TActiveX

Fonte: source/classes/activex.prg

Inherits from: TControl

TActiveX is FiveWin's ActiveX/COM container control that enables embedding ActiveX components (such as WebBrowser, Windows Media Player, Adobe Reader, or any registered COM component) inside FiveWin windows and dialogs. It provides direct access to the underlying OleObject for invoking methods, reading and writing properties, and handling events.

Key DATA Members

DATA	Type	Description
`hActiveX`	Handle	Window handle of the embedded ActiveX control
`cProgID`	Character	ProgID string (e.g. "Shell.Explorer", "WMPlayer.OCX")
`aProperties`	Array	List of property names browsable via OLE
`aMethods`	Array	List of method names browsable via OLE
`aEvents`	Array	List of event names provided by the control
`bOnEvent`	Block	Code block executed on each fired event
`oOleAuto`	Object	Underlying OLE automation object

Methods

Method	Description
`New( oWnd, cProgID, nRow, nCol, nW, nH )`	Create a new ActiveX control instance
`ReDefine( nId, oWnd, cProgID )`	Redefine from a dialog resource placeholder
`Do( cMethod, ... )`	Invoke a method of the underlying OLE object
`GetProp( cName )`	Read a property value from the OLE object
`SetProp( cName, uVal )`	Write a property value to the OLE object
`OnEvent( nEvent, aParams )`	Event handler called on each ActiveX event

Example: Embedding a WebBrowser Control

#include "FiveWin.ch"

function Main()

   local oWnd, oActiveX

   DEFINE WINDOW oWnd TITLE "WebBrowser Embedded" SIZE 800, 600

   oActiveX := TActiveX():New( oWnd, "Shell.Explorer", 10, 10, 780, 550 )

   // Navigate to a URL using the OLE object
   oActiveX:Do( "Navigate2", "https://fivetechsoft.com" )

   oWnd:oClient := oActiveX

   ACTIVATE WINDOW oWnd CENTERED

return nil

Notes

The ActiveX control is registered on the local system. Use cProgID to specify the COM ProgID (e.g. "Shell.Explorer", "WMPlayer.OCX").
Use oOleAuto for direct COM automation calls when more flexibility is needed than Do() / GetProp() / SetProp() provide.
Set bOnEvent to a code block with one or two parameters to intercept events. The block receives the event number and an optional array of parameters.
The control can also be placed via resource editor by inserting a custom control and then calling ReDefine() at runtime.
TActiveX supports event sink dispatching; declare aEvents to enumerate supported events at runtime.

TActiveX

Key DATA Members

Methods

Example: Embedding a WebBrowser Control

Notes

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