WMCreateSyncReader function

The WMCreateSyncReader function creates a synchronous reader object.

Syntax

HRESULT WMCreateSyncReader(
  IUnknown      *pUnkCert,
  DWORD         dwRights,
  IWMSyncReader **ppSyncReader
);

Parameters

pUnkCert

Pointer to an IUnknown interface. This value must be set to NULL.

dwRights

DWORD specifying the desired operation. When playing back non-DRM content, or for an application that does not have DRM rights, this value can be set to zero. Otherwise, this value must be one of the values from the WMT_RIGHTS enumeration type, indicating the operation that is performed on this file. If multiple operations are being performed, dwRights must consist of multiple values from WMT_RIGHTS combined by using the bitwise OR operator.

ppSyncReader

Pointer to a pointer to the IWMSyncReader interface of the newly created synchronous reader object.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK
The function succeeded.
E_OUTOFMEMORY
The function is unable to allocate memory for the new object.

Requirements

   
Minimum supported client Windows 2000 Professional [desktop apps only],Windows Media Format 9 Series 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
DLL Wmvcore.dll

See also

Functions

Synchronous Reader Object