Problem:
This sample program demonstrates how to use the Windows SHFileOperation API in order to send a file to the Recycle Bin when it is deleted.
Resolution:
INTRODUCTION
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This sample program will demonstrate how to use the Windows SHFileOperation API in order to send a file to the Recycle Bin when it is deleted.
This application will first call the subprogram "SelectFile" which uses the Net Express Class Library in order to display a Windows OpenFileName dialog box so that the user can select the name of a file to delete.
The default filter used for the select file is *.tmp within the current directory. A number of temp files with this extension are provided in the project directory.
Once a filename is selected and returned, this program will use the SHFileOperation API with the Delete function and the FOF-ALLOWUNDO flag which causes the deleted file to be sent to the Windows Recycle Bin so that it can be restored at a later time.
After running this sample program, open up the Recycle Bin and the file that you deleted should be displayed.
For more detailed information on using the SHFileOperation API use the following link:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/shell/reference/functions/shfileoperation.asp
SOURCE FILES:
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Program Files Description
----------------- -----------------------------------------------------------
recycledel.cbl COBOL main program that calls the SHFileOperation API.
selectfile.cbl Subprogram which is called to let the user select a filename to be deleted, from a
Dialog Box.
TEMP1.TMP Temporary files that can be selected in this demo.
TEMP2.TMP
TEMP3.TMP
REQUIREMENTS:
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Installation of the GUI class library source files option during NetExpress setup. Also requires that the Library SHELL32.LIB be added to the Link options for recycledel.exe.
OPERATION:
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Run this program to display a File Open dialog box, select a file, and the selected file name will be sent to the Recycle Bin.
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Keywords: demonstration, sample, example, demo, win32 api, recycledel.zip
demo.ex
demo.ne
