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ECUSB_Stream_IsApplicationConnected
The ECUSB_Stream_IsApplicationConnected function reports if an application on the USB host has opened the Windows USB driver that connects to this device.
BOOL ECUSB_Stream_IsApplicationConnected(
   struct ECUSB_Stream_Function *pStreamFunction
);
Parameters
pStreamFunction
A pointer to the struct ECUSB_Stream_Function previously initialized by ECUSB_Stream_Init().
Return value
Returns TRUE if an application has opened the driver on the host