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IAMDroppedFrames::GetDroppedInfo method (strmif.h)

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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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetDroppedInfo method retrieves an array of frame numbers that were dropped.

Syntax

HRESULT GetDroppedInfo(
  [in]  long lSize,
  [out] long *plArray,
  [out] long *plNumCopied
);

Parameters

[in] lSize

Specifies the size of the array.

[out] plArray

Pointer to an array of size lSize, allocated by the caller. The method fills the array with the frame numbers of the first lSize frames that were dropped, up to a maximum number that is device-dependent.

[out] plNumCopied

Pointer to a variable that receives the number of items returned in plArray. This number might be less than the value of lSize.

Return value

Returns an HRESULT value. Possible values include the following.

Return code Description
S_OK
 Success.
E_INVALIDARG
 Invalid argument; the lSize parameter must by greater than zero.
E_NOTIMPL
 Not implemented.
E_POINTER
 NULL pointer argument.
E_PROP_ID_UNSUPPORTED
 Not supported by this device.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header strmif.h (include Dshow.h)
Library Strmiids.lib

See also

Error and Success Codes

IAMDroppedFrames Interface