Kbase P102427: Can a 4GL program communicate directly to a USB device?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
03/09/2008 |
|
Status: Verified
GOAL:
Can a 4GL program communicatee directly to a USB device?
FACT(s) (Environment):
All Supported Operating Systems
OpenEdge Category: Language (4GL/ABL)
Progress 9.x
OpenEdge 10.x
FIX:
It is not possible to directly communicate to a USB device from a 4GL program. Manufacturers of USB devices typically provide device drivers along with either DLL or ActiveX interfaces to the device drivers. It is possible to use the manufacturers DLL and/or ActiveX interfaces to communicate from the 4GL to the device.