Name 

Description 

 

TJamBaseShellListView = class(TCustomListView, IJamShellControl, ICheckBoxViewer, IDropTarget, IItemIdListViewer, ICancellationToken); 

Base class for our listview based controls that implements basic features shared among all our listview controls. 

 

TJamCheckableListItem = class(TListItem); 

Base class for our listview based controls.  

 

TJamCustomFileList = class(TJamBaseShellListView, IDropTarget, IDropSource, IIconViewer, IItemIdListViewer, ICheckBoxViewer, IUICommandInvokable, IJamMultiSelectShellControl); 

Base class for our listview based controls that are able to show file system objects (only).  

 

TJamFileListItem = class(TJamCheckableListItem); 

Objects of the type JamFileListItem are used to populate the TJamFileList control.  

 

TJamFileListItems = class(TListItems); 

Class which holds instances of the TJamFileListItem class.  

 

TJamShellListColumn = class(TListColumn); 

Column class that is used instead of TListColumn in TJamShellList, TJamDriveList and TJamFileList  

 

TJamShellListColumns = class(TListColumns); 

Columns class that is used instead of TListColumns in TJamShellList, TJamDriveList and TJamFileList  

 

Name 

Description 

 

TColumnsProperties = record; 

This records holds information about the current column properties.  

 

TJamCheckMode = (
None,
Simple,
SelectionList,
AutoCheckSelect
); 

Different checking modes for the TJamShellList.  

 

TJamIconSize = (
Small,
Large,
ExtraLarge,
Jumbo
); 

Icon sizes for ViewStyle vsIcon.  

 

TJamListItemAction = (
shiPathCheckSucceeded,
shiPathCheckFailed,
shiDataLoaded
); 

Action types that are passed in the TOnListItemEvent event.  

 

TSortStage = (
ssBeforeSort,
ssAfterSort
); 

Possible values for sort stages. 

Name 

Description 

TColumnArray = Array of TShellColumnId; 

This class represents an array of TShColumnIDs.  

TJamShellColumnChangedEvent = set of ( scAdded, scRemoved ); 

The possible types of events that can occur in an OnBeforeShellColumnChanged event.  

TOnAddItem = procedure (Item: TJamFileListItem; var CanAdd: Boolean) of object; 

This procedure is called if an item is added to the control. 

TOnAddPath = procedure (Path: String; var CanAdd: Boolean) of object; 

This procedure is called if an item is added to the control. 

TOnAfterShellColumnChangedEvent = procedure (Sender: TJamBaseShellListView; const ColumnID: TShellColumnId; const Event: TJamShellColumnChangedEvent) of object; 

This procedure is called when after user has changed the columns e.g. by using the header context menu.  

TOnBeforeShellColumnChangedEvent = procedure (Sender: TJamBaseShellListView; const ColumnID: TShellColumnId; const Event: TJamShellColumnChangedEvent; var AllowChange: Boolean) of object; 

This procedure is called when the user changes the columns by using the header context menu.  

TOnCheckStateChanged = procedure (sender: TObject; ItemIndex: Integer; Path: UnicodeString; CheckState: TJamSelectionState) of object; 

This procedure is called if the state of the corresponding checkbox has changed. 

TOnGetColumnInfo = procedure (Sender: TJamBaseShellListView; const pColumnId: TShellColumnId; var pColumnInfo: TColumnInfo) of object; 

This event can be implemented to consistently customize column names. It will be called whenever the name of a column is displayed: as column header, in the context menu or in the columns dialog.  

TOnHandleShellNotification = procedure (Sender: TObject; Event: TNotificationEvent; pidl1, pidl2: IItemIdList; var pHandled: boolean) of object; 

This procedure is called when controls are about to handle shell notifications. 

TOnListItemEvent = procedure (Sender: TObject; pItem: TJamCheckableListItem; const pListItemEvent: TJamListItemAction) of object; 

This procedure is called when a special action has been executed on a ListItem, e.g. after the path has been check asynchronously.  

TOnSort = procedure (sender: TObject; sortStage: TSortStage) of object; 

This procedure is called when the sorting will begin or has finisehd its work. 

TOnThumbnailUpdated = procedure (sender: TObject; item: TListItem; var ThumbnailBitmap: TBitmap) of object; 

The event that is fired when a Thumbnail was updated. 

VariantArray = Array of Variant; 

Represents an array of Variants