USBmicro

Your source for USB electrical device interface products.

  • Home
  • Services
    • Design
    • Contact USBmicro
  • Where to buy…
You are here: Home / Documentation / DLL Commands / DeviceProd

DeviceProd

Return the device product string


Description:

This is a USBm.dll function that returns the Product string from a USB device.

Command Syntax:

true⁄false USBm_DeviceProd( device, string )

The USBm_DeviceProd 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.
string Any valid string expression.

Remarks:

In VB the string passed as an argument must be large enough to hold all the characters that the function places in the string. The best way to achieve this is to set the string to a large size with the String function as in this code:

strStrng = String(250, ” “)

Note: USBm_DeviceProd returns TRUE for a valid device.

VB Declaration (USBmAPI.bas)

Public Declare Function USBm_DeviceProd _
    Lib “USBm.dll” _
        (ByVal device As Byte, _
        ByVal product As String) _
    As Integer

VB Example

Dim strng As String * 255

    USBm_DeviceProd 3, strng
    frmStatus.lstDevices.AddItem “Product: ” & strng

This code fragment shows that strng is loaded with the “product” text of device three. Assuming that the form called “Main” exists with a text box called “Info”, the “product ” information will be made visible to the user.

C Prototype

int USBm_DeviceProd( unsigned char device, char *product );

C Example

RobotBASIC

DID, PID, VID, Mfr, Prod, Serial Number, and Firmware Version are all handled by the RobotBASIC function usbm_DeviceSpecs(ne_DeviceNumber).

usbm_DeviceSpecs(ne_DeviceNumber)

Returns a string that contains information about the device. There are 7 sections separated by the | character. You can use the Extract() function to extract each section separately if desired. The sections are:

DID

PID

VID

Mfr

Prod

Serial Number

Firmware Version

Documentation

Open all | Close all