going the correct way.

Any suggestions would be really appreciated.

Thanks for giving your valuable time.

[Uttama_vizard]

Hello,

Any further suggestion regarding ctypes would be really appreciated. I have given my problem...in the last posting.

If required, I will clarify further.

Thanks

Uttama

[farshizzo]

I'm not very familiar with ctypes, so I cannot help you that much. I think the important thing is that you are using the correct function name. In your example, you are using printf, which is not a function exported by the vpx.dll

[Uttama_vizard]

Hello,

Sorry for the delay in replying.

How do I know which are allowed and which are not allowed in vpx.dl? Like...printf is not allowed in vpx.dll.

It would be really good, if I have the .cpp or .c file corresponding to the vpx.dll, so that I can put some thinking how to modify it so as to incorporate the tracking of the other eye?

Thanks

Uttama

[farshizzo]

You will need to obtain the vpx API from Arrington, which will contain a header file defining all the functions exported by the dll.