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IPin::ConnectionMediaType (Windows Embedded CE 6.0)

1/6/2010

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_TYPE structure.

    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 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

The returned structure can contain an allocated format block and a reference-counted IUnknown interface pointer.

These resources should be released by calling the FreeMediaType utility function.

This method is implemented in the base classes by CBasePin::ConnectionMediaType.

Requirements

Windows Embedded CE Windows CE 2.12 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

See Also

Reference

IPin Interface