IMixerPinConfig::GetBlendingParameter method (mpconfig.h)

Article
02/22/2024

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetBlendingParameter method retrieves the value of the blending parameter that defines how a secondary stream is blended with a primary stream.

Syntax

HRESULT GetBlendingParameter(
  [out] DWORD *pdwBlendingParameter
);

Parameters

[out] pdwBlendingParameter

Pointer to a 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
E_UNEXPECTED	Method called on primary stream.
E_INVALIDARG	Value outside of possible range (0-255).
S_OK	Success.

Remarks

A value of zero indicates that the secondary stream is invisible; a value of 255 indicates the primary stream is invisible in the area that the secondary stream occupies.

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