Display_VideoPortEnabled
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TVideoGrabber.Display_VideoPortEnabled |
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Enables/disables the video port, if available on the current video capture device.
Declaration
property Display_VideoPortEnabled: Boolean index vwVideoPortEnabled read GetDisplayBoolProperties write SetDisplayBoolProperties default DEF_Display_VideoPortEnabled;
__property bool Display_VideoPortEnabled=read=GetDisplayBoolProperties, write=SetDisplayBoolProperties, index=7, default=1
Property Display_VideoPortEnabled As Boolean
Description
If a video port is available on the current video capture device (IsVideoPortAvailable returns true), and this property is true, the video capture device writes directly to video memory on the preview stream.
This provides a smoother display, however it is not possible to draw over video frames on the preview stream, even if the frame grabber is inserted on the preview stream.
If you need to draw over video frames and get the results visible on the preview window, disable this property.
See Also
TVideoRenderer AdjustPixelAspectRatio Display_Active Display_AlphaBlendEnabled Display_AlphaBlendValue Display_AutoSize Display_Embedded Display_FullScreen Display_Height Display_Left Display_Monitor Display_MouseMovesWindow Display_PanScanRatio Display_SetLocation Display_StayOnTop Display_Top Display_TransparentColorEnabled Display_TransparentColorValue Display_VideoHeight Display_VideoWidth Display_VideoWindowHandle Display_Width DualDisplay_Active DualDisplay_AlphaBlendEnabled DualDisplay_AlphaBlendValue DualDisplay_AutoSize DualDisplay_Embedded DualDisplay_FullScreen DualDisplay_Height DualDisplay_Left DualDisplay_Monitor DualDisplay_MouseMovesWindow DualDisplay_PanScanRatio DualDisplay_StayOnTop DualDisplay_Top DualDisplay_TransparentColorEnabled DualDisplay_TransparentColorValue DualDisplay_VideoHeight DualDisplay_VideoPortEnabled DualDisplay_VideoWidth DualDisplay_VideoWindowHandle DualDisplay_Visible DualDisplay_Width IsVideoPortAvailable Monitor_Primary_Index MonitorBounds MonitorsCount OnLeavingFullScreen SetParentWindow SetWindowTransparency VideoDoubleBuffered VideoHeight_PreferredAspectRatio VideoRendererExternal VideoRendererExternalIndex VideoVisibleWhenStopped VideoWidth_PreferredAspectRatio