IWiaVideo::CreateVideoByDevNum method (wiavideo.h)

Article
10/13/2021

The IWiaVideo::CreateVideoByDevNum method creates a connection to a streaming video device with the device number obtained from a Directshow enumeration.

Syntax

HRESULT CreateVideoByDevNum(
  [in] UINT uiDeviceNumber,
  [in] HWND hwndParent,
  [in] BOOL bStretchToFitParent,
  [in] BOOL bAutoBeginPlayback
);

Parameters

[in] uiDeviceNumber

Type: UINT

Specifies the video device's Directshow device number.

[in] hwndParent

Type: HWND

Specifies the window in which to display the streaming video.

[in] bStretchToFitParent

Type: BOOL

Specifies whether the video display is stretched to fit the parent window. Set this parameter to TRUE if the display should be stretched to fit the parent window; otherwise, set to FALSE.

[in] bAutoBeginPlayback

Type: BOOL

Specifies whether the streaming video begins playback as soon as this method returns. Set this parameter to TRUE to cause immediate playback; set it to FALSE to require a call to IWiaVideo::Play before video playback begins.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

By default, the video is displayed in the video device's default resolution. If bStretchToFitParent is set to TRUE, the video display fills the window.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	wiavideo.h
DLL	Wiavideo.dll

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