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EC_VIDEO_SIZE_AR_CHANGED

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The size or aspect ratio of the native video has changed.

Parameters

  • lParam1
    Low-order WORD value is the width in pixels; high-order WORD is the height in pixels.
  • lParam2
    Low-order WORD value is the picture's aspect ratio for the x-axis; high-order WORD is the picture's aspect ratio for the y-axis.

Remarks

This event notification is sent whenever a video renderer detects a change in native video size or a change in the video aspect ratio. The DirectShow renderers detect whether the video has changed size or not prior to sending these events.

For information on how to use this event code, see CBaseFilter::NotifyEvent.

Requirements

DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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Last updated on Wednesday, April 13, 2005

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