IMediaObjectImpl::CheckTypesSet

The CheckTypesSet method determines whether the media type has been set on all of the streams.

Syntax

bool CheckTypesSet(void);

Return Value

Returns TRUE if the media type has been set on all of the non-optional streams. Otherwise, returns FALSE.

Remarks

Call this method after any operation that changes the media type on a stream. This method sets a private flag within the class. Some IMediaObjectImpl methods test this flag to determine whether certain operations are permitted. These methods generally return DMO_E_TYPE_NOT_SET if the flag is FALSE.

The only two methods in IMediaObject that change the media type on a stream are SetInputType and SetOutputType. The class template implements both of these methods.

Requirements

  Header: Dmoimpl.h
  Library: Dmoguids.lib, Msdmo.lib

See Also

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