Yoctopuce Yocto-Display, User Manual

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22. High-level API Reference
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YAPI YAPI.UpdateDeviceList()
yUpdateDeviceList()
Triggers a (re)detection of connected Yoctopuce modules.
js
function yUpdateDeviceList( errmsg )
cpp
YRETCODE yUpdateDeviceList( string& errmsg )
m
+(YRETCODE) UpdateDeviceList :(NSError**) errmsg
pas
function yUpdateDeviceList( var errmsg : string): integer
vb
function yUpdateDeviceList( ByRef errmsg As String) As YRETCODE
cs
YRETCODE UpdateDeviceList( ref string errmsg )
java
int UpdateDeviceList( )
uwp
Task<int> UpdateDeviceList( )
py
def UpdateDeviceList( errmsg =None)
php
function yUpdateDeviceList( &$errmsg )
es
function UpdateDeviceList( errmsg )
The library searches the machines or USB ports previously registered using
yRegisterHub()
, and
invokes any user-defined callback function in case a change in the list of connected devices is
detected.
This function can be called as frequently as desired to refresh the device list and to make the
application aware of hot-plug events.
Parameters :
errmsg a string passed by reference to receive any error message.
Returns :
YAPI_SUCCESS
when the call succeeds.
On failure, throws an exception or returns a negative error code.