ICameraControl::put_Exposure 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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_Exposure method sets the camera's exposure time.

Syntax

HRESULT put_Exposure(
  [in] long Value,
  [in] long Flags
);

Parameters

[in] Value

Exposure time, in log base 2 seconds. If the value is n, the exposure time is 2^n seconds.

[in] Flags

Zero or more flags. See CameraControlFlags. If the CameraControl_Flags_Auto flag is used, the Value parameter is ignored and the camera sets the default value.

Return value

Returns an HRESULT value.

Requirements

See also

Error and Success Codes

ICameraControl Interface