IMediaObjectImpl::CheckTypesSet
| Microsoft DirectShow 9.0 |
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