IWMHeaderInfo::AddMarker method (wmsdkidl.h)
[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The AddMarker method adds a marker, consisting of a name and a specific time, to the header section of the ASF file.
Syntax
HRESULT AddMarker(
[in] LPCWSTR_WMSDK_TYPE_SAFE pwszMarkerName,
[in] QWORD cnsMarkerTime
);
Parameters
[in] pwszMarkerName
Pointer to a wide-character null-terminated string containing the marker name. Marker names are limited to 5120 wide characters.
[in] cnsMarkerTime
The marker time in 100-nanosecond increments.
Return value
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The method succeeded. |
|
The object cannot currently be configured. |
|
pwszMarkerName is not a valid pointer. |
|
The method failed for an unspecified reason. |
Remarks
The writer does not support markers. When accessing IWMheaderInfo from the writer, calls to AddMarker will return E_NOTIMPL.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only],Windows Media Format 7 SDK, or later versions of the SDK |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | wmsdkidl.h (include Wmsdk.h) |
| Library | Wmvcore.lib; WMStubDRM.lib (if you use DRM) |