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The size or aspect ratio of the native video has changed.
Parameters
- lParam1
- Low-order WORDvalue is the width in pixels; high-order WORDis the height in pixels.
- lParam2
- Low-order
WORDvalue is the picture's aspect ratio for the x-axis;
hight-order
WORDis 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.