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UsbQueryNumberDevices

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Revision as of 21:51, 5 January 2017 by Martini (talk | contribs) (Created page with "==Description== Obtains the total number of USB devices currently attached. ==Syntax== <pre> ulrc=UsbQueryNumberDevices(*pulNumDev) </pre> ==Parameters== ; pulNumDev : ==R...")
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Description

Obtains the total number of USB devices currently attached.

Syntax

ulrc=UsbQueryNumberDevices(*pulNumDev)

Parameters

pulNumDev

Return Code

Errors

 [0000] - NO_ERROR
 [0057] - ERROR_INVALID_PARAMETER
 [1B58] - USB_NOT_INIT (7000)
 [FF13] - ERROR_I24_INVALID_PARAMETER
 [FF1F] - ERROR_GEN_FAILURE
 [FF57] - ERROR_INVALID_PARAMETER

Remarks

Example Code



Related Functions








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