// video.h

VIDEOPORT_DEPRECATED VIDEOPORT_API PVOID VideoPortGetAssociatedDeviceExtension(
  [in] IN PVOID DeviceObject
);
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (nf-video-videoportgetassociateddeviceextension)

VideoPortGetAssociatedDeviceExtension function

Description

The VideoPortGetAssociatedDeviceExtension function returns the device extension for the parent of the specified device object.

Parameters

`DeviceObject` [in]

Is the device object of a child device.

Return value

VideoPortGetAssociatedDeviceExtension returns a pointer to the device extension of DeviceObject's parent.

Remarks

The miniport driver of a child device can call this function to obtain a description of its parent through the parent's device extension.

View the official Windows Driver Kit DDI reference