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PosCxOpen function (poscx.h)

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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.

Syntax

NTSTATUS PosCxOpen(
  [in] WDFDEVICE     device,
  [in] WDFFILEOBJECT fileObject,
  [in] ULONG         deviceInterfaceTag
);

Parameters

[in] device

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

[in] fileObject

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

[in] deviceInterfaceTag

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.

Return value

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

Requirements

Requirement Value
Target Platform Windows
Header poscx.h (include Poscx.h)