Name 

Description 

 

procedure FileChanged(FolderPIDL: IItemIdList; FilePIDL: IItemIdList); 

This method is called by the ShellLink instance if the currently selected item has changed. 

 

function getShellLink: TJamShellLink; 

Getter method for the ShellLink property. 

 

function GoUp: Boolean; 

This method indicates that the callee should go up one level and display the contents of the current folder's parent folder. 

 

procedure PathChanged(FolderPIDL: IItemIdList); 

This method is called by the ShellLink instance if the currently displayed folder has changed. 

 

procedure Refresh(pRefreshLevel: TRefreshLevel; pItemIdList: IItemIdList = nil); 

This method indicates that the control should perform a refresh of its contents. 

 

procedure SelectAll; 

This method indicates that the callee should select all item it currently displays. 

 

procedure setShellLink(aValue: TJamShellLink); 

Setter method for the ShellLink property. 

 

Name 

Description 

 

procedure Invalidate; override; 

Invalidates the control.  

 

procedure LoadFromStream(const pStream: TStream; const pExtension: String); 

Allows using a stream to show a file's preview.  

 

class procedure PrintPreviewHandler; 

Prints a list of installed PreviewHandlers to the Debug Log.  

 

procedure Refresh(pRefreshLevel: TRefreshLevel; pItemIdList: IItemIdList = nil); 

This method indicates that the control should perform a refresh of its contents. 

 

procedure Resize; override; 

Respond to control resize 

 

Name 

Description 

 

property ShellLink: TJamShellLink read getShellLink write setShellLink; 

The TJamShellLink instance to which the current control connected. 

 

Name 

Description 

 

property AbsoluteItemIdList: IItemIdList read GetAbsoluteItemIdList write SetAbsoluteItemIdList; 

AbsoluteItemIdList of the item that is/should be previewed 

 

property Align; 

Determines how the control aligns within its container (parent control). 

 

property Anchors; 

See TCustomPanel.Anchors 

 

property AutomaticRefresh: Boolean read fAutomaticRefresh write SetAutomaticRefresh default True; 

Receives notifications about changes in the shell and performs refreshes automatically.  

 

property BevelInner default bvNone; 

See TCustomPanel.BevelInner 

 

property BevelOuter default bvNone; 

See TCustomPanel.BevelOuter 

 

property BevelWidth; 

Determines the width, in pixels, of both the inner and outer bevels of a panel. 

 

property BorderStyle; 

Determines whether the list view displays a single line border.  

 

property BorderWidth; 

Specifies the distance, in pixels, between the outer and inner bevels. 

 

property Caption; 

The caption property is used for temporary state messages the control issues.  

 

property CenterVertically: Boolean read fCenterVertically write fCenterVertically default True; 

If true, previews of images are centered vertically, if false they are top-aligned.  

 

property Color; 

See TCustomPanel.Color 

 

property Constraints; 

Specifies the size constraints for the control.  

 

property DragCursor; 

Specifies the image used to represent the mouse pointer when the control is being dragged. 

 

property DragKind; 

Specifies whether the control is being dragged normally or for docking. 

 

property DragMode; 

Specifies how the control initiates drag-and-drop or drag-and-dock operations. 

 

property Enabled: Boolean read GetEnabled write SetEnabled default true; 

Enables or disables the preview.  

 

property FallbackPdfHandlerActive: Boolean read fFallbackPdfHandler write fFallbackPdfHandler; 

If set to true PDF files will be previewed via the Acrobat ActiveX object if the registered PreviewHandler failed.  

 

property Font; 

Specifies the attributes of text written on or in the control.  

 

property OnCanResize; 

Occurs when an attempt is made to resize the control. 

 

property OnClick; 

See TControl.OnClick 

 

property OnContextPopup; 

Occurs when the user right-clicks the control or otherwise invokes the pop-up menu (such as using the keyboard). 

 

property OnDblClick; 

Occurs when the user double-clicks the left mouse button when the mouse pointer is over the control.  

 

property OnDragDrop; 

Occurs when the user drops an object being dragged. 

 

property OnDragOver; 

Occurs when the user drags an object over a control. 

 

property OnEndDock; 

Occurs when the dragging of an object ends, either by docking the object or by canceling the dragging. 

 

property OnEndDrag; 

Occurs when the dragging of an object ends, either by dropping the object or by canceling the dragging. 

 

property OnMouseDown; 

Occurs when the user presses a mouse button with the mouse pointer over a control. 

 

property OnMouseMove; 

Occurs when the user moves the mouse pointer while the mouse pointer is over a control. 

 

property OnMouseUp; 

Occurs when the user releases a mouse button that was pressed with the mouse pointer over a component. 

 

property OnStartDock; 

Occurs when the user begins to drag a control with a DragKind of dkDock. 

 

property OnStartDrag; 

Occurs when the user begins to drag the control or an object it contains by left-clicking the control and holding the mouse button down. 

 

property ParentBackground default false; 

See TCustomPanel.ParentBackground 

 

property ParentColor; 

See TCustomPanel.ParentColor 

 

property ParentFont; 

Specifies where a control looks for its font information.  

 

property ParentShowHint; 

Specifies where a control looks to find out if its Help Hint should be shown. 

 

property Path: string read GetPath write SetPath; 

Set the path of the object that should be previewed. 

 

property PopupMenu; 

Specifies the pop-up menu associated with the control. 

 

property PreviewNotAvailableMessage: string read GetPreviewNotAvailableMessage write fPreviewNotAvailableMessage; 

Sets a custom hint message if the currently selected file does not support being previewed. 

 

property PreviewNotPossibleMessage: string read GetPreviewNotPossibleMessage write fPreviewNotPossibleMessage; 

Sets a custom hint message if the preview could not be displayed. 

 

property SelectFileMessage: string read GetSelectFileMessage write fSelectFileMessage; 

Sets a custom hint message if no element is currently selected. 

 

property ShellLink: TJamShellLink read getShellLink write setShellLink; 

Connects this component to a TJamShellLink in order to synchronize it to other shell controls.  

 

property ShowHint; 

Specifies whether to show the Help Hint when the mouse pointer moves over the control. 

 

property Status: TJamFilePreviewStatus read GetStatus; 

Holds information on the state of the component 

 

property StyleName; 

Specifies the style name for this control. 

 

property Touch; 

Touch specifies the touch manager component associated with the control.  

 

property UseSystemTextPreviewHandler: Boolean read fUseSystemTextHandler write fUseSystemTextHandler default true; 

The FilePreview has an own implementation for previewing files with textual content. Set this flag to false, to use it.the  

 

property Version: String read GetVersion stored false; 

The version number of the ShellBrower controls. 

 

property Visible; 

Determines whether the component appears onscreen.  

 

Name 

Description 

 

constructor Create(AOwner: TComponent); override; 

Creates an instance of a TJamFilePreview component  

 

destructor Destroy; override; 

Destroys an instance of a TJamFilePreview component  

 

Name 

Description 

 

property OnLoadedPreview: TJamFilePreviewLoadedEvent read fLoadedPreview write fLoadedPreview; 

Occurs after the preview of a file is displayed. The event is also raised if a file could not be previewed.  

 

property OnLoadPreview: TJamFilePreviewLoadPreviewEvent read fLoadPreview write fLoadPreview; 

Occurs before the preview handler is loaded for the given file