ICodecAPI::IsModifiable method (strmif.h)
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]
The IsModifiable method queries whether a codec property can be changed, given the codec's current configuration.
Syntax
HRESULT IsModifiable(
[in] const GUID *Api
);
Parameters
[in] Api
Pointer to a GUID that specifies the property. For a list of standard codec properties, see Codec API Properties.
Return value
This method can return one of these values.
| Return code | Description |
|---|---|
|
The value of this property cannot be changed. |
|
The value of this property can be changed. |
Remarks
Any errors besides those in the previous table indicate an inability to process the call.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP with SP2 [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2003 R2 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |