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==Description==
Obtains the total number of USB devices currently attached.
Obtains the total number of USB devices currently attached.


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==Return Code==
==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


===Errors===
[[Category:Stub]]
 
  [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==
<pre>
</pre>
 
==Related Functions==
 
[[Category:USBCalls]]

Revision as of 08:47, 12 January 2017

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
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