See Also
 Important: |
|---|
| This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist. |
This method determines the media type associated with the current connection of the pin. This method fails if the pin is unconnected.
Syntax
HRESULT ConnectionMediaType( AM_MEDIA_TYPE* pmt ); |
Parameters
- pmt
-
[out] Pointer to an AM_MEDIA_TYPEstructure.
If the pin is connected, the media type is returned. Otherwise, the structure is initialized to a default state in which all elements are 0, with the exception of lSampleSize, which is set to 1, and bFixedSizeSamples, which is set to TRUE.
Return Value
Returns an HRESULTvalue that depends on the implementation.
HRESULTcan 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
The returned structure can contain an allocated format block and a reference-counted IUnknowninterface pointer.
These resources should be released by calling the FreeMediaTypeutility function.
This method is implemented in the base classes by CBasePin::ConnectionMediaType.
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 |