|Microsoft DirectX 9.0|
The implementation of this method is provided as sample code with the DirectShow SDK. It is not a supported DirectShow API.
The GetPmtVersionNumber method retrieves the version_number field from a specified PMT. The version number is incremented whenever the definition of the program changes.
HRESULT GetPmtVersionNumber( WORD wProgramNumber, BYTE *pPmtVersion );
[in] Specifies the program_number field of the program, as given in the PAT.
[out] Pointer to a variable that receives the version_number field.
The method returns an HRESULT value. Possible values include, but are not limited to, the values shown in the following table.
Use the GetRecordProgramNumber method to obtain the program number.