Class VLImageDisplay.TVLExternalImageDisplayElement
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Package: VideoLabBasicPkg
Unit: VLImageDisplay
Inherits: TVLBasicImageDisplayElement
Syntax
Delphi:
type TVLExternalImageDisplayElement = class( TVLBasicImageDisplayElement, ILPDrawComponentElement )
C++ Builder:
class TVLExternalImageDisplayElement : public TVLBasicImageDisplayElement
Visual C++ (MFC):
class CTVLExternalImageDisplayElement : public CTVLBasicImageDisplayElement
C# (.NET):
public ref class TVLExternalImageDisplayElement : Mitov.VideoLab.BasicImageDisplayElement
Summary
Component element drawing video.
Description
Add this component element to draw video inside a component.
Diagram:
Example:
Methods
Public
From TVLBasicImageDisplayElement
Properties
Published
- Position - Specifies the position of the component element.
- Size - Specifies the size of the component element.
Methods
Public
From TVLImageDisplay
Properties
Published
- RenderMode - Specifies the desired rendering mode.
Methods
Public
- procedure DrawTo(AGraphics : IGPGraphics; AContoursOnly : Boolean; AWidth : Single; AHeight : Single)
- procedure Clear() - Clears the Display.
- procedure Invalidate()
From TVLCommonImageDisplay
Properties
Published
- AutoClear - Auto clear the display at the end of the video.
- AspectRatio - Specifies the desired aspect ration for the display.
- TabStop
Methods
Public
- procedure Clear() - Clears the display.
- procedure DisplayBitmap(ABitmap : TBitmap) - Displays the content of a bitmap.
- procedure DisplayBitmap(ABitmap : TVLBitmap) - Displays the content of a bitmap.
- procedure DisplayImage(AImage : IVLImageBuffer) - Displays the content of an image buffer.
Pins
- InputPin - The Video Input Pin of the display.
- UserControlOutputPin - User control source pin.
From TVLCommonDisplay
Properties
Published
- AutoSize - Auto-size to display to the video size.
- Center - Center the image in the display.
- Stretch - Stretch the image to the display size.
- StretchMax - Stretches the image to fill completely the frame, while preserving the aspect ration.
- Proportional - Keep the image proportional(Preserve aspect ratio).
- Color
Public
- ImageHeight - Returns the Height of the image in the display.
- ImageWidth - Returns the Width of the image in the display.
- ImageTop - Returns the Top position of the image in the display.
- ImageLeft - Returns the Left position of the image in the display.
Methods
Public
- procedure SetParent(AParent : TWinControl)
- function ScreenToImage(AValue : TPoint) : TPoint - Converts from screen coordinates into video frame coordinates.
