IVMRMixerControl9::SetOutputRect method (vmr9.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetOutputRect method sets the position of this stream within the composition rectangle.

Syntax

HRESULT SetOutputRect(
  [in] DWORD                    dwStreamID,
  [in] const VMR9NormalizedRect *pRect
);

Parameters

[in] dwStreamID

Specifies the input stream. This value corresponds to the input pin. For example, the first input pin is stream 0.

[in] pRect

Pointer to a VMR9NormalizedRect structure that specifies the position of the rectangle with composition space.

Return value

The method returns an HRESULT. Possible values include those in the following table.

Remarks

Because this rectangle exists in compositional space, there is no such thing as an "invalid" rectangle. For example, set left greater than right to mirror the video in the x direction. Specifying an empty rectangle turns off this stream.

Include DShow.h and D3d9.h before Vmr9.h.

Requirements

See also

IVMRMixerControl9 Interface

Using the Video Mixing Renderer