Примечание.
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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 AM_WST_DRAWBGMODE enumeration specifies whether the background of the WST frame is opaque or transparent.
Syntax
typedef enum _AM_WST_DRAWBGMODE {
AM_WST_DRAWBGMODE_Opaque,
AM_WST_DRAWBGMODE_Transparent
} AM_WST_DRAWBGMODE, *PAM_WST_DRAWBGMODE;
Constants
AM_WST_DRAWBGMODE_OpaqueThe background is opaque. |
AM_WST_DRAWBGMODE_TransparentThe background is transparent. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Header | iwstdec.h |