IGraphBuilder::Render 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 Render method builds a filter graph that renders the data from a specified output pin.
Syntax
HRESULT Render(
[in] IPin *ppinOut
);
Parameters
[in] ppinOut
Pointer to the IPin interface on an output pin.
Return value
Returns an HRESULT. Possible values include the following.
| Return code | Description |
|---|---|
|
Success. |
|
Partial success; the audio was not rendered. |
|
Success; the Filter Graph Manager modified a filter name to avoid duplication. |
|
Partial success; some of the streams in this movie are in an unsupported format. |
|
Partial success; the video was not rendered. |
|
Operation aborted. |
|
Insufficient memory. |
|
NULL pointer argument. |
|
No combination of intermediate filters could be found to make the connection. |
|
No combination of filters could be found to render the stream. |
|
There is no common media type between these pins. |
|
The filter to which this pin belongs is not in the filter graph. |
Remarks
This method renders the data from a specified output pin, adding new filters to the graph as needed. Filters are tried in the same order as for the IGraphBuilder::Connect method. For more information, see Intelligent Connect.
During the connection process, the Filter Graph Manager ignores pins on intermediate filters if the pin name begins with a tilde (~). For more information, see PIN_INFO.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |