Class VLImageDisplay.TVLBasicImageDisplayElement

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Package: VideoLabBasicPkg

Unit: VLImageDisplay

Inherits: TVLImageDisplay

Contents 1 Syntax 1.1 Delphi: 1.2 C++ Builder: 1.3 Visual C++ (MFC): 1.4 C# (.NET): 2 Summary 3 Description 4 Properties 4.1 Published 5 Methods 5.1 Public 6 From TVLImageDisplay 7 Properties 7.1 Published 8 Methods 8.1 Public 9 From TVLCommonImageDisplay 10 Properties 10.1 Published 11 Methods 11.1 Public 12 Pins 13 From TVLCommonDisplay 14 Properties 14.1 Published 14.2 Public 15 Methods 15.1 Public 16 Events 17 From TSLCustomControlItem 18 Properties 18.1 Public 19 Methods 19.1 Public

Syntax

Delphi:

type TVLBasicImageDisplayElement = class( TVLImageDisplay, ILPComponentElement, IULBasicControl )

C++ Builder:

class TVLBasicImageDisplayElement : public TVLImageDisplay

Visual C++ (MFC):

class CTVLBasicImageDisplayElement : public CTVLImageDisplay

C# (.NET):

public ref class BasicImageDisplayElement : Mitov.VideoLab.ImageDisplay

Summary

Base abstract class for Image Display elements.

Description

Common basic class for all of the VideoLab image display elements. Do not create any instances of this class.

Properties

Published

• Position - Specifies the position of the component element.
• Size - Specifies the size of the component element.

Methods

Public

• procedure Invalidate()
• procedure InvalidateSize()

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.

Events

• OnMouseMove
• OnMouseDown
• OnMouseUp
• OnClick
• OnDblClick

From TSLCustomControlItem

Properties

Public

• Index
• ComponentList

Methods

Public

• function GetParentComponent() : TComponent
• function HasParent() : Boolean
• procedure SetParent(AParent : TWinControl)
• function GetHasEnable() : Boolean
• function GetCanDisable() : Boolean
• procedure SetParentComponent(AValue : TComponent)