IMSVidCtl::get_MaintainAspectRatio

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Microsoft DirectShow 9.0

IMSVidCtl::get_MaintainAspectRatio

This topic applies to Windows XP or later.

The get_MaintainAspectRatio method queries whether the Video Control maintains the aspect ratio of the source video.

Syntax

  HRESULT get_MaintainAspectRatio(
  
  VARIANT_BOOL*
  
  CurrentValue
  
  );

Parameters

  pCurrentValue

[out]  Pointer to a variable of type VARIANT_BOOL that receives one of the following values.

Value Description
VARIANT_TRUE The Video Control will maintain the aspect ratio of the source video.
VARIANT_FALSE The Video Control will stretch the video to fill the window.

Return Values

Returns an HRESULT value. Possible values include the following.

Value Description
S_OK Success.
E_POINTER NULL pointer argument.

Requirements

  Header: Dshow.h.

  Library: Quartz.dll.

See Also