IMLMediaParser::ExtractMetadata (Compact 7)
3/12/2014
This method extracts the metadata from the media file, such as the music title or author, in the specified file.
Syntax
HRESULT ExtractMetadata(
MLDSItem file,
IMLPropertySet *pPropertySetWanted,
IMLPropertySet *pFileMetadata
);
Parameters
- file
[in] A structure of type MLDSItem that contains the file information.
- pPropertySetWanted
[in] Pointer to the IMLPropertySet interface that lists the desired properties. Can be NULL to request all properties.
- pFileMetadata
[in] Pointer to the IMLPropertySet interface that will hold the parsed properties.
Return Values
Returns an HRESULT value. Possible values include the following.
| Return code | Description |
|---|---|
S_OK |
The method was successful. |
E_INVALIDARG |
One or more parameters are invalid. |
E_POINTER |
The pPropertySetWanted or the pFileMetadata parameter is invalid. |
E_FAIL |
The method was not successful. |
E_OUTOFMEMORY |
An out-of-memory error occurred. |
Remarks
The Media Library determines which media parser object to call for each request and internally calls this method to extract the metadata.
Requirements
Header |
mlibdll_plugin.h, |
Library |
mlibdll.lib |