IAMTimeline::ValidateSourceNames method
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
Note
[Deprecated. This API may be removed from future releases of Windows.]
The ValidateSourceNames method validates source names in the timeline, using the media locator. Optionally, this method also updates any source object for which it locates a file.
Syntax
HRESULT ValidateSourceNames(
long ValidateFlags,
IMediaLocator *pOverride,
long NotifyEventHandle
);
Parameters
-
ValidateFlags
-
Bitwise combination of File Name Validation Flags specifying the behavior of the media locator. The SFN_VALIDATEF_REPLACE and SFN_VALIDATEF_CHECK flags must be present, or the method returns E_INVALIDARG.
-
pOverride
-
Optional pointer to the IMediaLocator interface of a media locator to use in place of the default. To use the default media locator, set the value of this parameter to NULL. See Remarks for more information.
-
NotifyEventHandle
-
Handle to an event. The method signals the event after it has completed the validation.
Return value
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
Using the pOverride parameter, you can supply your own custom implementation of the IMediaLocator interface. For example, the default media locator will not notify your application about the files that it finds (or cannot find). To get around this limitation, you could implement a custom media locator, making it a wrapper for the default version. In your custom version, pass IMediaLocator::FindMediaFile calls directly to the default version, and examine the return value.
Note
The header file Qedit.h is not compatible with Direct3D headers later than version 7.
Note
To obtain Qedit.h, download the Microsoft Windows SDK Update for Windows Vista and .NET Framework 3.0. Qedit.h is not available in the Microsoft Windows SDK for Windows 7 and .NET Framework 3.5 Service Pack 1.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|
See also