Class VLDSCapture.TDSCaptureGraph

This is a Beta Read Only version of this page. Please review and send recommendations to mitov@mitov.com. We will enable the editing as soon as we are happy with the overall Wiki site.

Package: VideoLabBasicPkg

Unit: VLDSCapture

Inherits: TDSGraph

Contents 1 Syntax 1.1 Delphi: 1.2 C++ Builder: 1.3 Visual C++ (MFC): 1.4 C# (.NET): 2 Summary 3 Description 4 Events 5 From TDSGraph 6 Properties 6.1 Published 6.2 Public 7 Methods 7.1 Public 8 Pins 9 Events 10 From TLPPersistent 11 Methods 11.1 Public

Syntax

Delphi:

type TDSCaptureGraph = class( TDSGraph )

C++ Builder:

class TDSCaptureGraph : public TDSGraph

Visual C++ (MFC):

class CTDSCaptureGraph : public CTDSGraph

C# (.NET):

public ref class DSCaptureGraph : Mitov.VideoLab.DSGraph

Summary

DirectShow Capture Graph settings class.

Description

Defines the class for DirectShow Capture Graph settings.

Events

• OnVideoGrabberCreate - Occurs before the video grabber filter is created.
• OnReleaseFilters - Occurs when the graph filters are being released(The graph is destroyed.).
• OnAfterRendering - Occurs after the Graph has been rendered(All the filters are created and connected.).
• OnCustomRender - Occurs during the DirectShow Graph rendering.

From TDSGraph

Properties

Published

• AdditionalFilters
• Register

Public

• MediaControl
• MediaEvent
• GraphBuilder
• Graph
• Filters
• HiddenForm

Methods

Public

• function GetFilterList(AFiltersList : TStrings) : Boolean
• function GetFilterByClassID(ClassID : TCLSID) : IBaseFilter
• function SetMediaEvent() : Boolean
• function CreateFilterByName(AFilterName : String) : IBaseFilter
• function ConnectFilterToPin(ASourceFilter : IBaseFilter; ASinkPin : IPin) : Boolean
• function GetAudioRender() : IBaseFilter
• function GetVideoRender() : IBaseFilter
• function RegisterAdditionalFilters() : Boolean
• function CreateGraph() : Boolean
• function CreateGraphBuilder() : Boolean
• procedure GraphChanged()
• procedure GraphBuilt()
• procedure DockResized(APreviewDock : IDSPreviewDock)
• function ConfigVideoWindow(APreviewDock : IDSPreviewDock; APreviewVisible : Boolean; AVideoSize : TSize) : Boolean
• procedure RegisterGraph()
• procedure UnregisterGraph()
• procedure Error(Msg : String; ErrorCode : Integer)
• procedure Warning(Msg : String; ErrorCode : Integer)
• procedure CheckWarning(Msg : String; AValue : HResult)
• procedure DestroyGraph()
• procedure DestroyDownstream(pFilter : IBaseFilter)
• procedure DestroyUpstream(pFilter : IBaseFilter)
• procedure SetMsgEvent(AValue : TWndMethod)
• procedure SetDrainMessage(AValue : IDSPreviewDock)
• function GetMediaControl() : Boolean
• function Run() : Boolean
• procedure Stop(AShowError : Boolean)
• function SaveToFile(AFileName : String) : Boolean
• function GetOwner() : TPersistent

Pins

• GraphPin

Events

• OnError
• OnWarning
• OnGraphBuilt
• OnDeviceLost
• OnAborted
• OnStarvation

From TLPPersistent

Methods

Public

• function QueryInterface(IID : TGUID; Obj : TObject) : HResult
• function GetOwner() : TPersistent
• procedure OwnerNameChanged(AOldName : String; ANewName : String)