IWiaVideo::CreateVideoByWiaDevID method (wiavideo.h)
The IWiaVideo::CreateVideoByWiaDevID method creates a connection to a streaming video device from its WIA_DIP_DEV_ID property.
Syntax
HRESULT CreateVideoByWiaDevID(
[in] BSTR bstrWiaDeviceID,
[in] HWND hwndParent,
[in] BOOL bStretchToFitParent,
[in] BOOL bAutoBeginPlayback
);
Parameters
[in] bstrWiaDeviceID
Type: BSTR
Specifies the value of the video device's WIA_DIP_DEV_ID property.
[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.
In order for the function to succeed, the IWiaVideo::ImagesDirectory property must be specified first. Thus, the caller must first call "put_ImagesDirectory" to specify the full path of the directory in which the captured still images will be stored.
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 |