IEnumMediaTypes::Next
A version of this page is also available for
4/8/2010
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
Windows Embedded CE | Windows CE 2.12 and later |
Windows Mobile | Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later |
Note | Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later |