IMixerPinConfig::SetBlendingParameter method (mpconfig.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetBlendingParameter method sets the blending parameter that defines how a secondary stream is blended with a primary stream.
Syntax
HRESULT SetBlendingParameter(
[in] DWORD dwBlendingParameter
);
Parameters
[in] dwBlendingParameter
Value between 0 and 255 that indicates the amount of blending between a primary stream and a secondary stream.
Return value
Returns an HRESULT value. Possible values include the following:
| Return code | Description |
|---|---|
|
Method called on primary stream. |
|
Value outside of possible range (0 to 255). |
|
Success. |
Remarks
The value of the dwBlendingParameter parameter must be between 0 and 255, where 0 makes the secondary stream invisible and 255 makes the primary stream invisible in the area that the secondary stream occupies. If no value is set the default is 255.
This method is not intended to be called on the primary stream.
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 | mpconfig.h |
| Library | Strmiids.lib |