IVideoProcAmp::put_DigitalMultiplier method (vidcap.h)
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 put_DigitalMultiplier method sets the camera's digital zoom level.
Syntax
HRESULT put_DigitalMultiplier(
[in] long Value,
[in] long Flags
);
Parameters
[in] Value
Specifies the digital zoom multiplier.
[in] Flags
Zero or more flags. See VideoProcAmpFlags. If the VideoProcAmp_Flags_Auto flag is used, the Value parameter is ignored and the camera sets the default value.
Return value
Returns an HRESULT value.
Remarks
For more information about the digital zoom multiplier, see IVideoProcAmp::get_DigitalMultiplier.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP with SP2 [desktop apps only] |
| Minimum supported server | Windows Server 2003 R2 [desktop apps only] |
| Target Platform | Windows |
| Header | vidcap.h |