IAMDroppedFrames::GetDroppedInfo method (strmif.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 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 |
|---|---|
|
Success. |
|
Invalid argument; the lSize parameter must by greater than zero. |
|
Not implemented. |
|
NULL pointer argument. |
|
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 |