IWMSDataContainerCallback.OnGetInfo (Visual Basic .NET)
A data source plug-in calls the OnGetInfo method to return the results when the server calls IWMSDataContainer.GetInfo.
IWMSDataContainerCallback.OnGetInfo( hr As Int32,
dwFlags As UInt32,
qwInfoValue As UInt64,
qwContext As UInt64
)
Arguments
Int32 identifying the result of an IWMSDataContrainer.GetInfo call. |
|
UInt32 containing a member of the WMS_DATA_CONTAINER_GETINFO_FLAGS enumeration type. This must be the following value. |
Value |
Description |
|---|---|
WMS_SEEKABLE_CONTAINER |
The data container supports seeking. |
UInt64 containing the specific information requested by the IWMSDataContainer.GetInfo method call. Currently, the server can only request the size, in bytes, of the data container by specifying WMS_DATA_CONTAINER_SIZE. |
|
UInt64 containing a value defined by the server to identify which IWMSDataContainer.GetInfo request the plug-in is responding to when it calls OnGetInfo. The plug-in must pass this value back unaltered. |
Return Value
This method does not return a value. If the plug-in uses the IWMSEventLogIWMSEventLog Object (Visual Basic .NET) to log error information, it is recommended that it send NS_E_PLUGIN_ERROR_REPORTED (0xC00D157D) to the server in the lHr parameter. Typically, the server attempts to make plug-in error information available to the server object model, the Windows Event Viewer, and the troubleshooting list in the details pane of the Windows Media Services MMC. However, if the plug-in uses the IWMSEventLog object to log custom error information to the Windows Event Viewer, sending NS_E_PLUGIN_ERROR_REPORTED stops the server from also logging to the event viewer. For more information about plug-in error information, see Identifying Plug-in Errors.
Requirements
Reference: Add a reference to Microsoft.WindowsMediaServices.
Namespace: Microsoft.WindowsMediaServices.Interop.
Assembly: Microsoft.WindowsMediaServices.dll.
Library: WMSServerTypeLib.dll.
Platform: Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition; and Windows Server 2008.