TVTDataObject.QueryGetData Method

Implementation of the IDataObject.QueryGetData method.

function QueryGetData(const FormatEtc: TFormatEtc): HResult; virtual; stdcall;

This method is called by OLE subsystem to determine which data formats are offered by the owner tree. It uses the internal clipboard format list to get a list of available and allowed formats. Currently following formats are supported: 

TBaseVirtualTree 

• Virtual Treeview reference and process identifier
• native serialized tree data

TCustomVirtualStringTree 

• generic Unicode text
• generic ANSI text
• HTML formatted text (UTF-8 format)
• RTF text (UTF-16 format)
• CSV (comma separated values) but with customizable separators

TVTDataObject Class