Namespace: Consultingwerk.Util
Class 
DragAndDropHelper Copy to Clipboard
Parent classes:
Progress.Lang.Object
Consultingwerk.Util.DragAndDropHelper

Inherits: Progress.Lang.Object

File:DragAndDropHelper
Syntax:Static methods only, Protected constructor to disallow
instance creation
Author(s):Mike Fechner / Consultingwerk Ltd.
Created:Mon Dec 28 16:21:25 CET 2009
Notes:This file is intended for GUI for .NET only

Navigate to: Methods | Constructors | Events | Properties



Top Method Summary
Options Name Purpose
+ INTEGER ConvertFileSize (int64) Transforms a file size and returns this as INTEGER array to be converted into a System.Byte[]
+ INTEGER ConvertFileSize (longchar) Calculates the file size (size of LONGCHAR) and returns this as an INTEGER array to be converted into a System.Byte[]
+ System.Windows.Forms.DataObject GetDragDropDataObject (character, longchar) Creates a Drag & Drop DataObject for a File Drop Operation (Progress/WinForms application to Windows Explorer)
+ System.Windows.Forms.DataObject GetDragDropDataObject (character, memptr) Creates a Drag & Drop DataObject for a File Drop Operation (Progress/WinForms application to Windows Explorer)
+ System.Windows.Forms.DataObject GetDragDropDataObject (character[]) Creates a Drag & Drop DataObject for a File Drop Operation (Progress/WinForms application to Windows Explorer)
+ CHARACTER GetDropFileNames (IDataObject) Returns an ABL CHARACTER array of file names in the passed in IDataObject
+ INTEGER IntToByteArray (int64) Converts the given INT64 value to an Array of Bytes (INTEGER 0..255)
+ LOGICAL IsFileDrop (IDataObject) Returns TRUE when the IDataObject contains File Drop data.
+ LOGICAL IsTextDrop (IDataObject) Returns TRUE when the IDataObject contains Text Drop data.

Top Constructor Summary
Options Name Purpose
# DragAndDropHelper () Protected default constructor.


Method Detail
Top

PUBLIC INTEGER ConvertFileSize (int64)
Purpose: Transforms a file size and returns this as INTEGER array to be
converted into a System.Byte[]
Notes:

Parameters:
piFileSize INT64
The actual file size in bytes
Returns INTEGER
The file size in bytes as a INTEGER array
Top

PUBLIC INTEGER ConvertFileSize (longchar)
Purpose: Calculates the file size (size of LONGCHAR) and returns this as an
INTEGER array to be converted into a System.Byte[]
Notes:

Parameters:
plcContents LONGCHAR
The LONGCHAR to return the file size for
Returns INTEGER
The file size in bytes as a INTEGER array
Top

PUBLIC System.Windows.Forms.DataObject GetDragDropDataObject (character, longchar)
Purpose: Creates a Drag & Drop DataObject for a File Drop Operation
(Progress/WinForms application to Windows Explorer)
Notes: The file is not already existing as a real file and the file contents
will be passed to the receiving application
When dragging to the Windows Explorer, the Drag & Drop operation should
be started with the Link DragDropEffect

Parameters:
pcFileName CHARACTER
The file name for the target of the drag and drop operation
plcFileContents LONGCHAR
The longchar with the contents of the file
Returns System.Windows.Forms.DataObject
The System.Windows.Forms.DataObject with the data for the drag and drop operation
Top

PUBLIC System.Windows.Forms.DataObject GetDragDropDataObject (character, memptr)
Purpose: Creates a Drag & Drop DataObject for a File Drop Operation
(Progress/WinForms application to Windows Explorer)
Notes: The file is not already existing as a real file and the file contents
will be passed to the receiving application
When dragging to the Windows Explorer, the Drag & Drop operation should
be started with the Link DragDropEffect

Parameters:
pcFileName CHARACTER
The file name for the target of the drag and drop operation
pmFileContents MEMPTR
The MEMPTR with the data for the contents of the file
Returns System.Windows.Forms.DataObject
The System.Windows.Forms.DataObject with the data for the drag and drop operation
Top

PUBLIC System.Windows.Forms.DataObject GetDragDropDataObject (character[])
Purpose: Creates a Drag & Drop DataObject for a File Drop Operation
(Progress/WinForms application to Windows Explorer)
Notes: The file names are supposed to be already existing as real files
on the file system

Parameters:
pcFileNames CHARACTER
The ABL Character Array of file names for the drag and drop operation
Returns System.Windows.Forms.DataObject
The System.Windows.Forms.DataObject with the data for the drap and drop operation
Top

PUBLIC CHARACTER GetDropFileNames (IDataObject)
Purpose: Returns an ABL CHARACTER array of file names in the passed in
IDataObject
Notes:

Parameters:
poData System.Windows.Forms.IDataObject
The IDataObject with the data of a receiving drag and drop operation
Returns CHARACTER
The ABL Character array with the file names
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PUBLIC INTEGER IntToByteArray (int64)
Purpose: Converts the given INT64 value to an Array of Bytes (INTEGER 0..255)
Notes: The maximum supported extent of the array is 8

Parameters:
piInteger INT64
The INT64 value to convert
Returns INTEGER
The ABL Integer array with which can be converted into a .NET byte array
Top

PUBLIC LOGICAL IsFileDrop (IDataObject)
Purpose: Returns TRUE when the IDataObject contains File Drop data.
Notes:

Parameters:
poData System.Windows.Forms.IDataObject
The IDataObject with the data of a receiving drag and drop operation
Returns LOGICAL
True when the IDataObject contains file drop data
Top

PUBLIC LOGICAL IsTextDrop (IDataObject)
Purpose: Returns TRUE when the IDataObject contains Text Drop data.
Notes:

Parameters:
poData System.Windows.Forms.IDataObject
The IDataObject with the data of a receiving drag and drop operation
Returns LOGICAL
True when the IDataObject contains text drop data


Constructor Detail
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PROTECTED DragAndDropHelper ()
Purpose: Protected default constructor.
Notes: There's no need to create instances of the helper classes



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