LWia::StartVideoPreview

#include "ltwrappr.h"

virtual L_INT LWia::StartVideoPreview(bStretchToFitParent)

Starts the video preview.

Parameters

L_BOOL bStretchToFitParent

Specifies whether the video display is stretched to fit the parent window. Possible values are:

Value	Meaning
TRUE	Stretch the video preview to fit the parent window.
FALSE	Video is displayed in a supported resolution smaller than the parent window.

Returns

Value	Meaning
SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This feature is available in LEADTOOLS version 16 or higher.

To specify the parent window or control where to start the video preview, call the LScanner::SetWindow function before calling [LWia:StartVideoPreview.

[LWia:StartVideoPreview starts the video stream preview in the window or control specified using the LScanner::SetWindow function.

[LWia:StartVideoPreview internally sets the image directory of the captured still images to the device's default path, unless you called LWia::SetPropertyString using the WIA_DPV_IMAGES_DIRECTORY property ID and the directory path to be used before calling the [LWia:StartVideoPreview function.

Required DLLs and Libraries

• LTWIA
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.