nf-poscx-poscxopen.md

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NF:poscx.PosCxOpen	PosCxOpen function (poscx.h)	PosCxOpen is called to create an open PosCx library instance. This function initializes all resources it needs to manage a single open instance. It should be called from the driver's EVT_WDF_DEVICE_FILE_CREATE callback.	pos\poscxopen.htm	pos	02/23/2018	PosCxOpen function	PosCxOpen, PosCxOpen function, pos.poscxopen, poscx/PosCxOpen	poscx.h	Poscx.h	Windows															Windows		PosCxOpen poscx/PosCxOpen	APIRef kbSyntax	HeaderDef	poscx.h	PosCxOpen

PosCxOpen function

-description

PosCxOpen is called to create an open PosCx library instance. This function initializes all resources it needs to manage a single open instance. It should be called from the driver's EVT_WDF_DEVICE_FILE_CREATE callback.

-parameters

-param device [in]

A handle to a framework device object that represents the device.

-param fileObject [in]

A handle to a framework file object that identifies the caller associated with the open instance.

-param deviceInterfaceTag [in]

An identifier used to specify the caller's device interface in a multi-function device. For a single-interface device, this value should be 0.

-returns

An appropriate NTSTATUS error code that indicates the open instance completion status.