MFCreatePresentationDescriptor Function
Creates a presentation descriptor.
Syntax
HRESULT MFCreatePresentationDescriptor(
DWORD cStreamDescriptors,
IMFStreamDescriptor **apStreamDescriptors,
IMFPresentationDescriptor **ppPresentationDescriptor
);
Parameter
cStreamDescriptors
Number of elements in the apStreamDescriptors array.apStreamDescriptors
Array of IMFStreamDescriptor interface pointers. Each pointer represents a stream descriptor for one stream in the presentation.ppPresentationDescriptor
Receives a pointer to an IMFPresentationDescriptor interface of the presentation descriptor. The caller must release the interface.
Rückgabewert
Ist Funktion erfolgreich, wird "S_OK" zurückgegeben. Andernfalls wird ein HRESULT-Fehlercode zurückgegeben.
Hinweise
If you are writing a custom media source, you can use this function to create the source presentation descriptor. The presentation descriptor is created with no streams selected. Generally, a media source should select at least one stream by default. To select a stream, call IMFPresentationDescriptor::SelectStream.
This function is available on the following platforms if the Windows Media Format 11 SDK redistributable components are installed:
- Windows XP mit Service Pack 2 (SP2) und höher.
- Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (Oktober 2006 Updaterollup für Windows XP Media Center Edition) installed.
Anforderungen
Mindestens unterstützter Client |
Windows Vista |
Mindestens unterstützter Server |
Windows Server 2008 |
Header |
Mfidl.h |
Bibliothek |
Mfplat.lib |
DLL |
Mfplat.dll |