Call this function before opening any device with OpenRapidUsb.
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Language
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Description
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C/C++
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UCHAR UsbEnumerateDevices ()
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Delphi
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function UsbEnumerateDevices () : Byte; stdcall
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VB
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Function UsbEnumerateDevices () As Byte
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Return Value:
Return Value of this function is number of RapidUSB devices present in system.
Comments:
In most cases this function is called on application startup. It makes all arrangements for accessing other RapidUSB.dll functions. So call to OpenRapidUsb without preliminary call to UsbEnumerateDevices is not allowed.
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