IEnumMediaTypes::Next (Compact 2013)
3/26/2014
This method retrieves the specified number of items in the enumeration sequence.
Syntax
HRESULT Next(
ULONG cMediaTypes,
AM_MEDIA_TYPE** ppMediaTypes,
ULONG* pcFetched
);
Parameters
- cMediaTypes
[in] Number of media types to place.
- ppMediaTypes
[out] Array in which to place the pointers to the next media type.
- pcFetched
[out] Actual count passed.
Return Value
Returns an HRESULT value that depends on the implementation.
HRESULT can be one of the following standard constants or other values not listed.
Value |
Description |
|---|---|
E_FAIL |
Failure. |
E_POINTER |
Null pointer argument. |
E_INVALIDARG |
Invalid argument. |
E_NOTIMPL |
Method is not supported. |
S_OK or NOERROR |
Success. |
Remarks
To use this method, pass an array of pointers to media types.
If you want only a single media type, you can pass a pointer to a media type pointer in place of an array of media type pointers.
The interface allocates the necessary AM_MEDIA_TYPE structures and initializes them with the variable format block.
Free each media type by calling DeleteMediaType, which will free the format block and the media type itself.
Requirements
Header |
dshow.h |
Library |
Strmiids.lib |