共用方式為

IVideoProcAmp::getRange_DigitalMultiplier

  • 發行項
 
Microsoft DirectShow 9.0

IVideoProcAmp::getRange_DigitalMultiplier

This topic applies only to Windows XP Service Pack 2 and later.

The getRange_DigitalMultiplier method returns the range of digital zoom levels supported by the camera.

Syntax

  HRESULT getRange_DigitalMultiplier(
  long*  pMin,
  long*  pMax,
  long*  pSteppingDelta,
  long*  pDefault,
  long*  pCapsFlag
);

Parameters

pMin

[out]  Receives the minimum digital zoom level.

pMax

[out]  Receives the maximum digital zoom level.

pSteppingDelta

[out]  Receives the smallest step between settings.

pDefault

[out]  Receives the default digital zoom level.

pCapsFlag

[out]  Receives one or more flags. See VideoProcAmpFlags.

Return Values

Returns an HRESULT value.

Requirements

Header: Include Vidcap.h.

Library: None.

See Also