// video.h

VIDEOPORT_API LONG VideoPortReadStateEvent(
  [in] IN PVOID  HwDeviceExtension,
  [in] IN PEVENT pEvent
);
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

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

VideoPortReadStateEvent function

Description

The VideoPortReadStateEvent function returns the current state of a given event object: signaled or nonsignaled.

Parameters

`HwDeviceExtension` [in]

Pointer to the miniport driver's device extension.

`pEvent` [in]

Pointer to the event object whose state is to be read.

Return value

VideoPortReadStateEvent returns a nonzero value if the event object is currently in the signaled state. If the event object is in the nonsignaled state, this function returns zero.

Remarks

This function is available in Windows XP and later.

View the official Windows Driver Kit DDI reference