Class VLCommonDisplay.TVLCommonImageDisplay

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Package: VideoLabBasicPkg

Unit: VLCommonDisplay

Inherits: TVLCommonDisplay

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 Pins 7 From TVLCommonDisplay 8 Properties 8.1 Published 8.2 Public 9 Methods 9.1 Public 10 Events 11 From TSLCustomControlItem 12 Properties 12.1 Public 13 Methods 13.1 Public

Syntax

Delphi:

type TVLCommonImageDisplay = class( TVLCommonDisplay )

C++ Builder:

class TVLCommonImageDisplay : public TVLCommonDisplay

Visual C++ (MFC):

class CTVLCommonImageDisplay : public CTVLCommonDisplay

C# (.NET):

public ref class TVLCommonImageDisplay : Mitov.VideoLab.CommonDisplay

Summary

Base abstract class for Image Displays.

Description

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

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)