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How to access the webcam
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Information générale
Forum:
Visual FoxPro
Catégorie:
Contrôles ActiveX en VFP
Versions des environnements
Visual FoxPro:
VFP 9
Divers
Thread ID:
01530556
Message ID:
01530576
Vues:
252
it errors on
thisform.oleVideo.setserial("your-serial")

"OLE error code 0x80020006: Unknown name

it's a built in webcam on a DELL XPS with i& core win 7

thanks


Peter
>>>>Has anybody accessed a webcam (internal or axternal) from vfp?
>>>>
>>>>Peter
>>>
>>>I use VisioForge video capture and grab a frame from the video feed. All the other non-activex solutions I found were spotty, at best.
>>I downloaded the demo but it's .net stuff
>>do you have any code examples on how to use this from within VFP?
>
>drag the activex control on a form, name it oleVideo and create dropdown list box called cboDevices on form
>
>In form's init method call thisform.initvideodevices()
>
>
>method initvideodevices
>LOCAL lnCount,lnx
>lnCount=thisform.oleVideo.Video_capturedevices_getcount()
>
>** Zero Based
>IF lnCount>=1
>	FOR lnX=1 TO lnCount
>		lcName=thisform.oleVideo.video_capturedevices_getitem(lnX-1)
>		thisform.cboDevices.AddItem(lcName,lnX)
>	ENDFOR
>	IF EMPTY(thisform.cboDevices.value)
>		thisform.cboDevices.Value=thisform.oleVideo.video_capturedevices_getitem(lnCount-1)
>	ENDIF
>	IF !EMPTY(thisform.cboDevices.Value)
>		thisform.initvideo()
>	ENDIF
>ELSE
>	MESSAGEBOX("No video devices found.",0+64+0,_screen.cApplicationName)
>ENDIF
>
>method initvideo
>TRY
>	thisform.oleVideo.setserial("your-serial")
>	thisform.oleVideo.video_CaptureDevice=thisform.cboDevices.Value
>	thisform.oleVideo.audio_playAudio=.F.
>	thisform.oleVideo.deinterlace_use=.F.
>	thisform.oleVideo.video_useeffects=.F.
>	thisform.oleVideo.video_framerate=10
>	thisform.oleVideo.outputformat= 9  && Format_DirectStream_DV 10  && Format_DirectStream_MPEG 
>	*thisform.oleVideo.video_codec="MJPEG Compressor"
>	*thisform.oleVideo.video_use_Compression=.F.
>
>	thisform.oleVideo.network_streaming_enabled=.F.
>	thisform.oleVideo.audio_captureformat_useBest=.F.		&&.T.
>	thisform.oleVideo.video_captureformat_usebest=.T.		&&.T.
>	thisform.oleVideo.video_renderer= 1  && VR_VMR9
>	thisform.oleVideo.screen_stretch=.F.
>	thisform.oleVideo.video_renderer_deinterlace_UseDefault= .T.
>	thisform.oleVideo.video_resizeorcrop_Enabled=.F.
>
>	thisform.oleVideo.start()
>	
>CATCH TO oErr
>	MESSAGEBOX("Error: "+oErr.message,0+64+0,_screen.cApplicationName)
>ENDTRY
>
>
>method getpicture
>LPARAMETERS lcFileNameWithPath,lnImageQuality
>thisform.oleVideo.frame_Grabber_Enabled=.T.
>thisform.oleVideo.frame_GetCurrent()
>thisform.oleVideo.frame_SaveToJPEGFile(lcFileNameWithPath,lnImageQuality)
>
Peter Cortiel
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