EC_VIDEO_SIZE_CHANGED
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The native video size has changed.
Parameters
-
lParam1
-
(DWORD) Low-order WORD specifies the new width, in pixels; high-order WORD specifies the new height, in pixels.
-
lParam2
-
Zero.
Default Action
None.
Remarks
Video renderers may send this event if they detect a change in the native video size.
The Video Mixing Renderer 7 (VMR-7) and the Video Mixing Renderer 9 (VMR-9) send this event in windowed mode, but not in windowless mode or renderless mode. For more information about windowed mode in the VMR, see Video Rendering.
Requirements
| Requirement | Value |
|---|---|
| Header |
|