DeviceVID

Online Development Notebook > Index > ODN > USBm DLL Programming > DLL Commands > DeviceVID

DeviceVID

Description:

This is a USBm.dll function that returns the Vendor ID from a USB device.

Command Syntax:

number USBm_DeviceVID(device)

The USBm_DeviceVID function syntax has these parts:

Part	Description
device	Valid device from 0 to the maximum number of devices found (minus 1) . Any other number results in a FALSE return.

Remarks:

Note: USBm_DeviceVID returns FALSE for an invalid device, otherwise the return value is the device VID

VB Declaration (USBmAPI.bas)

Public Declare Function USBm_DeviceVID _
    Lib "USBm.dll" _
        (ByVal device As Byte) _
    As Integer

VB Example

Dim result As Integer

result = USBm_DeviceVID

This code fragment shows that result is loaded with the VID of the device, or with FALSE if the device does not exist.

C Example

-TBD-

Hardware: U401 USB Interface U421 USB Interface

Programming: USBm DLL Programming Download Files

Application Notes: U4x1 Application Notes Misc Applications and Information FAQ